MCP server

Entropy

io.github.terradev-cloud/entropy

Checked 25 Oct 2026, 20:29 UTC · Connected to it and listed its tools

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

Working at last checkAbout 1,082 tokens per request once connected4 tools

https://entropy-mcp.terradev.cloud/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 4
Token cost: About 1,082 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 25 Oct 2026, 20:29 UTC

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http entropy https://entropy-mcp.terradev.cloud/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.entropy]
url = "https://entropy-mcp.terradev.cloud/mcp"

Gemini CLI

{"mcpServers":{"entropy":{"httpUrl":"https://entropy-mcp.terradev.cloud/mcp"}}}

Cursor

{"mcpServers":{"entropy":{"url":"https://entropy-mcp.terradev.cloud/mcp"}}}

VS Code

{"servers":{"entropy":{"type":"http","url":"https://entropy-mcp.terradev.cloud/mcp"}}}

Antigravity

agy mcp add entropy https://entropy-mcp.terradev.cloud/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"entropy","server_url":"https://entropy-mcp.terradev.cloud/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"entropy","server_url":"https://entropy-mcp.terradev.cloud/mcp"}

commitment ~354 tokens
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.
explore ~140 tokens
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.
random ~332 tokens
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 in
test ~256 tokens
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.

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