APIDirectory — the index of the programmable web

FOR AI AGENTS

Give your agent the whole index.

One MCP server, and searching needs no account and no token. Point Claude, Cursor or any MCP client at it.

01Search 2,648 APIs and read their endpoints. search_apis get_api

02Get a key without leaving the chat. Free plans issue one on the spot; paid plans send your human a checkout link. subscribe_api

03Call the API. Every response says what's left of the plan, so the agent can pace itself. Some APIs are MCP servers too, with one tool per endpoint. X-Gw-Remaining

AGENT QUICKSTART → LLMS.TXT

{
  "mcpServers": {
    "apidirectory": {
      "type": "http",
      "url": "https://apidirectory.com/mcp"
    }
  }
}

Add this to your MCP client's config. In claude.ai, add it as a custom connector with the URL alone.

claude mcp add --transport http apidirectory https://apidirectory.com/mcp

Run this once in a terminal. The tools show up in your next session.

curl -s https://apidirectory.com/agents.md

Are you an AI agent? Read the quickstart first: the tools, the find-subscribe-call loop, and what to do on a 429.

The Index

55 CATEGORIES · 2,648 LISTINGS

01 animals 28 02 anime 27 03 Anti-Malware 17 04 Art & Design 31 05 Artificial Intelligence 39 06 Authentication & Authorization 7 07 Blockchain 80 08 Books 29 09 Business 90 10 Calendar 25 11 Cloud Storage & File Sharing 16 12 Continuous Integration 11 13 Cryptocurrency 94 14 Currency Exchange 27 15 Data Validation 17 16 Development 406 17 Dictionaries 16 18 Documents & Productivity 57 19 Email 40 20 Entertainment 63 21 Environment 28 22 Events 5 23 Finance 139 24 Food & Drink 30 25 Games & Comics 126 26 Geocoding 139 27 Government 120 28 Health 39 29 Image Generation 10 30 Jobs 30 31 Machine Learning 39 32 Messaging & Email 20 33 Music 38 34 News 27 35 Open Data 191 36 Open Source Projects 8 37 Patent 5 38 Payments & Fintech 20 39 Personality 26 40 Phone 25 41 Photography 34 42 Programming 2 43 Science & Math 53 44 Security 65 45 Shopping 70 46 Social 68 47 Sports & Fitness 54 48 Test Data 41 49 Text Analysis 56 50 Tracking 14 51 Transportation 106 52 URL Shorteners 22 53 Vehicle 12 54 Video 99 55 Weather 45

From the index

GET FEATURED → · SPONSOR A CATEGORY →

№ APD-00771 UNCLAIMED

Mercedes-Benz

Telematics data, remotely access vehicle functions, car configurator, locate service dealers

auth: unknown · spec: not published · pricing: unknown

YOURS? CLAIM IT →

№ APD-02028 UNCLAIMED

btcnode.uk

Bitcoin blockchain data, fees, mempool, SEC insider trades, Reddit sentiment. x402 micropayments for paid endpoints.

auth: none · spec: openapi 3.1 · pricing: unknown

YOURS? CLAIM IT →

№ — OPEN SLOT

Your API, right here.

A featured entry spends 7 days in this row — seen by every visitor to the index. Stamped, because paid placement always is.

$39 · 48 h review · 7 days featured

FEATURED ENTRY TAKE THE SLOT →

FOR DEVELOPERS

Find the API that actually fits.

01Search and filter the whole index — by auth model, spec format and category.

02Registry records show what the crawler actually observed — dead links included.

03Structured endpoint pages, built from each API's own OpenAPI spec.

BROWSE THE INDEX →

FOR API OWNERS

Your API is probably already in here.

01Claim your listing — one click with an email on your domain, or a DNS record.

02The stamp flips to VERIFIED OWNER and the entry is yours.

03Get seen: featured entries and one sponsored slot per category.

FIND YOUR API →

Get your API in front of the people searching for one.

SEE THE RATE CARD →

FEATURED ENTRIES 7 days on the homepage, $39. Stamped, capped at three, first come first served. SPONSORED CATEGORIES Own the only slot in your category for 30 days — the listing page and every entry in it. THE DATASET The index as data — every listing, spec and observation. Licensing opens soon; write to us.

Every API on the internet, indexed.

The Index

From the index