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Signalcrest

R1· needs a key

Cross-source trend signals from 10 developer communities, scored every 30 minutes.

v1.0.0 · active · descriptor JSON · versions

An agent can connect on its own if it already holds SIGNALCREST_TOKEN.Remote endpoint behind a static API key or header. The registry never sees the value; the agent fills the placeholder.
Quality79good
Trust74of 100
Uptime, 30 days100%
Latency p50339 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "signalcrest": {
      "type": "http",
      "url": "https://www.signalcrest.app/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SIGNALCREST_TOKEN}"
      }
    }
  }
}
claude mcp add --transport http signalcrest https://www.signalcrest.app/api/mcp --header "Authorization: Bearer ${SIGNALCREST_TOKEN}"
[mcp_servers.signalcrest]
url = "https://www.signalcrest.app/api/mcp"
bearer_token_env_var = "SIGNALCREST_TOKEN"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "signalcrest": {
      "type": "remote",
      "url": "https://www.signalcrest.app/api/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:SIGNALCREST_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "signalcrest": {
      "type": "http",
      "url": "https://www.signalcrest.app/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SIGNALCREST_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=signalcrest&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vd3d3LnNpZ25hbGNyZXN0LmFwcC9hcGkvbWNwIiwiaGVhZGVycyI6eyJBdXRob3JpemF0aW9uIjoiQmVhcmVyICR7U0lHTkFMQ1JFU1RfVE9LRU59In19"
}
{
  "servers": {
    "signalcrest": {
      "type": "http",
      "url": "https://www.signalcrest.app/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SIGNALCREST_TOKEN}"
      }
    }
  }
}
{
  "mcpServers": {
    "signalcrest": {
      "httpUrl": "https://www.signalcrest.app/api/mcp",
      "headers": {
        "Authorization": "Bearer ${SIGNALCREST_TOKEN}"
      }
    }
  }
}
extensions:
  "signalcrest":
    enabled: true
    name: "signalcrest"
    type: streamable_http
    uri: "https://www.signalcrest.app/api/mcp"
    headers:
      "Authorization": "Bearer ${SIGNALCREST_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${SIGNALCREST_TOKEN}. The registry never accepts secret values.

Quality 79 / 100good

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-06-18; 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: list_entities (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_signals (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_topic (readOnlyHint, destructiveHint, idempotentHint, openWorldHint); …
  • pass
    tools.token_costabout 633 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 633 tokens to load them all · tool set b90719f1ffce · checked 2026-10-21 00:32 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 74 / 100

no-repository
provenance35
liveness100
freshness85
hygiene80

+reachable +uptime-100% ~updated-40d-ago -no-repository

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://www.signalcrest.app/api/mcp streamable-httpapi_key ${SIGNALCREST_TOKEN}yes100%339 ms2025-06-182026-10-20

Tools (4)

get_entityFull detail for one entity by name (e.g. "kubernetes"): current composite score, complete score history, which communities are talking about it, and the live member items (evidence) behind the score. Names come from list_entities.
get_topicFull detail and complete score history for one topic, by id (e.g. "hn:48910545", "gh:1287845516"). Call this after list_signals to see how a specific signal has moved over time, its cross-source corroboration, and its lifecycle stage. Ids come from list_signals.
list_entitiesTrending entities (products, companies, libraries, technologies) ranked by cross-source momentum. An entity aggregates every post, repo and release mentioning it across ten developer and builder communities — one row per trend rather than per post. Prefer this over list_signals when the user asks about trends or technologies; use list_signals for individual posts.
list_signalsTop technology signals ranked by momentum right now, scored every 30 minutes across ten developer and builder communities (Hacker News, GitHub, Stack Overflow, npm, Hugging Face, Dev.to, Lobsters, Product Hunt, arXiv, crypto governance forums). Call this to find what is gaining traction before it reaches search-trend tools — e.g. when the user asks what is emerging, trending, or worth paying attention to in a technology area. Returns live unredacted data with no delay.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "io.github.apolloprojectsllc-svg/signalcrest",
  "title": "Signalcrest",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://www.signalcrest.app/api/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "isRequired": true,
          "description": "Bearer <your Signalcrest API key>. Free accounts get 100 requests a month: https://www.signalcrest.app/dashboard"
        }
      ]
    }
  ],
  "version": "1.0.0",
  "description": "Cross-source trend signals from 10 developer communities, scored every 30 minutes."
}