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MCP servers › io.usefulapi › smaregi

MCP server · registry snapshot 2026-10-27 · last tested 2026-10-27

io.usefulapi/smaregi

Smaregi MCP by usefulapi — the publisher's title

by usefulapi.io · domain (the registry's namespace rule)repository owner on GitHub: m190 (personal account)Source ↗Website ↗

Read Smaregi stores, products, customers, stock and transactions; manage customers, products, stock. — the publisher's description

4 of 4 record checks metRead-only · tools listed 2026-10-27version 1.2.0JavaScriptstreamable HTTP20 tools

Summary

io.usefulapi/smaregi is a remote MCP server listed in the official MCP registry at version 1.2.0, under the namespace of the domain usefulapi.io. Its linked repository is github.com/m190/usefulapi-mcp; GitHub reports its owner as m190, a personal account. On 2026-10-27 ProtocolProbe connected to it in read-only mode and read its inventory: 20 tools, 0 resources and 1 prompt.

Record checks

4 of 4 record checks met · 4 do not apply · 1 not checked

  • 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
  • not checked: 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  • not applicable: The version the registry lists can be installed and is not withdrawn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: 0 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
Your own values
none declared (not a guarantee)
Sign-in
none needed to open a session
Repository
public
Tools
20
Last tested
2026-10-27

Tool list size

15,319 tokens on Claude Opus 5.5

Added to every request that loads this server's tools (20 tools). Counted with Anthropic's token counter on 2026-10-27, from the tool list we read on 2026-10-27. Median across 23,424 counted servers: 2,725 tokens. How it is counted

How a client gets in

Connects without signing in

Read from the server's public metadata on 2026-10-27 (smaregi.usefulapi.io), in our read-only connection; no tool was called. It may have changed since. How it is read

Tool list at the three APIs

Not sent yet for this version (1.2.0).

Add to your client

Observed fact

This server accepted a session without any credential and lists 6 tools whose name or declaration suggests they change data (smaregi_create_customer, smaregi_update_customer, smaregi_create_product, smaregi_update_product, smaregi_set_stock and 1 more). That is our reading of the names; we did not call them. Source: our connection, 2026-10-27.

How fresh this is

Live-tested
yes, a real session (not a text-only review)
Last tested
2026-10-27
Mode
read-only (no tool calls)
Latest version
1.2.0, published 2026-10-27 (registry, as of the 2026-10-27 snapshot)
First listed version
2026-10-25 (earliest version still in the registry; older removed versions would be earlier)
Version history
3 versions listed, 2026-10-25 to 2026-10-27; 3 in the 90 days before the 2026-10-27 snapshot.
Most recent 3 versions
  • 1.2.0 · 2026-10-27
  • 1.1.0 · 2026-10-25
  • 1.0.0 · 2026-10-25
(versions still listed in the registry only)
Registry data
snapshot 2026-10-27
Package and repository
checked 2026-10-27
Engine
mcp-runtime-engine@0.1.0 · sdk@1.32.0

Dead or stale signals

None found in the records we hold

Looked for and not found: deprecated in the registry; repository link does not open; repository archived; no push in over 365 days. Does not apply: listed version cannot be installed or is withdrawn. Each line is a dated fact from a public record. It does not say whether the server still works, and a record can change after the date shown.

Changes since the last refresh

Version 1.1.0 (published 2026-10-25) → 1.2.0 (published 2026-10-27), between the registry lists of 2026-10-26 and 2026-10-27.

The publisher published no GitHub release note for this version: its repository publishes no GitHub releases.

Source: the official MCP Registry list on 2026-10-26 and on 2026-10-27; release notes from the GitHub Releases API, checked 2026-10-27.

What it is

What does this server offer?

Observed inventory
20tools
0resources
1prompts

None of its 20 tools are described as changing anything. For 20 the reading was uncertain, so no mark is shown.

  • smaregi_list_stores

    “List the stores (shops) of the Smaregi contract: id, code, name, address, phone.”

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

    4 inputs
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
  • smaregi_get_store

    “One store by id.”

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

    2 inputs, 1 required
    • store_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
  • smaregi_list_staffs

    “List staff members: id, code, name, role, e-mail.”

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

    4 inputs
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
  • smaregi_get_staff

    “One staff member by id.”

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

    2 inputs, 1 required
    • staff_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
  • smaregi_list_categories

    “List product categories (departments): id, code, name, parent, level.”

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

    4 inputs
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
  • smaregi_get_category

    “One product category by id.”

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

    2 inputs, 1 required
    • category_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
  • smaregi_list_products

    “List products with id, category, code, name, price, cost and update time.”

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

    11 inputs
    • category_idstring or integer“Only products of this category id.”
    • product_codestring“Only the product with this exact product code.”
    • group_codestring“Only products with this group code.”
    • supplier_product_nostring“Only products with this supplier product number.”
    • display_flagstring“1 = shown on the register, 0 = hidden.”
    • updated_fromstring“Only products changed at or after this date-time (ISO 8601 with timezone).”
    • updated_tostring“Only products changed at or before this date-time (the range may span 31 days at most).”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
  • smaregi_get_product

    “One product by id, optionally with store prices, bundled items, store assignments, reserved stock, attribute items and order settings.”

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

    7 inputs, 1 required
    • product_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • with_pricesboolean“Add the store/period-specific prices.”
    • with_storesboolean“Add the store assignments.”
    • with_reserve_itemsboolean“Add the free-form reserve items.”
    • with_inventory_reservationsboolean“Add the inventory reservations.”
    • with_attribute_itemsboolean“Add the attribute items.”
    • with_order_settingboolean“Add the ordering settings.”
  • smaregi_list_customers

    “List customers (members): id, code, number, name, phone, e-mail, address.”

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

    10 inputs
    • customer_codestring“Only the customer with this exact customer code.”
    • customer_nostring“Only the customer with this member number.”
    • customer_id_fromstring or integer“Only customers with an id at or above this.”
    • customer_id_tostring or integer“Only customers with an id at or below this.”
    • updated_fromstring“Only customers changed at or after this date-time (ISO 8601 with timezone).”
    • updated_tostring“Only customers changed at or before this date-time (31 days at most).”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
  • smaregi_get_customer

    “One customer by id, optionally with the contract's custom fields.”

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

    3 inputs, 1 required
    • customer_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • with_custom_fieldsboolean“Add the custom field values.”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
  • smaregi_list_stock

    “List stock levels per store and product (stockAmount, reserved amount).”

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

    8 inputs
    • store_idstring or integer“Only this store id.”
    • product_idstring or integer“Only this product id.”
    • updated_fromstring“Only stock changed at or after this date-time (give updated_to as well).”
    • updated_tostring“Only stock changed at or before this date-time (give updated_from as well).”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
  • smaregi_list_stock_changes

    “The stock change history of one product in one store: date, amount, division (sale, purchase, transfer, adjustment...).”

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

    8 inputs, 2 required
    • product_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • store_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • target_datestring“Only changes of this target date, as Smaregi formats it (yyyy-mm-dd).”
    • stock_divisionstring“Only changes of this stock division code.”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
Show 8 more tools
  • smaregi_list_transactions

    “List sales transactions (receipts) in a time window of at most 31 days: id, date-time, division (1 = normal sale, 2 = deposit, 3 = withdrawal...), store, terminal, customer, totals.”

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

    11 inputs, 2 required
    • fromstringrequired“Start of the window: transaction date-time (when Smaregi received it), ISO 8601 with timezone.”
    • tostringrequired“End of the window (at most 31 days after from).”
    • store_idstring or integer“Only this store id.”
    • customer_codestring“Only this customer code.”
    • transaction_head_divisionstring“Transaction division: 1 normal sale, 2 deposit, 3 withdrawal, 4 advance payment, 5 advance refund, 6 points added, 7 points deducted, 8 points expired, 9 coupo…”
    • transaction_uuidstring“Only the transaction with this receipt number.”
    • with_detailsstring“Add the line items: none (default), summary or all.”
    • fieldsstring“Comma-separated top-level field names to return (e.g.”
    • sortstring“Sort order: comma-separated field names, ':desc' for descending (e.g.”
    • pageinteger“Page number, from 1 (default 1).”
    • limitinteger“Results per page, 1-500 (default 50).”
  • smaregi_get_transaction

    “One transaction (receipt) by its transaction id (transactionHeadId), optionally with line items, discounts and payments.”

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

    4 inputs, 1 required
    • transaction_idstring or integerrequired“The transactionHeadId.”
    • with_detailsboolean“Add the line items.”
    • with_discountsboolean“Add the discounts.”
    • with_paymentsboolean“Add the payments.”
  • smaregi_create_customer

    “WRITE: create a customer (member).”

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

    24 inputs, 3 required
    • customerCodestring or numberrequired“Customer code (unique per contract).”
    • customerNostring or number“Customer / member number.”
    • rankstring or number“Member rank.”
    • firstNamestring or numberrequired“First name.”
    • lastNamestring or numberrequired“Last name.”
    • firstKanastring or number“First name, kana.”
    • lastKanastring or number“Last name, kana.”
    • postCodestring or number“Postal code.”
    • addressstring or number“Address.”
    • phoneNumberstring or number“Phone number.”
    • mobileNumberstring or number“Mobile number.”
    • faxNumberstring or number“Fax number.”
    • mailAddressstring or number“E-mail address.”
    • companyNamestring or number“Company name.”
    • departmentNamestring or number“Department name.”
    • sexstring or number“Sex: 0 = unknown, 1 = male, 2 = female.”
    • birthDatestring or number“Birth date, yyyy-mm-dd.”
    • entryDatestring or number“Enrollment (membership start) date, yyyy-mm-dd; some contracts require it when creating a customer.”
    • pointExpireDatestring or number“Point expiry date, yyyy-mm-dd; some contracts require it when creating a customer.”
    • mailReceiveFlagstring or number“Whether the customer accepts guidance mail: 0 = refuse, 1 = allow (default).”
    • notestring or number“Note.”
    • note2string or number“Second note.”
    • storeIdstring or number“Store id the customer belongs to.”
    • statusstring or number“Member status: 0 = active, 1 = suspended, 2 = card lost, 3 = withdrawn, 4 = merged.”
  • smaregi_update_customer

    “WRITE: change fields of one customer (only the fields you pass are changed).”

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

    25 inputs, 1 required
    • customer_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • customerCodestring or number“Customer code (unique per contract).”
    • customerNostring or number“Customer / member number.”
    • rankstring or number“Member rank.”
    • firstNamestring or number“First name.”
    • lastNamestring or number“Last name.”
    • firstKanastring or number“First name, kana.”
    • lastKanastring or number“Last name, kana.”
    • postCodestring or number“Postal code.”
    • addressstring or number“Address.”
    • phoneNumberstring or number“Phone number.”
    • mobileNumberstring or number“Mobile number.”
    • faxNumberstring or number“Fax number.”
    • mailAddressstring or number“E-mail address.”
    • companyNamestring or number“Company name.”
    • departmentNamestring or number“Department name.”
    • sexstring or number“Sex: 0 = unknown, 1 = male, 2 = female.”
    • birthDatestring or number“Birth date, yyyy-mm-dd.”
    • entryDatestring or number“Enrollment (membership start) date, yyyy-mm-dd; some contracts require it when creating a customer.”
    • pointExpireDatestring or number“Point expiry date, yyyy-mm-dd; some contracts require it when creating a customer.”
    • mailReceiveFlagstring or number“Whether the customer accepts guidance mail: 0 = refuse, 1 = allow (default).”
    • notestring or number“Note.”
    • note2string or number“Second note.”
    • storeIdstring or number“Store id the customer belongs to.”
    • statusstring or number“Member status: 0 = active, 1 = suspended, 2 = card lost, 3 = withdrawn, 4 = merged.”
  • smaregi_create_product

    “WRITE: create a product.”

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

    21 inputs, 3 required
    • categoryIdstring or numberrequired“Category id (smaregi_list_categories).”
    • productCodestring or number“Product code (unique per contract).”
    • productNamestring or numberrequired“Product name.”
    • productKanastring or number“Product name, kana.”
    • taxDivisionstring or number“Tax division code (0 = tax included, 1 = tax excluded, 2 = tax free).”
    • productPriceDivisionstring or number“Price division: 1 = standard price (default), 2 = open price.”
    • pricestring or numberrequired“Selling price.”
    • customerPricestring or number“Member price.”
    • coststring or number“Unit cost.”
    • descriptionstring or number“Description.”
    • catchCopystring or number“Catch copy.”
    • sizestring or number“Size.”
    • colorstring or number“Color.”
    • tagstring or number“Tag.”
    • groupCodestring or number“Group code.”
    • urlstring or number“Product URL.”
    • displayFlagstring or number“Show on the register (0 = hidden, 1 = shown).”
    • divisionstring or number“Product division: 0 = normal (default), 1 = prepaid multi-use ticket (only contracts with that feature), 2 = option product.”
    • salesDivisionstring or number“Sales accounting: 0 = counted in sales (default), 1 = excluded from sales totals.”
    • stockControlDivisionstring or number“Stock control: 0 = stock is managed (default), 1 = stock is not managed.”
    • supplierProductNostring or number“Supplier's product number.”
  • smaregi_update_product

    “WRITE: change fields of one product (only the fields you pass are changed), for example its price or name.”

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

    22 inputs, 1 required
    • product_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • categoryIdstring or number“Category (department) id, see smaregi_list_categories.”
    • productCodestring or number“Product code (unique per contract).”
    • productNamestring or number“Product name.”
    • productKanastring or number“Product name, kana.”
    • taxDivisionstring or number“Tax division code (0 = tax included, 1 = tax excluded, 2 = tax free).”
    • productPriceDivisionstring or number“Price division: 1 = standard price (default), 2 = open price.”
    • pricestring or number“Selling price.”
    • customerPricestring or number“Member price.”
    • coststring or number“Unit cost.”
    • descriptionstring or number“Description.”
    • catchCopystring or number“Catch copy.”
    • sizestring or number“Size.”
    • colorstring or number“Color.”
    • tagstring or number“Tag.”
    • groupCodestring or number“Group code.”
    • urlstring or number“Product URL.”
    • displayFlagstring or number“Show on the register (0 = hidden, 1 = shown).”
    • divisionstring or number“Product division: 0 = normal (default), 1 = prepaid multi-use ticket (only contracts with that feature), 2 = option product.”
    • salesDivisionstring or number“Sales accounting: 0 = counted in sales (default), 1 = excluded from sales totals.”
    • stockControlDivisionstring or number“Stock control: 0 = stock is managed (default), 1 = stock is not managed.”
    • supplierProductNostring or number“Supplier's product number.”
  • smaregi_set_stock

    “WRITE: set the absolute stock quantity of one product in one store, replacing the current quantity.”

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

    4 inputs, 3 required
    • product_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • store_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • stock_amountintegerrequired“The new quantity.”
    • memostring“Note stored in the stock history.”
  • smaregi_adjust_stock

    “WRITE: add (positive) or subtract (negative) a quantity to the stock of one product in one store.”

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

    4 inputs, 3 required
    • product_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • store_idstring or integerrequired“Numeric Smaregi id (string or number).”
    • stock_amountintegerrequired“The change: +5 adds five, -3 removes three.”
    • memostring“Note stored in the stock history.”

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 2026-10-27.

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

No AI reading was available for this server's tools (the two runs did not agree, or the listing was not reviewed).

Counted from the listing

Parameters with a description
100% of 180
Tools with a description
100% of 20
Typical description length
154 characters

The tool set

Counted from the listing

Tools
20
Size of the list
about 8,805 tokens for an agent to load (characters ÷ 4)
Naming
20 of 20 names use snake_case

AI reading: easy to mix up

No pair found.

The AI items cover 0 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 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 2026-10-27 (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://smaregi.usefulapi.io/mcp
Cursor · .cursor/mcp.json in a project, or ~/.cursor/mcp.json
{
  "mcpServers": {
    "smaregi": {
      "url": "https://smaregi.usefulapi.io/mcp"
    }
  }
}
VS Code · .vscode/mcp.json
{
  "servers": {
    "smaregi": {
      "type": "http",
      "url": "https://smaregi.usefulapi.io/mcp"
    }
  }
}
VS Code (command line) · Bash or zsh terminal (macOS, Linux)
code --add-mcp '{"name":"smaregi","type":"http","url":"https://smaregi.usefulapi.io/mcp"}'
Claude Code
claude mcp add --transport http smaregi https://smaregi.usefulapi.io/mcp
Cline · cline_mcp_settings.json (Cline CLI: ~/.cline/data/settings/; in the editor: MCP Servers → Configure → Configure MCP Servers)
{
  "mcpServers": {
    "smaregi": {
      "type": "streamableHttp",
      "url": "https://smaregi.usefulapi.io/mcp",
      "disabled": false,
      "autoApprove": []
    }
  }
}
Gemini CLI · ~/.gemini/settings.json, or .gemini/settings.json in a project
{
  "mcpServers": {
    "smaregi": {
      "httpUrl": "https://smaregi.usefulapi.io/mcp"
    }
  }
}
OpenAI Codex · ~/.codex/config.toml, or .codex/config.toml in a trusted project
[mcp_servers.smaregi]
url = "https://smaregi.usefulapi.io/mcp"
Zed · Zed settings file (command: zed: open settings file)
{
  "context_servers": {
    "smaregi": {
      "url": "https://smaregi.usefulapi.io/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://smaregi.usefulapi.io/mcp --transport http
  • The server runs on the operator's infrastructure; it may ask you to sign in when you first connect.
  • Zed's docs we read on 2026-10-26 describe remote servers by URL and do not name the transport.
  • 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; Cline, Gemini CLI, OpenAI Codex and Zed 2026-10-26). 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 smaregi.usefulapi.io/mcpSession openedmatchesour test · 2026-10-27
No credential declared as requiredOpened a session without any credentialmatchesour test · 2026-10-27
Repository github.com/m190/usefulapi-mcpOpens publiclymatchesapi.github.com · 2026-10-27

Who made it?

Feature #7 · lineage

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

Namespace
io.usefulapi · 462 servers
GitHub owner
a personal account (m190)
Repository
github.com/m190/usefulapi-mcp
Stars
0
Repository age
91–180 days
Last push
0–30 days ago
Archived
no

Source: the registry entry and api.github.com · 2026-10-27.

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.

Tool list changes

Our reads compared · no tool called

Hosted endpoint smaregi.usefulapi.io/mcp

No change in the tool list across 2 reads (2026-10-26 to 2026-10-27; versions 1.1.0 to 1.2.0).

Compared from the tool lists our read-only connection recorded, separately for each hosted endpoint and each package: each tool's name, title, description, input schema and annotations (the order of keys and of tools is ignored). We see a list only when we read it: a change is shown between the two reads where we first saw it, and anything after 2026-10-27 is not known yet. No tool was called. How it is compared

Choosing

Record checks

Public records · not a safety rating

4 of 4 record checks met · 4 do not apply · 1 not checked

  • Not ranked by downloads: a remote server publishes no download figure
  • Not ranked by stars: 0 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.
  • Not checkedRepository publishes a security policy (SECURITY.md)We did not read this repository's security policy.
  • 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 2026-10-27. 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.usefulapi/smaregi

Answered from the data above

Who publishes io.usefulapi/smaregi?

The registry ties the namespace io.usefulapi to the domain usefulapi.io; only its owner can publish under it. Its linked repository is github.com/m190/usefulapi-mcp; GitHub reports its owner as m190, a personal account. These are facts from the registry and GitHub, not a rating.

Is io.usefulapi/smaregi safe to install?

We do not rate servers as safe or unsafe. 4 of its 4 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. These are facts with their sources on this page, not a safety guarantee, and we did not run its tools.

Does io.usefulapi/smaregi need an API key or sign-in?

It opened a session without any credential on 2026-10-27. The registry entry declares no required credential; no declaration is not a guarantee.

Has io.usefulapi/smaregi been security tested?

Partly. 3 of the 16 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.

Where is the source code of io.usefulapi/smaregi?

In github.com/m190/usefulapi-mcp, 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.

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 · 2026-10-27
  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 run · an error was returned
  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: exercised

3 exercised13 not run (reason given)2 not applicable

Each check ends in exactly one state: exercised, not run (with the reason), or not applicable (with the reason). 3 of the 16 checks that apply to it were exercised. We do not publish security-check outcomes for named servers.

Exercised · 3
  • 1Inventory
    tool-list    Reads the declared tools, resources and prompts.exercised
  • 2Hidden instructions
    description-poisoning    Looks for hidden instructions in tool descriptions.exercised
  • 18Sign-in metadata
    oauth-url-scheme    Checks the published sign-in metadata for unsafe URLs.exercised
Not run, with the reason · 13
  • 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
  • 13Fake assistant turns
    fake-assistant-turn    Checks prompts that pose as the assistant's own words.The server returned an error when its prompts were read.not run · an error was returned
  • 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 · 2
  • 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

Source: our own test, 2026-10-27, 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. 377 msConnected after 0 redirects. No credential was sent or needed.
  3. Read the inventory: 20 tools, 0 resources, 1 prompt.
  4. 1,030 msFinished: 3 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
pending: added in the weekly update
listed 2026-10-27; not classified yet
Pricing modelAI-classified
pending: added in the weekly update
the website is not read yet
Programming language
JavaScript
api.github.com · 2026-10-27
Hosting type
remote (hosted by the publisher)
registry · 2026-10-27
MCP capability
prompts, tools
our test · 2026-10-27
Transport
streamable HTTP
registry · 2026-10-27
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 · 2026-10-27
Lifecycle status
active
registry · 2026-10-27
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: 91–180 days · stars: 0–9
api.github.com · 2026-10-27
Maintenance
active
api.github.com · 2026-10-27
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. “io.usefulapi/smaregi: MCP server record.” Data checked 2026-10-27. https://protocolprobe.com/mcp/servers/io.usefulapi/smaregi

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: 4 of 4 record checks met

[![ProtocolProbe](https://protocolprobe.com/api/v1/badge/io.usefulapi/smaregi)](https://protocolprobe.com/mcp/servers/io.usefulapi/smaregi)

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