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entropy

R0· no sign-in

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

v0.1.1 · active · repository · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality79good
Trust94of 100
Uptime, 30 days100%
Latency p50221 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "entropy": {
      "type": "http",
      "url": "https://entropy-mcp.terradev.cloud/mcp"
    }
  }
}
claude mcp add --transport http entropy https://entropy-mcp.terradev.cloud/mcp
[mcp_servers.entropy]
url = "https://entropy-mcp.terradev.cloud/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "entropy": {
      "type": "remote",
      "url": "https://entropy-mcp.terradev.cloud/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "entropy": {
      "type": "http",
      "url": "https://entropy-mcp.terradev.cloud/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=entropy&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZW50cm9weS1tY3AudGVycmFkZXYuY2xvdWQvbWNwIn0%3D"
}
{
  "servers": {
    "entropy": {
      "type": "http",
      "url": "https://entropy-mcp.terradev.cloud/mcp"
    }
  }
}
{
  "mcpServers": {
    "entropy": {
      "httpUrl": "https://entropy-mcp.terradev.cloud/mcp"
    }
  }
}
extensions:
  "entropy":
    enabled: true
    name: "entropy"
    type: streamable_http
    uri: "https://entropy-mcp.terradev.cloud/mcp"
    timeout: 300

Quality 79 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene71 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • pass
    tools.description_lengthdescriptions are concise
  • pass
    tools.schemasevery tool has an object input schema
  • fail
    tools.annotationsno tool declares readOnlyHint or destructiveHint, so clients cannot tell safe calls from risky ones
  • fail
    tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: commitment (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); test (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); random (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
  • pass
    tools.token_costabout 903 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability100 · weight 15
  • pass
    stability.changesno tool changes in 30 days
  • pass
    stability.rug_pullno tool changed its meaning under the same name
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 903 tokens to load them all · tool set c4bce8172e30 · checked 2026-10-20 10:03 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 94 / 100

provenance80
liveness100
freshness100
hygiene100

+repository +namespace-matches-repo +reachable +uptime-100% +updated-23d-ago

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://entropy-mcp.terradev.cloud/mcp streamable-httpnoneyes100%221 ms2025-11-252026-10-20

Tools (4)

commitmentVerifiable 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 -- commit + execute + reveal in one call. Pass draw_spec, or operation + params directly. verify -- pure third-party verification of commitment_record + reveal_record. No local state. list -- read-only view of the local commitment log (limit, since).
exploreBandit 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.
randomDirect 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. params: {items, return_permutation} choose -- k items, weighted or not, with/without replacement. params: {items, k, weights, replacement} sample -- named distributions: uniform, normal, lognormal, exponential, triangular, beta. params: {distribution, params, n<=10000} constrained -- records with independently sampled attributes + chi-squared conformance proof. params: {attributes: {attr: {value: prop}}, n} seed (top level) makes any operation reproducible.
testStatistical 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.

Schemas: list_tools.

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Official server.json
{
  "name": "io.github.terradev-cloud/entropy",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://entropy-mcp.terradev.cloud/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.1",
  "repository": {
    "url": "https://github.com/terradev-cloud/entropy-mcp",
    "source": "github"
  },
  "description": "Cryptographically sound randomness for agents, with verifiable commit-reveal."
}