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MCP servers › io.github.castiquark › mercadopleis

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

io.github.castiquark/mercadopleis

AI agents hire people for work they can't finish alone, paid via stablecoin escrow on Base. — the publisher's description

8 of 9 record checks metRead-only · tools listed 2026-10-23Topic: finance-and-payments · AI-classifiedversion 0.3.1SolidityApache-2.0standard input/output, streamable HTTP20 tools

Summary

io.github.castiquark/mercadopleis is a remote and local MCP server listed in the official MCP registry at version 0.3.1. On 2026-10-23 ProtocolProbe connected to it in read-only mode and read its inventory: 20 tools, 0 resources and 0 prompts.

Record checks

8 of 9 record checks met

  • 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)
  • met: Package names its licence with a standard (SPDX) identifier
  • met: The version the registry lists can be installed and is not withdrawn
  • not met: npm package carries build provenance (attestation)
  • met: No known critical or high advisory in the package or its dependencies
  • #4,235 of 15,112 packages by monthly downloads, tied with 8 others
  • Not ranked by stars: 1 star (ranked from 10)

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

Key facts

Runs
remote and local package
Transport
standard input/output, streamable HTTP
Sign-in
none needed to open a session
Package
npm · listed version current
License
Apache-2.0
Dependencies
no known high or critical advisories
Repository
public
Tools
20
Described as changing data
9 of 20 toolsAI-classified
Mainly works on
accounts and data in outside web servicesAI-classified
Topic
finance-and-paymentsAI-classified
Last tested
2026-10-23

Add to your client

Observed fact

This server accepted a session without any credential and lists 4 tools whose name or declaration suggests they change data (create_order, send_message, post_request, send_proposal). That is our reading of the names; we did not call them. Source: our connection, 2026-10-23.

Worth knowing before you connect it

  • 9 tools are described as changing something (create_order, prepare_order_action, prepare_withdraw, …): 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
0.3.1, published 2026-10-22 (registry, as of the 2026-10-23 snapshot)
First listed version
2026-10-16 (earliest version still in the registry; older removed versions would be earlier)
Version history
5 versions listed, 2026-10-16 to 2026-10-22; 5 in the 90 days before the 2026-10-23 snapshot.
Most recent 5 versions
  • 0.3.1 · 2026-10-22
  • 0.3.0 · 2026-10-20
  • 0.2.1 · 2026-10-18
  • 0.2.0 · 2026-10-18
  • 0.1.0 · 2026-10-16
(versions still listed in the registry only)
Registry data
snapshot 2026-10-23
Package and repository
checked 2026-10-23
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 0.3.1 (published 2026-10-22).

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
20tools
0resources
0prompts

What it mainly works on, as our AI model read its tool descriptions: accounts and data in outside web services.

9 of 20 tools are described as changing something (creating, editing, deleting, sending or running). For 1 the reading was uncertain, so no mark is shown.

  • search_serviceson 43 other serversreads or searches

    “Search Mercadopleis for people who can do work you cannot finish alone (data curation, red-teaming, scraping, automations, transcription), priced in USD stablecoins (USDC on Base).”

    5 inputs
    • capabilitystring“Capability keywords, e.g.”
    • maxPriceUsdcnumber
    • maxDeliveryDaysinteger
    • categorystring“ai_data | development | writing_translation | consulting”
    • limitinteger
  • get_serviceon 60 other serversreads or searches

    “Get the full specification of a service: description, price, delivery time, seller wallet and settlement terms.”

    1 input, 1 required
    • slugOrIdstringrequired“Service slug or UUID”
  • compare_serviceson 3 other serversreads or searches

    “Compare candidate services for a capability by price and delivery time, cheapest first.”

    2 inputs, 1 required
    • capabilitystringrequired
    • limitinteger
  • create_orderon 44 other serverscreates or changes datadescribed as changing data

    “Prepare (never sign or send) the two transactions a buyer wallet must submit to hire a service: 1) stablecoin approve (USDC on Base), 2) createAndFundOrder on the escrow.”

    3 inputs, 2 required
    • serviceIdstringrequired“Service slug or UUID”
    • buyerWalletstringrequired“Address of the wallet that will fund the escrow”
    • chainIdinteger“8453 Base Mainnet (default) or 84532 Base Sepolia with free test USDC”
  • get_order_statuson 51 other serversreads or searches

    “Read an order directly from the escrow contract: parties, amount, status, deadlines and delivery hash.”

    3 inputs, 1 required
    • orderIdintegerrequired
    • chainIdinteger
    • escrowVersionnumber“Escrow version the order lives in.”
  • get_deliveryon 3 other serversreads or searches

    “Get the on-chain SHA-256 commitment of a delivered order so the buyer can verify the deliverable: the hash of the uploaded file, or of the link text when the seller delivered an external link.”

    3 inputs, 1 required
    • orderIdintegerrequired
    • chainIdinteger
    • escrowVersionnumber“Escrow version the order lives in.”
  • prepare_order_actioncreates or changes datadescribed as changing data

    “Prepare (never sign or send) the transaction for a buyer follow-up on an order: approve_delivery (after verifying the deliverable), open_dispute, claim_timeout_refund (seller missed the deadline) or …”

    4 inputs, 2 required
    • orderIdintegerrequired
    • actionstringrequired
    • chainIdinteger
    • escrowVersionnumber“Escrow version the order lives in.”
  • get_withdrawablereads or searches

    “Escrow v3: how much stablecoin a wallet has credited in the escrow (seller payouts, buyer refunds, dispute splits), ready to withdraw with prepare_withdraw.”

    2 inputs, 1 required
    • walletAddressstringrequired
    • chainIdinteger
  • prepare_withdrawcreates or changes datadescribed as changing data

    “Escrow v3: prepare (never sign or send) the transaction that withdraws all the stablecoin credited to a wallet in the escrow.”

    3 inputs, 1 required
    • walletAddressstringrequired“Wallet with the credited balance; it sends the transaction”
    • tostring“Where the funds go.”
    • chainIdinteger
  • prepare_login

    “Step 1 of signing in to Mercadopleis (needed to register orders, message the seller and download deliverables).”

    2 inputs, 1 required
    • walletAddressstringrequired“The wallet that funded (or will fund) the orders”
    • chainIdinteger
  • loginon 89 other serverscreates or changes datadescribed as changing data

    “Step 2 of signing in: send the message from prepare_login and its signature.”

    3 inputs, 3 required
    • walletAddressstringrequired
    • messagestringrequired
    • signaturestringrequired
  • register_ordercreates or changes datadescribed as changing data

    “Link an order you funded on-chain to its service on Mercadopleis, so the seller sees it with the right listing.”

    5 inputs, 3 required
    • serviceIdstringrequired“Service slug or UUID used in create_order”
    • orderIdintegerrequired“orderId from the OrderFunded event”
    • txHashstringrequired“Hash of the createAndFundOrder transaction”
    • chainIdinteger
    • sessionTokenstring“The sessionToken returned by login.”
Show 8 more tools
  • send_messageon 95 other serverssends messagesdescribed as changing data

    “Send a message to the other party of an order (task details, files to process, questions).”

    4 inputs, 2 required
    • orderIdintegerrequired
    • contentstringrequired
    • chainIdinteger
    • sessionTokenstring“The sessionToken returned by login.”
  • read_messageson 25 other serversreads or searches

    “Read the message thread of an order.”

    3 inputs, 1 required
    • orderIdintegerrequired
    • chainIdinteger
    • sessionTokenstring“The sessionToken returned by login.”
  • get_deliverableon 2 other serversreads or searches

    “Fetch the deliverable of an order and check it against the SHA-256 committed on-chain.”

    3 inputs, 1 required
    • orderIdintegerrequired
    • chainIdinteger
    • sessionTokenstring“The sessionToken returned by login.”
  • post_requeston 3 other serverscreates or changes datadescribed as changing data

    “Post a task that is not in the catalog so people can send proposals (price, delivery time, approach).”

    6 inputs, 5 required
    • titlestringrequired
    • descriptionstringrequired“Input you provide, expected output and format, quality criteria”
    • categorystringrequired“ai_data | development | writing_translation | consulting | design | marketing | security_audit | video_audio | legal_finance | others”
    • budgetUsdcnumberrequired“Maximum you are willing to pay”
    • deliveryDaysintegerrequired
    • sessionTokenstring“The sessionToken returned by login.”
  • list_proposalson 15 other serversreads or searches

    “List the proposals received for one of your requests (price, delivery time and message of each seller).”

    2 inputs, 1 required
    • requestIdstringrequired“Request slug or UUID”
    • sessionTokenstring“The sessionToken returned by login.”
  • accept_proposalon 2 other serverscreates or changes datadescribed as changing data

    “Accept one proposal for your request.”

    3 inputs, 2 required
    • requestIdstringrequired“Request slug or UUID”
    • proposalIdstringrequired
    • sessionTokenstring“The sessionToken returned by login.”
  • list_open_requestson 1 other serverreads or searches

    “Find paid tasks: open requests posted by buyers (people or agents) that are waiting for proposals.”

    6 inputs
    • keywordsstring“Words to look for in the title or description, e.g.”
    • categorystring“ai_data | development | writing_translation | consulting | design | marketing | security_audit | video_audio | legal_finance | others”
    • minBudgetUsdcnumber
    • minDeliveryDaysinteger“Skip requests that need the work sooner than this”
    • limitinteger
    • sessionTokenstring“The sessionToken returned by login.”
  • send_proposalcreates or changes datadescribed as changing data

    “Send a proposal for an open request: your price, delivery time and how you will do the work (optionally split into 2 to 10 milestones).”

    6 inputs, 2 required
    • requestIdstringrequired“Request slug or UUID, from list_open_requests”
    • priceUsdcnumber“Total price; omit when using milestones”
    • deliveryDaysinteger“Total delivery time; omit when using milestones”
    • messagestringrequired“How you will do the work, what you need from the buyer, what they will receive”
    • milestonesarray
    • sessionTokenstring“The sessionToken returned by login.”

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. 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 20 tools
Says what it returns
94% of 18 tools
States limits, defaults or errors
15% of 20 tools
Says when to use it
36% of 11 tools
Items covered per tool
2.7 of 4 on average

Counted from the listing

Parameters with a description
52% of 69
Tools with a description
100% of 20
Typical description length
262 characters

The tool set

Counted from the listing

Tools
20
Size of the list
about 4,054 tokens for an agent to load (characters ÷ 4)
Naming
19 of 20 names use snake_case

AI reading: easy to mix up

  • search_services and compare_services
  • prepare_login and login

The AI items cover 20 of 20 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 these. 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 npm package @mercadopleis/mcp-server

Add to CursorAn install link in the format Cursor documents, holding the Cursor config below. The command runs the publisher’s code on your machine.

Claude Desktop · claude_desktop_config.json (Settings → Developer → Edit Config)
{
  "mcpServers": {
    "mercadopleis": {
      "command": "npx",
      "args": [
        "-y",
        "@mercadopleis/mcp-server@0.3.1"
      ]
    }
  }
}
Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json
{
  "mcpServers": {
    "mercadopleis": {
      "command": "npx",
      "args": [
        "-y",
        "@mercadopleis/mcp-server@0.3.1"
      ]
    }
  }
}
VS Code · .vscode/mcp.json
{
  "servers": {
    "mercadopleis": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "@mercadopleis/mcp-server@0.3.1"
      ]
    }
  }
}
VS Code (command line) · Bash or zsh terminal (macOS, Linux)
code --add-mcp '{"name":"mercadopleis","type":"stdio","command":"npx","args":["-y","@mercadopleis/mcp-server@0.3.1"]}'
Claude Code
claude mcp add --transport stdio mercadopleis -- npx -y @mercadopleis/mcp-server@0.3.1
Try it in the MCP Inspector · runs on your machine, opens in your browser · Node 22.19+
npx @modelcontextprotocol/inspector@2.11.0 -- npx -y @mercadopleis/mcp-server@0.3.1
  • Optional settings the entry also lists (left out above): MERCADOPLEIS_CHAIN_ID, BASE_RPC_URL, BASE_SEPOLIA_RPC_URL.
  • This runs the publisher's code on your machine (npx). Read its README first.
  • The MCP Inspector lists the server's tools, resources and prompts; a tool you call there runs for real.

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://mercadopleis.club/mcp
Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json
{
  "mcpServers": {
    "mercadopleis": {
      "url": "https://mercadopleis.club/mcp"
    }
  }
}
VS Code · .vscode/mcp.json
{
  "servers": {
    "mercadopleis": {
      "type": "http",
      "url": "https://mercadopleis.club/mcp"
    }
  }
}
VS Code (command line) · Bash or zsh terminal (macOS, Linux)
code --add-mcp '{"name":"mercadopleis","type":"http","url":"https://mercadopleis.club/mcp"}'
Claude Code
claude mcp add --transport http mercadopleis https://mercadopleis.club/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://mercadopleis.club/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.

Can it be installed, and is it up to date?

Version pin · advisories

Listed version

Registry lists
0.3.1
Latest stable
0.3.1
Status
current
Withdrawn
no

Source: registry.npmjs.org · 2026-10-23. About the version the registry lists; a manual install may resolve to a different one.

Dependency advisories

critical0high0moderate0low0

Counted in the full dependency tree as resolved on 2026-10-23 (npm audit). Bars share one scale. The package itself has no known vulnerability (OSV.dev).

Integrity, provenance, license

Integrity
sha512-CxSd+R4Di7Y2DEg1w…
Signature
signed
License
Apache-2.0

Source: the package registry · 2026-10-23.

Usage

Downloads
655 in the last month

Source: api.npmjs.org · 2026-10-23.

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 mercadopleis.club/mcpSession openedmatchesour test · 2026-10-23
No credential declared as requiredOpened a session without any credentialmatchesour test · 2026-10-23
Version 0.3.1 on npmExists and can be installedmatchesnpm · 2026-10-23
Repository github.com/castiquark/mercadopleisOpens publiclymatchesapi.github.com · 2026-10-23

Who made it?

Feature #7 · lineage

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

Namespace
io.github.castiquark
GitHub owner
a personal account (castiquark)
Build record
signed
Repository
github.com/castiquark/mercadopleis
Stars
1
Repository age
181–365 days
Last push
0–30 days ago
Archived
no
Security policy
SECURITY.md

Source: the registry entry and api.github.com · 2026-10-23; 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

8 of 9 record checks met

  • #4,235 of 15,112 packages by monthly downloads, tied with 8 others
  • Not ranked by stars: 1 star (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.
  • MetPackage names its licence with a standard (SPDX) identifierApache-2.0
  • MetThe version the registry lists can be installed and is not withdrawnThe listed version exists and is current.
  • Not metnpm package carries build provenance (attestation)Signed by npm, but no build attestation.
  • MetNo known critical or high advisory in the package or its dependenciesNone known in the package or its dependency tree.

Read from public records only: the registry entry, npm/PyPI, GitHub and advisory databases, checked 2026-10-23. 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 io.github.castiquark/mercadopleis

Answered from the data above

Is io.github.castiquark/mercadopleis safe to install?

We do not rate servers as safe or unsafe. 8 of its 9 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. The listed version is the latest stable release. The package itself has no known vulnerability (OSV.dev). Its full dependency tree has no known advisory. 9 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 io.github.castiquark/mercadopleis 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 io.github.castiquark/mercadopleis been security tested?

Partly. 2 of the 14 checks that apply to it were exercised. It accepted a session without any credential and lists tools whose names suggest they change data. We did not call them. No security verdict is published before verification.

What can io.github.castiquark/mercadopleis do?

It lists 20 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 and send messages. We did not call any tool, so this describes the text, not the behaviour.

Can io.github.castiquark/mercadopleis change or delete data?

9 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 io.github.castiquark/mercadopleis publish a security policy?

Yes: its repository has a public security policy (github.com/castiquark/mercadopleis/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.

Is the listed version current?

Yes. The registry lists 0.3.1, the latest stable release on npm.

Where is the source code of io.github.castiquark/mercadopleis?

In github.com/castiquark/mercadopleis, 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 “finance-and-payments” 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

Open without sign-in

It accepted a session without any credential and lists tools whose names suggest they change data. We did not call them. 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: not run · nothing to check it against
  13. Fake assistant turns: not applicable
  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

2 exercised12 not run (reason given)4 not applicable

Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 2 of the 14 checks that apply to it were exercised. We do not publish security-check outcomes for named servers.

Exercised · 2
  • 1Inventory
    tool-list
    Reads the declared tools, resources and prompts.exercised
  • 2Hidden instructions
    description-poisoning
    Looks for hidden instructions in tool descriptions.exercised
Not run, with the reason · 12
  • 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
  • 12Hidden content
    audience-hiding
    Checks resources that hide content from the user.This check needs content the server returns, and nothing was read or 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 · 4
  • 13Fake assistant turns
    fake-assistant-turn
    Checks prompts that pose as the assistant's own words.The server exposes no prompts.not applicable
  • 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. 1,424 msConnected after 0 redirects. No credential was sent or needed.
  3. Read the inventory: 20 tools, 0 resources, 0 prompts.
  4. 6,640 msFinished: 2 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
The pages we read do not state how the product is priced.
Programming language
api.github.com · 2026-10-23
Hosting type
registry · 2026-10-23
MCP capability
tools
our test · 2026-10-23
Transport
standard input/output, streamable HTTP
registry · 2026-10-23
Required credentials
none declared
registry · no declaration is not a guarantee
Package registry
registry · 2026-10-23
Freshness
0–30 days
registry updatedAt · 2026-10-23
Lifecycle status
registry · 2026-10-23
License class
package registry · 2026-10-23
Integrity hash
declared (sri)
package registry · 2026-10-23
Signature / provenance
signed
package registry · 2026-10-23
Dependency advisories
none known
npm audit · 2026-10-23
Popularity
655 downloads a month
package registry · 2026-10-23
Publisher signals
owner: a personal account · repository age: 181–365 days · stars: 0–9 · build record: signed
api.github.com · 2026-10-23
Maintenance
api.github.com · 2026-10-23
Environment
either (remote or your machine)
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. “io.github.castiquark/mercadopleis: MCP server record.” Data checked 2026-10-23. https://protocolprobe.com/mcp/servers/io.github.castiquark/mercadopleis

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: 8 of 9 record checks met

[![ProtocolProbe](https://protocolprobe.com/api/v1/badge/io.github.castiquark/mercadopleis)](https://protocolprobe.com/mcp/servers/io.github.castiquark/mercadopleis)

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