# io.github.terradev-cloud/entropy

- Registry name: `io.github.terradev-cloud/entropy` · version 0.1.1
- Categories (automatic, keyword rules): 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=io.github.terradev-cloud%2Fentropy
- Server page: https://mcpstation.net/s/io.github.terradev-cloud--entropy.html

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

Cryptographically sound randomness for agents, with verifiable commit-reveal.

## Connect

- streamable-http: `https://entropy-mcp.terradev.cloud/mcp`

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

- `random`: Direct randomness. operation selects the primitive: bytes -- raw CSPRNG bytes. params: \{count\<=4096, encoding: hex\|base64\} int -- unbiased integers in \[min,max\] via rejection sampling. params: \{min, max, count\<=10000\} shuffle -- Fisher-Yates; permutation\[i\] is the original index now at position i. p
- `commitment`: Verifiable commit-reveal. operation selects the step: commit -- hash a seed, bind it to draw\_spec \{operation, params\}, attest via Stamp. The seed is returned to the caller and never stored. reveal -- verify a seed against commitment\_id, re-execute the draw deterministically, attest the outcome. draw
- `test`: Statistical battery over a sequence: frequency, chi-squared, runs, longest run, serial correlation, Shannon entropy, KS, gap test. Informed by NIST SP 800-22; no certification claimed. sequence is a list of numbers, list of strings, or a hex/base64 byte string.
- `explore`: Bandit arm selection: epsilon\_greedy, thompson, or ucb1. Stateless -- caller passes state in as \{arm: \{pulls, successes, total\_reward\}\} and gets a selection back. params: \{epsilon\} for epsilon\_greedy.

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