A0nexus Bitcoin MCP Server

by a0nexus-bitio.github.A0Nexus-bit/a0nexus-bitcoin-mcpv0.1.4

Crypto (BTC/ETH) + ERCOT electricity data & forecasts as MCP tools. Pay-per-call via x402.

0Node.jsstdioofficial registry

context tax

queued

security

queued

cold start

queued

freshness

Maintained3mo ago

Install A0nexus Bitcoin MCP server

claude mcp add a0nexus-bitcoin -e BTCI_MCP_PRIVATE_KEY='<btci-mcp-private-key>' -- npx -y a0nexus-bitcoin-mcp

{
  "mcpServers": {
    "a0nexus-bitcoin": {
      "command": "npx",
      "args": [
        "-y",
        "a0nexus-bitcoin-mcp"
      ],
      "env": {
        "BTCI_MCP_PRIVATE_KEY": "<btci-mcp-private-key>"
      }
    }
  }
}

Add to ~/.cursor/mcp.json (global) or .cursor/mcp.json (project).

{
  "mcpServers": {
    "a0nexus-bitcoin": {
      "command": "npx",
      "args": [
        "-y",
        "a0nexus-bitcoin-mcp"
      ],
      "env": {
        "BTCI_MCP_PRIVATE_KEY": "<btci-mcp-private-key>"
      }
    }
  }
}

Settings → Developer → Edit Config (claude_desktop_config.json), then restart.

{
  "servers": {
    "a0nexus-bitcoin": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "a0nexus-bitcoin-mcp"
      ],
      "env": {
        "BTCI_MCP_PRIVATE_KEY": "<btci-mcp-private-key>"
      }
    }
  }
}

Add to .vscode/mcp.json in your workspace.

{
  "mcpServers": {
    "a0nexus-bitcoin": {
      "command": "npx",
      "args": [
        "-y",
        "a0nexus-bitcoin-mcp"
      ],
      "env": {
        "BTCI_MCP_PRIVATE_KEY": "<btci-mcp-private-key>"
      }
    }
  }
}

Add to ~/.codeium/windsurf/mcp_config.json.

Configuration

Variable	Required	Secret	Description
BTCI_API_URL	—	—	Base URL of the a0nexus API.
BTCI_MCP_PAYMENT	—	—	Set to 'real' to enable the paid tools (otherwise only the free tools work).
BTCI_MCP_PRIVATE_KEY	—	yes	Base wallet private key used to pay for paid tools when BTCI_MCP_PAYMENT=real.

Freshness

Maintained — last maintenance signal 3mo ago. The newest of the signals below sets the band.

Last commit (default branch)
2026-07-13 · 3mo ago · GitHub
Latest release
no data · GitHub
Package published
no data · npm/PyPI
Registry entry updated
2026-07-13 · 3mo ago · official registry · v0.1.4

FAQ

›How do I install the A0nexus Bitcoin MCP server in Claude Code?

Run: claude mcp add a0nexus-bitcoin -e BTCI_MCP_PRIVATE_KEY='<btci-mcp-private-key>' -- npx -y a0nexus-bitcoin-mcp. For Cursor, VS Code, Claude Desktop and Windsurf, use the install tabs above.

›Does A0nexus Bitcoin require an API key?

Yes. It expects BTCI_MCP_PRIVATE_KEY, of which 1 is a secret.

›Can I use A0nexus Bitcoin as a remote (hosted) MCP server?

No hosted endpoint is published; it runs locally over stdio.

›Is A0nexus Bitcoin in the official MCP registry?

Yes, as io.github.A0Nexus-bit/a0nexus-bitcoin-mcp.