Blocklens MCP Server: Install & Setup

Install Blocklens in Claude Code

Claude Code

claude mcp add blocklens -e BLOCKLENS_API_KEY=... -- npx -y blocklens-mcp-server

mcp.json (Claude Desktop, Cursor, VS Code, Windsurf)

{
  "mcpServers": {
    "blocklens": {
      "command": "npx",
      "args": [
        "-y",
        "blocklens-mcp-server"
      ],
      "env": {
        "BLOCKLENS_API_KEY": "..."
      }
    }
  }
}

Replace each ... with your own value.

Frequently asked questions

What does the Blocklens MCP server do?

Bitcoin on-chain analytics — 109 metrics: MVRV, SOPR, NUPL, HODL Waves, CDD, cycles & more

Is the Blocklens MCP server free?

The server is free, but you will likely need an account. The server itself is free, but it connects to a service that needs an account or API key, which may have paid tiers. Check the provider for current pricing.

Does Blocklens run locally or remotely?

Local. Runs on your machine (stdio). You install it with npx, uvx, Docker or from source.

How do I add Blocklens to Claude Code?

Run: claude mcp add blocklens -e BLOCKLENS_API_KEY=... -- npx -y blocklens-mcp-server

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