com.ucpchecker/ucp-checker
UCP Checker
Check any domain for UCP support and resolve verified UCP storefronts. Read-only, keyless.
alive probed 2026-10-05 · HTTP 200
8tools
2.7ktokens in Claude Opus 5.5
2.8ktokens in Claude Code
1.4 %of a 200k context window
1.7ko200k_base estimate
963 msto initialize
505 msto list tools
- Endpoint
- https://ucpchecker.com/mcp (streamable-http)
- Host
- ucpchecker.com
- Protocol
- 2025-11-25
- Reports itself as
- UCP Checker 2.0.0
- Capabilities
- prompts, resources, tools
- Instructions
- 4 202 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Website
- https://ucpchecker.com/agents
- Registry
- active, updated 2026-09-14 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| list-stores | 334 | 20 % |
| search-all | 319 | 19 % |
| check-domain | 273 | 16 % |
| search-catalog | 212 | 13 % |
| search-policies | 190 | 11 % |
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 13:49 | alive | 963 ms | 8 | 2.7k | 1.7k |
| 2026-10-05 00:22 | alive | 594 ms | 8 | 1.7k | |
| 2026-10-04 09:59 | alive | 1.1 s | 8 | 1.7k | |
| 2026-10-04 07:52 | alive | 1.0 s | 8 | 1.7k | |
| 2026-10-03 20:32 | alive | 760 ms | 8 | 1.7k | |
| 2026-10-03 17:50 | alive | 1.1 s | 8 | 1.7k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.ucpchecker/ucp-checker)
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.