abundance-apis

Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    Try 26 utility REST APIs keylessly: NAICS classification, IP geo, email validation, currency.

    How to connect

    How to connect abundance-apis to Claude

    The server address to paste into Claude settings:

    https://abundanceapis.com/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 abundance-apis to ChatGPT

    The server address to paste into ChatGPT settings:

    https://abundanceapis.com/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 abundance-apis to Cursor

    The server address to paste into Cursor settings:

    https://abundanceapis.com/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 (7)

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

    list_apisList the full Abundance APIs catalog — every API with its description, category, OpenAPI spec URL, RapidAPI listing URL, gateway host, and pricing. Call this first to discover what is available and how to get production access.
    naics_matchSemantically match a plain-English company description to 2022 NAICS industry codes. Returns ranked codes with a 0-100 match rating, hierarchy, and the official Census activities that matched. Keyless trial of the NAICS Code Finder API.
    ip_lookupGeolocate an IPv4/IPv6 address — country, city, coordinates, timezone. Keyless trial of the IP Geolocation API.
    email_validateValidate an email address — syntax, MX records, disposable/role detection, and typo suggestions. Keyless trial of the Email Validator API.
    currency_convertConvert an amount between currencies using European Central Bank daily reference rates. Keyless trial of the Currency Exchange Rates API.
    url_metadataFetch a URL's Open Graph / Twitter card metadata (title, description, preview image) server-side. Keyless trial of the Web Toolbox API.
    cors_fetchFetch any URL through the SSRF-hardened CORS proxy and return its response headers + status. Keyless trial of the CORS Proxy & Web Toolbox API.