Google Chat MCP

{
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "name": "io.github.A1-x-Tech/mcp-google-chat",
  "description": "MCP server for the Google Chat API: spaces, messages, threads, reactions and memberships.",
  "title": "Google Chat MCP",
  "repository": {
    "url": "https://github.com/A1-x-Tech/mcp-google-chat",
    "source": "github"
  },
  "version": "1.0.0",
  "websiteUrl": "https://github.com/A1-x-Tech/mcp-google-chat#readme",
  "packages": [
    {
      "registryType": "npm",
      "registryBaseUrl": "https://registry.npmjs.org",
      "identifier": "mcp-google-chat",
      "version": "1.0.0",
      "transport": {
        "type": "stdio"
      },
      "environmentVariables": [
        {
          "description": "Google OAuth2 client id (refresh-token flow).",
          "name": "GOOGLE_CHAT_CLIENT_ID"
        },
        {
          "description": "Google OAuth2 client secret (refresh-token flow). Treat it as a secret.",
          "isSecret": true,
          "name": "GOOGLE_CHAT_CLIENT_SECRET"
        },
        {
          "description": "Google OAuth2 refresh token, exchanged for access tokens automatically. Treat it as a secret.",
          "isSecret": true,
          "name": "GOOGLE_CHAT_REFRESH_TOKEN"
        },
        {
          "description": "Static OAuth2 access token (~1h lifetime) — alternative to the refresh-token trio, e.g. a service-account (Chat app) token or for testing.",
          "isSecret": true,
          "name": "GOOGLE_CHAT_ACCESS_TOKEN"
        },
        {
          "description": "Fixed port for the loopback listener of the in-chat login (127.0.0.1 + PKCE). Set it when the client runs over SSH port forwarding; otherwise a free port is picked per login.",
          "name": "GOOGLE_CHAT_OAUTH_PORT"
        },
        {
          "description": "API root override.",
          "default": "https://chat.googleapis.com",
          "name": "GOOGLE_CHAT_API_BASE"
        },
        {
          "description": "Per-request timeout in milliseconds.",
          "default": "60000",
          "name": "GOOGLE_CHAT_TIMEOUT_MS"
        },
        {
          "description": "Retries on transient errors (429 always; 5xx/network for reads).",
          "default": "3",
          "name": "GOOGLE_CHAT_MAX_RETRIES"
        }
      ]
    }
  ]
}