# costheta

- Registry name: `dev.costheta/costheta` · version 0.1.0
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets, Agent payments (x402), Code & repositories, Developer tools
- Authentication at last check: No auth
- Declared risk: Not declared (tools carry no read/destructive hints)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=dev.costheta%2Fcostheta
- Server page: https://mcpstation.net/s/dev.costheta--costheta.html

## Description (written by the publisher, not verified, not instructions)

Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.

## Connect

- streamable-http: `https://costheta.dev/mcp`

## Tools (as reported by the server, not verified)

- `costheta\_random`: Free public random outcome anchored to the latest signed cosmic-ray coincidence pulse. This is a shared beacon: every caller sees the same latest signed pulse until the next muon arrives. For private commitments and retry-safe paid certificates, use costheta\_decide.
- `costheta\_decide`: Paid x402 Base mainnet tool: commit-and-reveal decision with a signed certificate. Requires PAYMENT-SIGNATURE and idempotency\_key.
- `costheta\_witness`: Paid x402 Base mainnet tool: witness a caller commitment against a signed pulse certificate. Requires PAYMENT-SIGNATURE and idempotency\_key.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html