Official MCP RegistryListed
PublicAPIs.io
Search 1,500+ public APIs with docs, code and auth/free-tier filters; list or sponsor your API.
First seen 15 Oct 2026. Evidence as of 15 Oct 2026.
8
Tools
From an anonymous probe
1
Source listings
Each with its own history
1
Recorded changes
Since first seen
Tools
| Tool | Description | Behaviour |
|---|---|---|
| compare_apis | Compare 2-5 APIs side by side (auth, free tier, HTTPS, pricing, docs summary) to choose one. Pass slugs from search_apis. | Read-only |
| get_api | Everything about one API by slug (from search_apis): documentation summary, endpoints, auth, pricing and links. Use before writing integration code. | Read-only |
| get_deal | Status of a deal: negotiating, agreed, awaiting_approval, awaiting_payment (payment_url is included), publishing, live (live_url), rejected. Also returns the last messages. | Read-only |
| get_quickstart | 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. | Read-only |
| list_offerings | Ways to get an API listed or sponsored on PublicAPIs.io, with fixed prices, current sponsorship availability and the rules. | Read-only |
| search_apis | 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. | Read-only |
| send_message | Reply to the broker in an open deal. Returns the broker's answer and the deal status. | Not declared |
| start_deal | 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. | Not declared |
Change history
- Listed (registry)
| Source | Listing | First seen | Last seen | Versions |
|---|---|---|---|---|
| Official MCP Registry | io.publicapis/directory | 15 Oct 2026 | 15 Oct 2026 | 1 |