io.github.mythos-agent/mythos-agent
mythos-agent
Open-source AI security agent: SAST, DAST, and policy-as-code over MCP.
alive probed 2026-10-15
12tools
1.4ktokens in Claude Opus 5.5
1.5ktokens in Claude Code
0.7 %of a 200k context window
728o200k_base estimate
616 msto initialize
8 msto list tools
- Run it
- npx -y mythos-agent@4.0.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- mythos-agent 4.0.1
- Capabilities
- 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/mythos-agent/mythos-agent
- Registry
- active, updated 2026-04-24 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| sphinx_scan | 91 | 13 % |
| mythos_scan | 80 | 11 % |
| sphinx_endpoints | 65 | 9 % |
| sphinx_secrets | 63 | 9 % |
| sphinx_results | 61 | 8 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.mythos-agent/mythos-agent)
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.