MCP Junction

Search the MCP server directory by keyword and/or filters. Keyword matches name, description, and GitHub topics. Returns active servers sorted by relevance then stars. Supply at least one of query, category, or topic — with no query, filters alone enumerate a whole category or topic by stars. Data refreshes nightly from the public GitHub API. Any install_hint is a best-effort guess from the repository language, not a verified command: relay the install_hint_caveat with it rather than presenting it as ready to run.

{
  "type": "object",
  "properties": {
    "query": {
      "type": "string",
      "description": "Keywords, e.g. 'postgres', 'browser automation'. Optional if category or topic is given."
    },
    "category": {
      "type": "string",
      "description": "Optional category slug filter, e.g. 'databases' (see list_categories)"
    },
    "topic": {
      "type": "string",
      "description": "Optional GitHub topic filter, exact match, e.g. 'kubernetes'. Any topic string works, not only the curated ones from list_topics."
    },
    "language": {
      "type": "string",
      "description": "Optional implementation language filter, e.g. 'Python'"
    },
    "limit": {
      "type": "integer",
      "minimum": 1,
      "maximum": 50,
      "description": "Max results (default 10)"
    }
  }
}

Get the full directory entry for one MCP server by id ('owner--repo', e.g. 'microsoft--playwright-mcp'). Includes install hint, license, stars, category, and editorial fields. Any install_hint is a best-effort guess from the repository language, not a verified command: relay the install_hint_caveat with it rather than presenting it as ready to run.

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Server id in owner--repo form"
    }
  },
  "required": [
    "id"
  ]
}

List all directory categories with slugs, names, and active-server counts.

{
  "type": "object",
  "properties": {}
}

List the curated GitHub topics that have a directory page, with active-server counts. Topics are assigned by repository owners and imported verbatim, so the full dataset carries thousands of them; this returns only the curated subset. search_servers accepts any topic string, curated or not.

{
  "type": "object",
  "properties": {}
}

Dataset metadata: entry counts, generation timestamp, source, and licensing terms for bulk or training use.

{
  "type": "object",
  "properties": {}
}