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MCP server · registry snapshot 2026-10-23 · last tested 2026-10-23

dev.onpage/onpage

Free SEO MCP that closes the loop: find, fix, ship as a PR or to a CMS, prove. 37 tools, no key. — the publisher's description

5 of 5 record checks metRead-only · tools listed 2026-10-23Topic: commerce-and-marketing · AI-classifiedversion 2.14.0PHPstreamable HTTP37 tools

Summary

dev.onpage/onpage is a remote MCP server listed in the official MCP registry at version 2.14.0. On 2026-10-23 ProtocolProbe connected to it in read-only mode and read its inventory: 37 tools, 3 resources and 14 prompts.

Record checks

5 of 5 record checks met · 4 do not apply

  • met: Registry entry is active and says how to run it
  • met: Source repository link opens
  • met: Repository is not archived
  • met: Code pushed to the repository in the 90 days before our check
  • met: Repository publishes a security policy (SECURITY.md)
  • not applicable: Package names its licence with a standard (SPDX) identifier
  • not applicable: The version the registry lists can be installed and is not withdrawn
  • not applicable: npm package carries build provenance (attestation)
  • not applicable: No known critical or high advisory in the package or its dependencies
  • Not ranked by downloads: a remote server publishes no download figure
  • Not ranked by stars: 2 stars (ranked from 10)

From public records, not a safety rating. Each check with its reason · Is it safe to install?

Key facts

Runs
remote (hosted by the publisher)
Transport
streamable HTTP
Sign-in
none needed to open a session
Repository
public
Tools
37
Described as changing data
8 of 37 toolsAI-classified
Topic
commerce-and-marketingAI-classified
Last tested
2026-10-23

Add to your client

Worth knowing before you connect it

  • 8 tools are described as changing something (watch, dashboard, get_fix_pack, …): our AI model's reading of the descriptions, not something we tested, and the server opened a session without any credential. We did not call them.

Each line comes from a section below, with its source and date.

How fresh this is

Live-tested
yes, a real session (not a text-only review)
Last tested
2026-10-23
Mode
read-only (no tool calls)
Latest version
2.14.0, published 2026-10-14 (registry, as of the 2026-10-23 snapshot)
First listed version
2026-10-05 (earliest version still in the registry; older removed versions would be earlier)
Version history
58 versions listed, 2026-10-05 to 2026-10-14; 58 in the 90 days before the 2026-10-23 snapshot.
Most recent 12 versions
  • 2.14.0 · 2026-10-14
  • 2.13.0 · 2026-10-14
  • 2.12.0 · 2026-10-14
  • 2.11.0 · 2026-10-13
  • 2.10.0 · 2026-10-13
  • 2.9.0 · 2026-10-13
  • 2.8.0 · 2026-10-12
  • 2.7.0 · 2026-10-12
  • 2.6.0 · 2026-10-12
  • 2.5.0 · 2026-10-12
  • 2.4.0 · 2026-10-12
  • 2.3.0 · 2026-10-12
(versions still listed in the registry only)
Registry data
snapshot 2026-10-23
Package and repository
checked 2026-10-22
Engine
mcp-runtime-engine@0.1.0 · sdk@1.32.0

Changes since the last refresh

New in the registry: not in the list of 2026-10-04, listed on 2026-10-23 with version 2.14.0 (published 2026-10-14).

Source: the official MCP Registry list on 2026-10-04 and on 2026-10-23.

What it is

What does this server offer?

Observed inventory
37tools
3resources
14prompts

8 of 37 tools are described as changing something (creating, editing, deleting, sending or running). For 4 the reading was uncertain, so no mark is shown.

  • site_memoryreads or searches

    “A memory per site that every OnPage.dev tool writes to, across chats and clients.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world no

    8 inputs
    • modestring“Default open.”
    • urlstring“The site's home page.”
    • memory_keystring“The memory_key you got when the memory was created.”
    • share_learningboolean“Opt in (true) or out (false) of sharing anonymous results: only the fix type and the rounded lift, never the site, URLs or numbers.”
    • kindstring
    • limitnumber
    • notestring
    • detailstring“brief = short summary.”
  • scan_pageon 4 other serversreads or searches

    “Scan a page for Google and AI search: 0-100 score, issues to fix first with why and how, AI readiness and key facts.”

    Publisher declares: read-only yes · destructive no · idempotent no · open-world yes

    6 inputs
    • modestring“Default page.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • htmlstring“The complete HTML document, up to 900 KB.”
    • sectionsarray“Sections to include.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • site_auditon 9 other serversreads or searches

    “Audit a whole site, step by step, and work with the result.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    13 inputs
    • modestring“Default start.”
    • urlstring“Full address, for example https://example.com.”
    • max_pagesinteger“How many pages to audit, default 10, at most 25.”
    • audit_idstring“The id returned by start_site_audit.”
    • pagesarray“One row per crawled page.”
    • linksarray“Optional internal links, for link equity, orphans and internal link suggestions.”
    • sourcestring“Where the rows come from, for example Screaming Frog or Ahrefs Site Audit.”
    • previous_audit_idstring“Optional: the audit to compare with.”
    • competitor_audit_idstring“Optional: a finished audit of a competitor's site, to compare the two sites side by side instead of over time.”
    • brandstring“Optional agency or team name to show instead of OnPage.dev.”
    • notestring“Optional short note for the reader, shown at the top.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • watchon 18 other serversdescribed as changing data

    “Monitoring that runs on its own and posts changes to a webhook.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    15 inputs
    • modestring“Default page.”
    • urlstring“Full address, for example https://example.com/pricing.”
    • webhook_urlstring“Optional https URL that receives a JSON POST when something changes, for example a Slack or Discord incoming webhook.”
    • competitor_ofstring“Optional: your own page.”
    • watch_idstring“For status and stop.”
    • actionstring“create (default), status or stop.”
    • schedule_idstring“For status and stop.”
    • every_daysnumber“How often, default 7.”
    • max_pagesnumber“Pages per audit, default 25.”
    • pagesarray“Key pages to guard besides the home page (money pages first).”
    • guard_idstring“For status and stop.”
    • competitorsarray“Competitor home pages.”
    • topicsarray“Your topics or keywords, to flag overlapping pages.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • dashboarddescribed as changing data

    “A daily SEO data feed for key pages and a live dashboard in the chat.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    15 inputs
    • modestring“Default feed.”
    • urlstring“Home page of the site.”
    • pagesarray“Optional key pages to track, up to 10.”
    • namestring“Optional name, for example the client's name.”
    • fix_log_idstring“Optional fix log from log_fix, to include shipped fixes.”
    • replaceboolean“Replace this connection's existing feed.”
    • feed_idstring“Feed from create_dashboard_feed.”
    • datasetstring
    • fromstring“Start date, YYYY-MM-DD.”
    • tostring“End date, YYYY-MM-DD.”
    • sourcesarray“What the user has connected in Claude.”
    • bigqueryobject“Optional, for ready SQL.”
    • formatstring“blueprint (default) for Claude Dashboards, or html for a complete, designed dashboard page filled with the feed's data, ready to show as an artifact.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • measureon 9 other serverscalculates or converts

    “Prove and measure with numbers from the user's Search Console, GA4, Ahrefs or Semrush, including numbers the user pastes.”

    Publisher declares: read-only no · destructive no · idempotent yes · open-world no

    13 inputs
    • modestring“Default impact.”
    • pagesarray
    • fix_datestring“Date the fixes went live, YYYY-MM-DD.”
    • daysinteger“Length of each period in days.”
    • sourcestring“Where the counts come from, for example Ahrefs Brand Radar.”
    • watch_idsarray“Optional watch ids, to list what changed on each page and when.”
    • fix_log_idstring“Optional fix log from log_fix: takes the fix date from it and saves the result per fix, with a rollback plan for fixes that did worse.”
    • rowsarray
    • brand_termsarray“Brand and product names, and misspellings.”
    • your_domainstring“Your domain, e.g.”
    • rows_beforearray“Optional same rows from an earlier period.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • find_opportunitieson 9 other serversreads or searches

    “Turn Search Console, GA4 or Ahrefs rows (also rows the user pastes) into the fastest wins, instead of judging them by hand; content_decay and traffic_drop take search_type for Discover, News, Image o…”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    11 inputs
    • modestring“Default ctr_gaps.”
    • rowsarray“Search Console rows for one period (28 days works well).”
    • search_typestring“Search Console search type of the rows, default web.”
    • fix_log_idstring“Optional fix log from log_fix, to spot undone fixes on losing pages.”
    • drop_datestring“Optional first day of the drop, YYYY-MM-DD, to check Google updates around it.”
    • urlsarray“Article pages to check.”
    • adsarray“Google Ads search terms.”
    • gscarray“Search Console queries.”
    • brand_termsarray“Optional brand names, handled apart.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • backlinkson 2 other serversreads or searches

    “Turn backlink data from Ahrefs, Semrush or similar into links won back, won or cleaned up.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    16 inputs
    • modestring“Default broken.”
    • rowsarray“Broken backlink rows, one per linking page.”
    • sitestring“Optional: your site's address.”
    • audit_idstring“Optional: a finished site audit, to match on page titles too.”
    • live_urlsarray“Optional: your live pages, instead of reading the sitemap.”
    • formatstring“Rule format, default redirects (Cloudflare Pages and Netlify _redirects).”
    • brandstring“Brand name to look for in mention pages.”
    • yoursarray“Your own referring domains.”
    • competitorsarray“Each competitor with its referring domains.”
    • mentionsarray“Pages that mention the brand.”
    • your_sitestring“Your site or brand name, e.g.”
    • sender_namestring“Name to sign with.”
    • prospectsarray
    • reasonstring“Why a disavow is considered.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • ai_visibilityreads or searches

    “Whether AI assistants can read, quote and recommend a site.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    10 inputs
    • modestring“Default check.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • sitestring“Your site, for example example.com.”
    • brandstring“Your brand name as people write it.”
    • competitorsarray
    • responsesarray
    • pagesarray
    • sourcestring“Where the citation counts come from.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • answer_readinessreads or searches

    “Whether a page answers the questions people ask AI and Google.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    8 inputs
    • modestring“Default questions.”
    • urlstring“Full address of the page.”
    • topicstring“The topic or main query, for example 'passport renewal'.”
    • questionsarray“The sub-questions an AI search engine would ask for the topic.”
    • competitorsarray“Optional: up to 2 pages that rank for the topic.”
    • questionstring“The question people ask, for example 'how long does shipping take to Germany'.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • get_fix_packon 1 other servercreates or changes datadescribed as changing data

    “Fixes ready to ship: as code, for a CMS through its MCP, as a pull request or at the edge.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    12 inputs
    • modestring“Default fixes.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • platformstring“html (default) for code to paste; wordpress, webflow, wix, shopify, storyblok, sanity, contentful, strapi, ghost or magento for a plan with the exact fields and”
    • frameworkstring“With platform git: the site's framework.”
    • altsarray“Step 2: the alt text per image src.”
    • failingarray“Metrics that fail for real users, if known.”
    • site_keystring“The site key from the plugin, wpk_...”
    • changesarray“Optional field and new value pairs.”
    • notestring“Optional reason shown to the site owner.”
    • change_idstring“Status of an earlier send.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • edge_workerdescribed as changing data

    “Fixes applied at the edge on the user's own Cloudflare, on any CMS.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default rules.”
    • audit_idstring“Id of a completed site audit (start_site_audit, then get_site_audit until complete).”
    • site_namestring“Brand name for title endings, for example 'Acme Shoes'.”
    • urlstring“A page of the app, for example https://app.example.com/pricing.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
Show 25 more tools
  • fix_logcreates or changes datadescribed as changing data

    “Record shipped fixes, keep them live and report on them.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    11 inputs
    • modestring“Default log.”
    • fix_log_idstring“Add to an existing log.”
    • fixesarray
    • shipped_atstring“Date the fixes went live, YYYY-MM-DD.”
    • webhookstring“Optional https URL (Slack, Discord, Zapier, n8n, a GitHub Action) that gets the restore code when a fix is undone.”
    • verifyboolean“Check the live pages now (4 pages per call).”
    • formatstring“status (default), a client report, or GA4 annotations (one per ship date) for the Admin API.”
    • monthstring“For the report: YYYY-MM.”
    • brandstring“For the report: your agency name for the header.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • request_recrawlon 1 other serverdescribed as changing data

    “Get changed pages recrawled.”

    Publisher declares: read-only no · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default recrawl.”
    • urlsarray“Changed pages on one site.”
    • indexnow_keystring“Optional IndexNow key that is live at /<key>.txt.”
    • keystring“The site's IndexNow key (8 to 128 letters, digits or dashes).”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • explain_googlereads or searches

    “Explain what Google Search Console and Bing Webmaster Tools report, and what to do.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    10 inputs
    • modestring“Default index_status.”
    • rowsarray
    • actionstring“The manual action as Search Console shows it.”
    • sample_urlsarray“Example URLs Google listed.”
    • sitestring“The site or Search Console property.”
    • issuesarray“Bing crawl or index issues.”
    • bing_queriesarray
    • google_queriesarray
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • check_keywordreads or searches

    “How pages target a keyword.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    8 inputs
    • modestring“Default focus.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • keywordstring“The search term the page should rank for, for example 'running shoes'.”
    • target_urlstring“The page that should rank for it.”
    • competing_urlsarray“Other pages of the same site that compete for the keyword.”
    • rowsarray“Optional Search Console rows for the keyword, to find the competing pages and their positions.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • accessibilityreads or searches

    “Accessibility for people and the European Accessibility Act.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    5 inputs
    • modestring“Default wcag.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • treeobject“Optional: an accessibility snapshot from your own browser (role, name, level, children), for example Puppeteer page.accessibility.snapshot().”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • localon 2 other serversreads or searches

    “Local search: the site, the Business Profile and the map.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    12 inputs
    • modestring“Default check.”
    • urlstring“The home page, a location page or the locations overview page.”
    • gbp_profileobject“Optional: the Google Business Profile of this location, from the user's GBP connector or typed by the user, to compare with the site.”
    • businessstring“Business name to sign with.”
    • contactstring“Where unhappy customers can reach you, e.g.”
    • reviewsarray
    • termsarray“Search terms from the Business Profile performance report.”
    • gridarray“Optional geo-grid rankings.”
    • pagesarray“The site's page URLs, e.g.”
    • citystring“Main city, left out when matching terms to pages.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • trackingreads or searches

    “Whether analytics and consent are set up right, and whether the numbers add up.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default ga4.”
    • urlstring“Full address of the page, for example https://example.com/.”
    • gscarray“Search Console clicks per page.”
    • ga4array“GA4 sessions per landing page, organic Google only.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • check_linkson 10 other serversreads or searches

    “Status of URLs and links.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default urls.”
    • urlsarray“Addresses to check.”
    • expectedarray“Optional expected final address for each URL, in the same order.”
    • urlstring“The page to check.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • web_vitalsreads or searches

    “Core Web Vitals from real Chrome users.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    5 inputs
    • modestring“Default now.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • change_datestring“Optional date a speed fix went live, YYYY-MM-DD.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • shareon 3 other serverssends messagesdescribed as changing data

    “Send results where the team works.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    6 inputs
    • modestring“Default link.”
    • urlstring“Full address, for example https://example.com/pricing.”
    • audit_idstring“A finished site audit from start_site_audit, to export the whole site.”
    • slack_webhook_urlstring“Optional https incoming webhook (Slack, Discord, Teams) to post the summary to.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • planon 13 other serverscalculates or converts

    “Plans for migrations, experiments and the team.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    16 inputs
    • modestring“Default redirects.”
    • old_urlsarray
    • old_sitestring“Old site address, to read its sitemap instead of old_urls.”
    • new_urlsarray
    • new_sitestring“New site address, to read its sitemap instead of new_urls.”
    • formatstring“Output format, default redirects (Cloudflare Pages and Netlify).”
    • urlsarray“Pages of one template.”
    • clicksarray“Optional clicks per page for a balanced split.”
    • fieldstring“What to change.”
    • patternstring“The new value with {title} or {description} as placeholders.”
    • start_datestring“Optional planned start, YYYY-MM-DD.”
    • fixesarray
    • weeksnumber“Weeks to plan, default 4.”
    • hoursobject“Hours per week per role, default 8 each.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • contenton 2 other serversgenerates content

    “What to write and how, in the site's own voice, from the pages that rank and the user's search data.”

    Publisher declares: read-only yes · destructive no · idempotent no · open-world yes

    17 inputs
    • modestring“Default brief.”
    • keywordstring“The search term the page should rank for.”
    • competitorsarray“Pages that rank for the term.”
    • urlstring“Optional: your existing page for this term.”
    • audit_idstring“Optional: a finished site audit, for internal link suggestions.”
    • rowsarray“Search Console rows by query and page.”
    • competitor_rowsarray“Optional keyword gap: competitors' organic keywords (Ahrefs organic-keywords or Semrush domain_organic for each competitor, or Semrush keyword gap rows).”
    • queriesarray“Search Console rows by query and page, for the site-wide check.”
    • urlsarray“The site's own best articles, ones that rank and that the owner likes.”
    • ideasarray“Topics without a page yet.”
    • per_weeknumber“Items per week, default 2.”
    • weeksnumber“Weeks to plan, default 8.”
    • startstring“First day, YYYY-MM-DD, default today.”
    • webhook_urlstring“Optional https Slack or Discord webhook for a Monday reminder; off stops it.”
    • htmlstring“The draft as HTML, title in <title> or <h1>.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • technicalreads or searches

    “Technical checks across pages and logs.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    12 inputs
    • modestring“Default hreflang.”
    • urlstring“Full address of one language version of the page.”
    • audit_idstring“Id of a completed site audit.”
    • urlsarray“Optional extra URLs, for example from server logs or Search Console.”
    • selectorstring“CSS selector, for example .price, h1 or link[rel=canonical].”
    • attributestring“With selector: read this attribute instead of the text, for example href or content.”
    • regexstring“A regular expression; the first group is returned if there is one, otherwise the whole match.”
    • jsonldstring“A JSON-LD path: the @type, then the properties, for example Product.offers.price or Article.author.name.”
    • logstring“Raw access log lines, one request per line.”
    • sitemap_urlsarray“Optional: the URLs from the site's sitemap, to find pages bots never crawl.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • llms_txton 2 other serversgenerates content

    “The llms.txt file for AI assistants.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    5 inputs
    • modestring“Default generate.”
    • urlstring“Home page of the site, for example https://example.com.”
    • textstring“Optional llms.txt content to validate instead of the live file.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • schemaon 4 other serversgenerates content

    “JSON-LD structured data for rich results.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default generate.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • typestring“Schema type, default auto.”
    • jsonldstring“The JSON-LD as text, with or without the <script> tag.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • robots_txton 1 other serverreads or searches

    “robots.txt for search and AI crawlers.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    7 inputs
    • modestring“Default test.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • user_agentsarray“Crawler names, for example Googlebot, GPTBot, ClaudeBot, PerplexityBot.”
    • robots_txtstring“Optional robots.txt content to test instead of the live file.”
    • policystring“Which AI crawlers to allow.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • “The XML sitemap.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    5 inputs
    • modestring“Default check.”
    • urlstring“The site's home page, or the sitemap URL itself.”
    • audit_idstring“A finished site audit.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • layouton 2 other serversreads or searches

    “What visitors and crawlers see on every screen size.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default render.”
    • urlstring“Full address of the page, for example https://example.com/pricing.”
    • resultsarray“One probe result per viewport, each with device set to phone, tablet or desktop.”
    • no_jsobject“Optional: the probe result with JavaScript turned off, for an exact comparison.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • internal_linksreads or searches

    “Internal links and link equity.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world no

    9 inputs
    • modestring“Default suggest.”
    • audit_idstring“Id of a completed site audit.”
    • target_urlstring“Page that should receive links.”
    • topicstring“Topic or main keyword of the target page.”
    • platformstring“Optional: also return the links ready to apply: a Cloudflare Worker that links the first mention on each page, a WordPress edit plan, or the edits for the code.”
    • phrasesarray“Optional: phrases to turn into the link, besides the anchor text, for example natural variants.”
    • important_urlsarray“Optional.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • compareon 64 other serversreads or searches

    “Compare pages side by side.”

    Publisher declares: read-only yes · destructive no · idempotent no · open-world yes

    12 inputs
    • modestring“Default pages.”
    • urlstring“Full address, for example https://example.com.”
    • competitorsarray“Competitor page addresses.”
    • keywordstring“Optional search term to compare keyword use.”
    • beforestring“HTML before the change.”
    • afterstring“HTML after the change.”
    • preview_urlstring“The deploy preview URL.”
    • production_urlstring“The live site.”
    • pathsarray“Paths like /pricing, default /.”
    • bypass_tokenstring“Vercel protection bypass secret.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • snippeton 1 other serverreads or searches

    “How a page looks in Google and when shared, measured in pixels the way Google truncates.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default search.”
    • urlstring“Page to read the current title and description from, when no title is given.”
    • titlestring“Proposed title tag text.”
    • descriptionstring“Proposed meta description.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • entityon 3 other serversreads or searches

    “How Google understands who is behind a site.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    4 inputs
    • modestring“Default graph.”
    • urlstring“Full address, for example https://example.com/blog/post.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • text_qualityreads or searches

    “Readability and correct language.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs
    • modestring“Default readability.”
    • urlstring“Your page.”
    • keywordstring“Optional: the search term, for context.”
    • competitorsarray“Optional: top organic results for the keyword.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • track_rankingscreates or changes datadescribed as changing data

    “Use for ongoing rank tracking without picking keywords by hand.”

    Publisher declares: read-only no · destructive no · idempotent no · open-world yes

    11 inputs
    • actionstring“run (default), status or stop.”
    • tracker_idstring“From the first run.”
    • sitestring“Your site.”
    • gsc_rowsarray“Search Console rows by query and page for the period.”
    • tracker_rowsarray“Ahrefs Rank Tracker or Semrush Position Tracking rows.”
    • conversionsarray“Optional GA4 key events or revenue per landing page.”
    • money_keywordsarray“Optional keywords you always want followed.”
    • fix_log_idstring“Optional fix log (log_fix) whose pages count as work done.”
    • webhook_urlstring“Optional https webhook for the changes (Slack and Discord work).”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”
  • prioritize_fixescalculates or converts

    “Use when Search Console, GA4, Ahrefs or Semrush data is available, also to explain a traffic drop (pass clicks_previous): ranks the fixes by the traffic or revenue they can win.”

    Publisher declares: read-only yes · destructive no · idempotent yes · open-world yes

    6 inputs, 1 required
    • pagesarrayrequired
    • sourcestring“Where the numbers come from.”
    • currencystring“Currency of revenue, for example EUR or USD.”
    • audit_idstring“Optional id of a finished site audit, so pages are not scanned again.”
    • memory_keystring“site_memory key, records this call.”
    • detailstring“brief = short summary.”

Each quoted sentence is the first sentence of the publisher’s own description. The kind of tool and the “changes data” mark are our AI model’s reading of that description, not something we tested: two differently worded runs had to agree, otherwise no label is shown, and nobody has checked them by hand. A tool without the “changes data” mark is described as only reading, searching or calculating, or the two runs did not agree. No tool was called. Read the publisher’s full description before relying on it. “Publisher declares” lists the hints the server itself sends with the tool (MCP annotations: read-only, destructive, idempotent, open-world); they are the publisher's claims, not checked by us. Inputs are the parameters in the tool's own input schema: name, declared type, whether it is required, and the first sentence of its description. Read 2026-10-23.

How well are its tools described?

Features #4 and #5

How clearly this server's own tool descriptions say what a tool does, and how consistent its tool list is. The first part is an AI model's yes/no reading of each description; the second part is counted. We do not turn it into a grade.

Descriptions

AI reading of each description

Says what the tool does
100% of 37 tools
Says what it returns
60% of 5 tools
States limits, defaults or errors
3% of 37 tools
Says when to use it
8% of 36 tools
Items covered per tool
1.3 of 4 on average

Counted from the listing

Parameters with a description
94% of 336
Tools with a description
100% of 37
Typical description length
397 characters

The tool set

Counted from the listing

Tools
37
Size of the list
about 19,400 tokens for an agent to load (characters ÷ 4)
Naming
20 of 37 names use snake_case

AI reading: easy to mix up

No pair found.

The AI items cover 37 of 37 tools: for a tool where two differently worded runs disagreed, that item is left out. They were not checked by hand, and no tool was called. “Easy to mix up” means two tools whose names or descriptions overlap without saying how they differ; the AI found none. We do not rate whether the tool set is complete or whether side effects are spelled out, because our AI reading of those was not reliable enough.

How do I add it to my client?

Config from the registry entry

From the remote endpoint (Streamable HTTP)

We connected to this URL on 2026-10-23 (a read-only session: no tool was called).

Add to CursorAn install link in the format Cursor documents, holding the Cursor config below.

Claude Desktop or claude.ai
Settings → Connectors → Add custom connector, then paste:
https://onpage.dev/mcp
Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json
{
  "mcpServers": {
    "onpage": {
      "url": "https://onpage.dev/mcp"
    }
  }
}
VS Code · .vscode/mcp.json
{
  "servers": {
    "onpage": {
      "type": "http",
      "url": "https://onpage.dev/mcp"
    }
  }
}
VS Code (command line) · Bash or zsh terminal (macOS, Linux)
code --add-mcp '{"name":"onpage","type":"http","url":"https://onpage.dev/mcp"}'
Claude Code
claude mcp add --transport http onpage https://onpage.dev/mcp
Try it in the MCP Inspector · runs on your machine, opens in your browser · Node 22.19+
npx @modelcontextprotocol/inspector@2.11.0 --server-url https://onpage.dev/mcp --transport http
  • The server runs on the operator's infrastructure; it may ask you to sign in when you first connect.
  • The MCP Inspector lists the server's tools, resources and prompts; a tool you call there runs for real.

Built from the server's registry entry with each client's documented format (checked 2026-10-14; the Cursor link and the VS Code command 2026-10-19; the MCP Inspector command 2026-10-21). Values in < > are yours to fill in; this page never contains a key. Where the server needs a setting the entry does not declare, it can still fail to start.

Does the registry listing match what we found?

Feature #6

The registry verifies a package once, when it is published, and does not re-check it. A difference below is about the listing, not a judgement of the publisher.

Registry saysWe foundResultSource · date
Remote endpoint onpage.dev/mcpSession openedmatchesour test · 2026-10-23
No credential declared as requiredOpened a session without any credentialmatchesour test · 2026-10-23
Repository github.com/seoonpage/seo-mcp-serverOpens publiclymatchesapi.github.com · 2026-10-22

Who made it?

Feature #7 · lineage

Facts about the publisher. We do not turn them into a trust score.

Namespace
dev.onpage
GitHub owner
a personal account (seoonpage)
Repository
github.com/seoonpage/seo-mcp-server
Stars
2
Repository age
0–30 days
Last push
0–30 days ago
Archived
no
Security policy
SECURITY.md

Source: the registry entry and api.github.com · 2026-10-22; security policy read from GitHub · 2026-10-23.

Publish this server? Run these checks against it yourself before release, from your own machine: a server the command starts, or your own server at its URL after a one-time proof that you control it: npx protocolprobe-selftest.

Choosing

Record checks

Public records · not a safety rating

5 of 5 record checks met · 4 do not apply

  • Not ranked by downloads: a remote server publishes no download figure
  • Not ranked by stars: 2 stars (ranked from 10)
  • MetRegistry entry is active and says how to run itActive, with a package or a remote address.
  • MetSource repository link opensThe linked GitHub repository is public.
  • MetRepository is not archivedNot archived.
  • MetCode pushed to the repository in the 90 days before our checkLast push 0-30 days before our check.
  • MetRepository publishes a security policy (SECURITY.md)SECURITY.md found.
  • Does not applyPackage names its licence with a standard (SPDX) identifierRemote server: it ships no package.
  • Does not applyThe version the registry lists can be installed and is not withdrawnRemote server: it ships no package.
  • Does not applynpm package carries build provenance (attestation)Remote server: it ships no package.
  • Does not applyNo known critical or high advisory in the package or its dependenciesRemote server: it ships no package.

Read from public records only: the registry entry, npm/PyPI, GitHub and advisory databases, checked 2026-10-22. No tool was called. Only “met” and “not met” are counted, so the total differs between servers; a check that does not apply or that we could not run is listed, never counted against it. It is not a safety rating. How each check works · Leaderboards

Common questions about dev.onpage/onpage

Answered from the data above

Is dev.onpage/onpage safe to install?

We do not rate servers as safe or unsafe. 5 of its 5 applicable record checks are met (facts from public records, each listed on this page). What the records show: Its source repository opens publicly. Its repository had a push in the last 90 days. 8 of its tools describe changing data (our AI model's reading of the descriptions). These are facts with their sources on this page, not a safety guarantee, and we did not run its tools.

Does dev.onpage/onpage need an API key or sign-in?

It opened a session without any credential on 2026-10-23. The registry entry declares no required credential; no declaration is not a guarantee.

Has dev.onpage/onpage been security tested?

Partly. 4 of the 15 checks that apply to it were exercised. We connected and read what the server declares, but did not call its tools: ProtocolProbe calls no server's tools for anything it publishes. This is our choice, not a block by the server. No security verdict is published before verification.

What can dev.onpage/onpage do?

It lists 37 tools. In our AI model's reading of their descriptions (two runs had to agree, nobody checked it by hand), they include tools that read or search, create or change data, send messages, generate content and calculate or convert. We did not call any tool, so this describes the text, not the behaviour.

Can dev.onpage/onpage change or delete data?

8 of its tools say in their description that they create, edit, delete, send or run something (our AI model's reading). We did not call any tool, so we cannot say what actually happens.

Does dev.onpage/onpage publish a security policy?

Yes: its repository has a public security policy (github.com/seoonpage/seo-mcp-server/blob/HEAD/SECURITY.md). That is the publisher's statement, not permission for us to test the server, and we call none of its tools.

Where is the source code of dev.onpage/onpage?

In github.com/seoonpage/seo-mcp-server, which opens publicly.

Found this page useful?

Anonymous · no sign-in

A quick, anonymous reaction — no account, no email. One per kind from your browser. The tally updates when the page is next refreshed, and it is only a rough count, never a safety rating or a measured number of people.

Similar servers

Same topic · AI-read

Active servers whose topic is also “commerce-and-marketing” and that have at least one tool of the same kind; most kinds in common first, then most GitHub stars. The topic and the tool kinds are an AI model's reading of the publishers' descriptions, not checked by hand. Similar is not a recommendation.

Compare with another server

Side by side: registry entry, our read-only session, the tools and the 18 classification fields. Same values as each page; no score.

Security testing

What did we test, and what did we leave out?

18 checks · features #1, #2

Not probed (we call no server's tools)

We connected and read what the server declares, but did not call its tools: ProtocolProbe calls no server's tools for anything it publishes. This is our choice, not a block by the server. No security score is given; a check we did not run is never counted as passed.

The 18 checks at a glanceour test · 2026-10-23
  1. Inventory: exercised
  2. Hidden instructions: exercised
  3. Real execution: not run · our policy
  4. Secret leak: not run · nothing to check it against
  5. Internal addresses: not run · our policy
  6. Unconfirmed changes: not run · our policy
  7. Bad input: not run · our policy
  8. Model requests: not run · nothing to check it against
  9. Sensitive questions: not run · nothing to check it against
  10. Folder boundary: not run · our policy
  11. Log leaks: not run · nothing to check it against
  12. Hidden content: exercised
  13. Fake assistant turns: exercised
  14. Token passthrough: not applicable
  15. Token audience: not applicable
  16. Sign-in redirect: not run · our policy
  17. Consent handling: not testable from outside
  18. Sign-in metadata: not applicable

4 exercised11 not run (reason given)3 not applicable

Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 4 of the 15 checks that apply to it were exercised. We do not publish security-check outcomes for named servers.

Exercised · 4
  • 1Inventory
    tool-list
    Reads the declared tools, resources and prompts.exercised
  • 2Hidden instructions
    description-poisoning
    Looks for hidden instructions in tool descriptions.exercised
  • 12Hidden content
    audience-hiding
    Checks resources that hide content from the user.exercised
  • 13Fake assistant turns
    fake-assistant-turn
    Checks prompts that pose as the assistant's own words.exercised
Not run, with the reason · 11
  • 3Real execution
    real-execution
    Calls a tool and checks what really happens.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 4Secret leak
    canary-leak
    Plants a fake secret and checks whether it leaks.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 5Internal addresses
    ssrf
    Checks whether a tool can be steered to internal addresses.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 6Unconfirmed changes
    write-without-confirmation
    Checks whether tools that change data act without asking.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 7Bad input
    error-handling
    Sends bad input and watches how the server answers.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 8Model requests
    sampling
    Checks whether the server asks the client's model to act for it.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 9Sensitive questions
    elicitation-sensitive-data
    Checks whether the server asks users for sensitive data.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 10Folder boundary
    root-boundary
    Checks whether the server reaches outside the folders it was given.This check calls the server's tools. ProtocolProbe calls no server's tools for anything it publishes; an operator can run this check on their own server with our self-test command.not run · our policy
  • 11Log leaks
    logging-side-channel
    Checks whether log messages carry data they should not.This check needs at least one successful tool call to have something to check, and no tool was called.not run · nothing to check it against
  • 16Sign-in redirect
    open-redirect
    Checks the sign-in redirect for abuse.Testing the sign-in redirect means sending probes to the operator's sign-in service, which we do not do.not run · our policy
  • 17Consent handling
    confused-deputy
    Checks consent handling when one service acts for another.Depends on the operator's own consent screen, which differs per server and cannot be tested from outside.not testable from outside
Does not apply to this server · 3
  • 14Token passthrough
    token-passthrough
    Checks whether the server forwards a user's token to other services.The server opened a session without sign-in, so there is no token flow to check.not applicable
  • 15Token audience
    token-audience-validation
    Checks whether tokens meant for another service are accepted.The server opened a session without sign-in, so there is no token flow to check.not applicable
  • 18Sign-in metadata
    oauth-url-scheme
    Checks the published sign-in metadata for unsafe URLs.No sign-in (OAuth) metadata is published, so there are no sign-in addresses to check.not applicable

Source: our own test, 2026-10-23, mcp-runtime-engine@0.1.0. Which checks count and why follows our published scoring model.

What happened during the test?

Feature #8

The steps in order, as the test record holds them.

  1. 0 msStarted a read-only session with the server's remote endpoint
  2. 390 msConnected after 0 redirects. No credential was sent or needed.
  3. Read the inventory: 37 tools, 3 resources, 14 prompts.
  4. 1,993 msFinished: 4 checks exercised.

Reference

How is it classified?

18 fields

One value per field, each with its source. Fields written by AI models are marked. A field with no value says why.

TopicAI-classified
AI-classified · 2026-10-23
Pricing modelAI-classified
no value
No value: the AI answer was held back because the quoted text did not clearly support it.
Programming language
api.github.com · 2026-10-23
Hosting type
registry · 2026-10-23
MCP capability
prompts, resources, tools
our test · 2026-10-23
Transport
streamable HTTP
registry · 2026-10-23
Required credentials
none declared
registry · no declaration is not a guarantee
Package registry
does not apply
remote-only server: no package is shipped, so there is no package registry
Freshness
0–30 days
registry updatedAt · 2026-10-23
Lifecycle status
registry · 2026-10-23
License class
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Integrity hash
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Signature / provenance
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Dependency advisories
does not apply
ships no package, so there are no dependencies to audit
Popularity
does not apply
remote-only server: ships no package, so there is nothing to look up in a package registry
Publisher signals
owner: a personal account · repository age: 0–30 days · stars: 0–9
api.github.com · 2026-10-22
Maintenance
api.github.com · 2026-10-22
Environment
the publisher's infrastructure
where it runs, from the hosting type

“Not stated” means the source did not state it; “does not apply” means it does not apply to this kind of server; “our limit” means our own lookup failed. A linked value opens the directory filtered to the same value.

Cite or correct this page

Sources and corrections

Suggested citation

ProtocolProbe. “dev.onpage/onpage: MCP server record.” Data checked 2026-10-23. https://protocolprobe.com/mcp/servers/dev.onpage/onpage

Figures are valid for the date shown. Our facts on this page are CC BY 4.0: reuse them with a link and the check date. Quoted text (the publisher’s descriptions, website quotes, tool names) is not ours to license.

As JSON: this record in the API · API documentation.

Badge for your README

ProtocolProbe: 5 of 5 record checks met

[![ProtocolProbe](https://protocolprobe.com/api/v1/badge/dev.onpage/onpage)](https://protocolprobe.com/mcp/servers/dev.onpage/onpage)

It shows this server's record-check count: facts from public records, no tool called. It is not a security rating or a pass. It links here and updates after each data reload.

Something wrong, or is this yours?

If a fact here is wrong, tell us and we will re-check it. If you operate this server, you can run our checks on it yourself with the free self-test command; we call no server’s tools ourselves for anything shown here.

Write to hello@protocolprobe.com · corrections log · methodology