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PublicAPIs.io

by publicapis.io · remote · no sign-in to list tools · v1.0.0 · published by io.publicapis

Search 1,500+ public APIs with docs, code and auth/free-tier filters; list or sponsor your API.

Final · 1Changes · 1
CompareRegistry entry

8 tools: 1 do something that can't be undone, 1 change things and 6 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http directory https://publicapis.io/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

8 tools

Can't be undone 1Claude Code: ask
  • send_messageReply to the broker in an open deal.No findings

    Why it is in this group

    • The name "send_message" says "send": a word for sending, and what is sent cannot be taken back.
    Description, as the server wrote it
    Reply to the broker in an open deal. Returns the broker's answer and the deal status.
Changes things 1Claude Code: ask
  • start_dealOpen a conversation with the PublicAPIs.io broker agent to list or sponsor an API.No findings

    Why it is in this group

    • The name "start_deal" says "start": a word for a change.
    Description, as the server wrote it
    Open a conversation with the PublicAPIs.io broker agent to list or sponsor an API. Say what you want in plain language and include the API name, website and a contact email if you have them. Returns deal_id and deal_key (keep both; they are needed to continue) and the broker's reply. Every deal is approved by a person before payment.
Only reads 6Claude Code: allow
  • compare_apisCompare 2-5 APIs side by side (auth, free tier, HTTPS, pricing, docs summary) to choose one.No findings

    Why it is in this group

    • The name "compare_apis" says "compare": a word for reading.
    Description, as the server wrote it
    Compare 2-5 APIs side by side (auth, free tier, HTTPS, pricing, docs summary) to choose one. Pass slugs from search_apis.

    Annotations the server declares

    • readOnlyHint: true
  • get_apiEverything about one API by slug (from search_apis): documentation summary, endpoints, auth, pricing and links.No findings

    Why it is in this group

    • The name "get_api" says "get": a word for reading.
    Description, as the server wrote it
    Everything about one API by slug (from search_apis): documentation summary, endpoints, auth, pricing and links. Use before writing integration code.

    Annotations the server declares

    • readOnlyHint: true
  • get_dealStatus of a deal: negotiating, agreed, awaiting_approval, awaiting_payment (payment_url is included), publishing, live (live_url), rejected.No findings

    Why it is in this group

    • The name "get_deal" says "get": a word for reading.
    Description, as the server wrote it
    Status of a deal: negotiating, agreed, awaiting_approval, awaiting_payment (payment_url is included), publishing, live (live_url), rejected. Also returns the last messages.

    Annotations the server declares

    • readOnlyHint: true
  • get_quickstartReady-to-run example code for calling an API, in javascript, python or curl.No findings

    Why it is in this group

    • The name "get_quickstart" says "get": a word for reading.
    Description, as the server wrote it
    Ready-to-run example code for calling an API, in javascript, python or curl. Use when you are about to integrate an API into code. Verified samples are marked verified=true.

    Annotations the server declares

    • readOnlyHint: true
  • list_offeringsWays to get an API listed or sponsored on PublicAPIs.io, with fixed prices, current sponsorship availability and the rules.No findings

    Why it is in this group

    • The name "list_offerings" says "list": a word for reading.
    Description, as the server wrote it
    Ways to get an API listed or sponsored on PublicAPIs.io, with fixed prices, current sponsorship availability and the rules.

    Annotations the server declares

    • readOnlyHint: true
  • search_apisFind a public API or data source for a task: use this whenever the user (or your code) needs an API, dataset or third-party service, e.g.No findings

    Why it is in this group

    • The name "search_apis" says "search": a word for reading.
    Description, as the server wrote it
    Find a public API or data source for a task: use this whenever the user (or your code) needs an API, dataset or third-party service, e.g. weather, geocoding, payments, sports scores, crypto prices, jobs, LLMs. Searches 1,500+ APIs on PublicAPIs.io and returns name, description, category, link and signals (auth: none/api_key/oauth, free_tier, https). Filter with auth="none" for APIs that need no key, free=true, https=true.

    Annotations the server declares

    • readOnlyHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http directory https://publicapis.io/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__directory__search_apis",
      "mcp__directory__get_api",
      "mcp__directory__get_quickstart",
      "mcp__directory__compare_apis",
      "mcp__directory__list_offerings",
      "mcp__directory__get_deal"
    ],
    "ask": [
      "mcp__directory__start_deal",
      "mcp__directory__send_message"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as directory. Review it before you use it.