fm.lightning/lightning-fm-mcp

Search Lightning FM's Nostr music catalog, look up artists, and check what's live now.

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": {
    "lightning-fm-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "lightning-fm-mcp@0.1.5"
      ],
      "env": {
        "LFM_NOSTR_RELAYS": "wss://relay.lightning.fm",
        "LFM_BLOSSOM_URL": "https://media.lightning.fm",
        "LFM_CACHE_TTL_MS": "60000"
      }
    }
  }
}

Environment variables

LFM_NOSTR_RELAYSComma-separated relay URLs to query. Only add a relay here if it gates writes the way relay.lightning.fm does (allowlisted artists only) — an unrestricted public relay hands back every other app's kind-31337 events too, not just Lightning FM's.
LFM_BLOSSOM_URLBlossom server audio/image hashes resolve against.
LFM_CACHE_TTL_MSHow long a fetched catalog/profile/now-playing snapshot is reused, in milliseconds, before the next tool call re-queries the relays.

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

Category: Search & Web
Version: 0.1.5
Registry: deprecated
Published: 8/20/2026

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