io.github.bartosz-kuc/otwarteapi
otwarteAPI.pl
Official public & government APIs, dozens of countries: registers, statistics, open data. Keyless.
alive probed 2026-10-05 · HTTP 200
1tools
470tokens in Claude Opus 5.5
481tokens in Claude Code
0.2 %of a 200k context window
282o200k_base estimate
339 msto initialize
141 msto list tools
- Endpoint
- https://otwarteapi.pl/mcp (streamable-http)
- Host
- otwarteapi.pl
- Protocol
- 2025-06-18
- Reports itself as
- otwarteapi-mcp 1.0.1
- Capabilities
- tools
- Instructions
- 437 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/bartosz-kuc/otwarteapi-catalog
- Registry
- active, updated 2026-09-09 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| szukaj_api | 282 | 100 % |
History
We add a row when the result changes. A server with no change keeps its last row.
| Probed | Result | Init | Tools | Claude | o200k |
|---|---|---|---|---|---|
| 2026-10-05 14:33 | alive | 339 ms | 1 | 470 | 282 |
| 2026-10-05 00:32 | alive | 214 ms | 1 | 282 | |
| 2026-10-04 10:03 | alive | 888 ms | 1 | 282 | |
| 2026-10-04 07:57 | alive | 793 ms | 1 | 282 | |
| 2026-10-03 20:37 | alive | 856 ms | 1 | 282 | |
| 2026-10-03 17:53 | alive | 730 ms | 1 | 282 |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.bartosz-kuc/otwarteapi)
An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.