com.whatagentsbuy/whatagentsbuy
What Agents Buy
Independent measured reviews of x402 API sellers: pre-payment verdicts and accuracy grades.
alive probed 2026-10-05 · HTTP 200
7tools
2.1ktokens in Claude Opus 5.5
2.2ktokens in Claude Code
1.0 %of a 200k context window
1.3ko200k_base estimate
928 msto initialize
344 msto list tools
- Endpoint
- https://whatagentsbuy.com/mcp (streamable-http)
- Host
- whatagentsbuy.com
- Protocol
- 2025-06-18
- Reports itself as
- whatagentsbuy 1.1.0
- Capabilities
- tools
- Instructions
- 1 501 characters
- Claude count
- Claude Opus 5.5, measured 2026-10-05. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/neilkpatel/whatagentsbuy
- Website
- https://whatagentsbuy.com
- Registry
- active, updated 2026-08-18 · registry entry
- Reachable
- 6 of the last 6 probes
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| find_api | 303 | 24 % |
| check_before_paying | 279 | 22 % |
| rank_by_accuracy | 172 | 14 % |
| rank_sellers | 150 | 12 % |
| look_up_seller | 145 | 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 13:52 | alive | 928 ms | 7 | 2.1k | 1.3k |
| 2026-10-05 00:23 | alive | 336 ms | 7 | 1.3k | |
| 2026-10-04 09:59 | alive | 742 ms | 7 | 1.3k | |
| 2026-10-04 07:53 | alive | 1.3 s | 7 | 1.3k | |
| 2026-10-03 20:32 | alive | 675 ms | 7 | 1.3k | |
| 2026-10-03 17:50 | alive | 839 ms | 7 | 1.3k |
Badge and feed
[](https://mcpcost.ulehla.dev/s/com.whatagentsbuy/whatagentsbuy)
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.