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100
MCP live MCP 2025-11-25 streamable-http

costheta

dev.costheta/costheta

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

Watch this dependency

Get before/after evidence when observed tools, schemas, authentication access, availability or the endpoint changes.

Inspect evidence and set up a watch Share public evidence report
Uptime
100.0%
5 direct probes · 30d
Response
866ms
last probe
Tools
3
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://costheta.dev/mcp
Score: 100/100
Handshake verified by our own probe.
why this score
pass Answers the MCP handshake 50/50
The handshake and the list calls succeeded on the primary URL.
pass Lists tools, resources or prompts 30/30
3 tools, 0 resources, 0 prompts returned.
pass 3 or more catalogue items 10/10
3 items in total; 3 or more earns these points.
pass Describes itself 10/10
94 characters; more than 30 earns these points.

Tools · 3

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 …

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.

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "costheta": {
      "url": "https://costheta.dev/mcp",
      "transport": "streamable-http"
    }
  }
}