Power your agent
The publisher's own URL. Not a PlugMCP endpoint.
Host a copy with our keys and logs.
https://costheta.dev/mcpThe Claude button above opens Claude with the name and URL filled in. You still confirm it there.
claude mcp add --transport http dev.costheta-costheta https://costheta.dev/mcpRun in a terminal.
{ "mcpServers": { "dev.costheta-costheta": { "command": "npx", "args": [ "-y", "mcp-remote", "https://costheta.dev/mcp" ] } }}claude_desktop_config.json
Remote URL or a command on your machine? How the two installs differ
Run on PlugMCP
A new server you create. It is not this listing's official endpoint. Use the publisher install when you want their URL and their credentials.
LaunchFrom the publisher
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
Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.
© 2026 MCP Directory.
Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.
{ "mcpServers": { "dev.costheta-costheta": { "url": "https://costheta.dev/mcp", "headers": {} } }}Tools
No tool list yet. Remote servers get one after the first health check.
FAQ
Copy the http config for Cursor, Claude Desktop, Claude Code, or VS Code on this page. It uses the publisher's install, not a PlugMCP proxy.
No required environment variable is listed on this record.
Costheta is reached over HTTP.
Last checked 2026-11-08. Verifiable physical randomness from cosmic-ray detections. Free beacon, paid signed decisions.