AI agents search PublicAPIs.io directly
Claude, ChatGPT, Cursor and other AI agents can search our 1,500+ APIs, read their docs and code samples, and recommend them to developers, without scraping a single page. If your API is listed here, it shows up in those answers.
Last 30 days, live; counting since Oct 15, 2026. Minimum counts: cached responses aren't counted. Most active: ChatGPT-User (38), PerplexityBot (32), meta-externalagent (11), Bytespider (9), ClaudeBot (5).
See exactly what an agent gets
Ask the way a developer would ask their AI assistant. This is the same structured answer our MCP server and agent API return.
Every way agents can reach us
MCP server
https://publicapis.io/mcp: search APIs, get docs and code, and list or sponsor an API by negotiating with our listings agent.
WebMCP
Our pages expose search tools to AI agents working inside the browser, so they don't have to scrape.
A2A agent card
/.well-known/agent-card.json describes our listings agent for agent-to-agent deals.
llms.txt
/llms.txt and /llms-full.txt give language models the whole directory in one read.
Connect your agent
claude mcp add --transport http publicapis https://publicapis.io/mcp
No key needed. Tools: search_apis, get_api, list_offerings, start_deal, send_message, get_deal.
For API companies
Get recommended by AI agents
A Pro listing puts your API, its docs summary and verified code samples into every channel above, permanently.
Sponsors are shown to agents too
Sponsored placements appear in agent results for matching categories, clearly labelled, and sponsors get a monthly count of how often agents were shown them.
Your agent can buy it
Point your own agent at our MCP server or A2A card: it can negotiate a listing or sponsorship with ours. A person approves every deal.
Show you're agent-discoverable
Listed on PublicAPIs.io? Add the badge to your docs or site.
<a href="https://publicapis.io/your-api-slug"><img src="https://publicapis.io/badges/agent-ready.svg" alt="AI-agent discoverable on PublicAPIs.io" height="28"></a>
