Reqistry

Discover, compare, and monitor 1,400+ APIs directly from your AI coding agent.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Discover, compare, and monitor 1,400+ APIs directly from your AI coding agent.

    How to connect

    How to connect Reqistry to Claude

    The server address to paste into Claude settings:

    https://mcp.reqistry.dev/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect Reqistry to ChatGPT

    The server address to paste into ChatGPT settings:

    https://mcp.reqistry.dev/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect Reqistry to Cursor

    The server address to paste into Cursor settings:

    https://mcp.reqistry.dev/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (13)

    Raw names from tools/list. Only developers need these.

    list_categoriesList all active API categories with the number of published APIs in each. Use to populate a category filter or browse by topic.
    get_category_apisList published APIs in a category by slug (e.g. 'weather', 'finance'). Paginated. Use list_categories first to get a category slug.
    get_apiGet full detail for one API by slug or id, including health, metadata, verification, and warnings. Use after browsing a category to drill in.
    get_alternativesFind alternative APIs similar to a given API id — prefers same category, falls back to same API type. limit must be 2 or 3 (default 3).
    check_healthTrigger (or return cached) a health check for one API. Returns CACHED within cooldown, or QUEUED with a poll URL. Rate-limited per device.
    get_api_trust_scoreGet the Reqistry trust score for one API by id or slug. Score covers uptime, response time, docs quality, auth clarity, CORS, pricing clarity, freshness, and OpenAPI availability.
    compare_apisCompare 2 to 4 APIs side-by-side by id or slug. Returns auth, pricing, rate limits, SDKs, response time, CORS, verification, OpenAPI, and trust scores.
    assess_api_production_safetyAssess whether an API looks production-safe using Reqistry trust score, health, docs, auth, pricing, CORS, and OpenAPI signals.
    suggest_alternativesSuggest healthier alternatives to a weak or dead API. Uses the same category/type matching as Reqistry alternatives.
    get_change_feedRead recent Reqistry API change events: pricing changes, docs moves, OpenAPI changes, health degradation/recovery, and trust-score changes.
    get_use_case_collectionsGet curated use-case packs such as finance dashboards, free AI APIs, travel apps, and no-auth prototype APIs.
    submit_apiSubmit a new API for review. Creates a 'pending' submission (not immediately published). At least name or link required. Email optional.
    recommend_apisGet recommended APIs — personalized when the device has bookmarks, otherwise random picks. Optional limit (max 50).