"Marko" matching MCP servers:

Bitcoin-anchored provenance for AI outputs; enables stamping, verifying, and tracing outputs with offline-verifiable canonical roots.

Capitoline is an MCP server that exposes the official Claude Code, Codex and Antigravity CLIs behind one endpoint, so MCP clients can reach any model those CLIs serve or convene a council where several models answer, anonymously rank each other, and a blind judge synthesizes the result. It also serves image generation and per-caller usage reporting on the host's own subscriptions.