io.github.cyanheads/inaturalist-mcp-server

io.github.cyanheads/inaturalist-mcp-server

Search iNaturalist sightings, identification threads, phenology, and look-alike species.

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Connect this server

Add this to your MCP client config — claude_desktop_config.json (Claude Desktop) or .cursor/mcp.json (Cursor).Suits: Claude Desktop · Cursor.

{
  "mcpServers": {
    "inaturalist-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/inaturalist-mcp-server@0.3.2"
      ],
      "env": {
        "MCP_LOG_LEVEL": "info",
        "INATURALIST_CLAMP_LIMITS": "true",
        "INATURALIST_MIN_REQUEST_INTERVAL_MS": "1100",
        "INATURALIST_MAX_CONCURRENT_REQUESTS": "4",
        "INATURALIST_DAILY_REQUEST_BUDGET": "9000"
      }
    }
  }
}
Environment variables
  • MCP_LOG_LEVELSets the minimum log level for output (e.g., 'debug', 'info', 'warn').
  • INATURALIST_CLAMP_LIMITSClamp oversized read limits and radius (20,040 km), and defer oversized by-id batches. Set false to restore strict rejection, including radius above 500 km.
  • INATURALIST_MIN_REQUEST_INTERVAL_MSMinimum spacing between outbound request starts, in milliseconds. The default holds the sustained rate near 54 requests per minute, under the 60 the upstream asks for and well under its 100 ceiling.
  • INATURALIST_MAX_CONCURRENT_REQUESTSMaximum outbound requests in flight. Separate from the start interval: spacing bounds the sustained rate, this bounds the burst so one slow call does not stall the lane.
  • INATURALIST_DAILY_REQUEST_BUDGETOutbound requests allowed per UTC day, counted in-process. The default sits under the 10,000 per day the upstream asks for, and exhaustion fails loudly rather than degrading silently. The counter is per process and resets on restart.

A starting point — check the repository for exact arguments and setup. Restart your client after editing the config.

Category
Developer Tools
Version
0.3.2
Registry
active
Published
11/1/2026

Remotes

  • streamable-httphttps://inaturalist.caseyjhand.com/mcp

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