io.github.GuardBee/a2a-auditor
guardbee-a2a-auditor
Scans Agent2Agent (A2A) protocol code for webhook SSRF, missing auth, and credential exposure
alive probed 2026-10-14
4tools
780tokens in Claude Opus 5.5
828tokens in Claude Code
0.4 %of a 200k context window
438o200k_base estimate
338 msto initialize
9 msto list tools
- Run it
- npx -y @guardbee/mcp-a2a-auditor@0.1.2 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- guardbee-a2a-auditor 0.1.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/GuardBee/guardbee-mcp
- Registry
- active, updated 2026-10-13 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| scan_directory | 162 | 37 % |
| scan_text | 149 | 34 % |
| scan_file | 73 | 17 % |
| list_patterns | 54 | 12 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.GuardBee/a2a-auditor)
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.