Costheta

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

Add to Cursor Add to VS Code

Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "costheta": {
      "command": "npx",
      "args": [
        "-y",
        "costheta"
      ]
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

costheta-verify

Public verifier for costheta decision certificates.

Verifies: the canonical hash of the certificate body, the Ed25519 signature (RFC 8032) and the ML-DSA signature (FIPS 204), against the public keys published at costheta.dev/keys.

Code lands here shortly. The certificate format (v0.3) is specified in the federation proposal: https://github.com/costhetadev/federation-proposal

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Frequently Asked Questions about Costheta

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "costheta": { "command": "npx", "args": ["-y", "costheta"] } }

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Technical Specs & Signals

CategoryDeveloper Tools

29Quality signal: Emerging · 29/100How this signal is calculated ▾

Server availabilityNot measured

Not scored for repo-hosted servers — we can't reach the running server, only its GitHub page. Hosted MCP endpoints are health-checked live.

Verified ownership10/20

Documentation & tools11/30

Adoption & activity1/15

Community engagement0/10

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More in 💻 Developer Tools →Best MCP servers for Developers →Alternatives to Costheta →Install in Claude Desktop Install in Cursor Install in VS Code

Documentation Overview

costheta-verify

Public verifier for costheta decision certificates.

Verifies: the canonical hash of the certificate body, the Ed25519 signature (RFC 8032) and the ML-DSA signature (FIPS 204), against the public keys published at costheta.dev/keys.

Code lands here shortly. The certificate format (v0.3) is specified in the federation proposal: https://github.com/costhetadev/federation-proposal