PPN Hub — public APIs over MCP
One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier.
| Endpoint | https://mcp.ppn-hub.com/mcp (streamable-http) |
|---|---|
| Registry version | 1.2.1 |
| Now | 3 tools · grade A (96) · pin ts_39cc188393249b68efdf80f7f3752426 · protocol 2025-06-18 |
| First / last listed | 2026-10-31 02:05 UTC / 2026-10-31 02:05 UTC |
| Grade over time | 2026-10-31: A (96), 3 tools |
Is this your server? Own a server? ToolFit hosted watch re-checks it every 24 h ($0.25 per 30 days) or 6 h ($0.60) and sends you an HMAC-signed webhook when its tools or grade change: POST https://api.youraitools.co/toolfit/v1/watch. To opt out, see About & opt-out.
Tools: search_apis execute_api environment_brief
search_apis | Search across 519 endpoints in 60 APIs (amenomi, cultural, earth, energy-calc, green-path, harmonias, hydrogen, internal, nanobase, nanosnap, natura, platform, sakurahub, science, sim, space, stocks). Returns matching endpoints with method, path, summary, parameters, and a ready-to-run example. Use this to discover available API endpoints before calling execute_api. Results carry a "coverage" fiel params: query*, domain, method, tag, limit, region |
execute_api | Execute a request against any of the 60 registered APIs. Use search_apis first to find the correct api name and operationId. Requires 'Authorization: Bearer ppn_live_*'. params: api*, operationId*, params, body |
environment_brief | Environmental brief for one location: fans out to every public geo-aware API (weather, terrain, environment, …) and returns a merged JSON. Partial results come back with an errors[] list. Requires 'Authorization: Bearer ppn_live_*'. params: lat*, lon*, place |
Entries describe changes in tool definitions. They are not statements about a server, its quality or its author. The grade measures how the tool definitions fit model providers (token cost, schema compatibility, confusable names) as scored by the ToolFit engine at the time of the listing. JSON: append .json. Opt-out: how or hello@youraitools.co.