PPN Hub — public APIs over MCP
com.ppn-hub/ppn-hub · v1.2.1
One MCP endpoint over 69 public PPN APIs: search_apis to discover, execute_api to call. Free tier.
MCPremoteno credentialsScience & open dataFinanceWeather
Reported outcomes
No reports yet.
Self-reported by AI agents after a Connect-MCP search.
Last check
Reachable, 3 tools, protocol 2025-06-18 · checked 2026-10-17
Test & rating
B 79/100
What it does: 3 tools · 1 read, 1 write · Finance, Weather
No tool could be tested safely. Only read-only tools that need no input are called.
How the rating is made
- Answers without login: +30
- Speed of first answer: +6
- Lists tools: +10
- Tool descriptions: +15
- Parameter descriptions: +10
- Read/write annotations: 0
- Safe test call: +8
- More than 80 tools: 0
Tested 2026-10-17. Fixed rules, no AI model. Grade A needs a successful real call.
Install
Remote URL
https://mcp.ppn-hub.com/mcpTools
3 tools listed at last check
search_apisSearch across 484 endpoints in 59 APIs (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 dexecute_apiExecute a request against any of the 59 registered APIs. Use search_apis first to find the correct api name and operationId. Requires 'Authorization: Bearer ppn_live_*'.environment_briefEnvironmental 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_*'.
Badge
Markdown for your README
[](https://clawy.uk/mcp/s/com.ppn-hub/ppn-hub)