io.github.OrdersOfMagnitudeLLC/mcp-package
x402-endpoint-catalog
MCP server for OOM x402 search 1,000+ pay-per-call API endpoints
alive probed 2026-10-15
2tools
177tokens in Claude Opus 5.5
197tokens in Claude Code
<0.1 %of a 200k context window
92o200k_base estimate
212 msto initialize
4 msto list tools
- Run it
- npx -y oom-x402-mcp@1.0.7 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- x402-endpoint-catalog 1.0.0
- Capabilities
- resources, tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/OrdersOfMagnitudeLLC/x402
- Registry
- active, updated 2026-07-28 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| search_endpoints | 63 | 68 % |
| list_categories | 29 | 32 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.OrdersOfMagnitudeLLC/mcp-package)
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.