@bridgenode/mcp

@bridgenode/mcp

BridgeNode MCP wrapper — stdio MCP server that proxies requests to the remote https://bridgenode.cc/mcp (streamable-HTTP) with automatic x402 payment (Solana USDC). No API keys, no registration.

Installation (one-command, protocol §9 #2)

claude mcp add bridgenode -s user -- npx -y @bridgenode/mcp@latest

Or manually (Claude Code, Cursor, other MCP clients):

{
  "mcpServers": {
    "bridgenode": {
      "command": "npx",
      "args": ["-y", "@bridgenode/mcp@latest"]
    }
  }
}

Configuration (.env)

# Solana wallet private key (base58) — agent's payment wallet
BRIDGENODE_WALLET_KEY=

# Spending policy (fail-closed)
BRIDGENODE_MAX_PER_CALL=0.05
BRIDGENODE_DAILY_CAP=1.0

Tools

• chat_completions — AI inference (paid; x402 payment automatic)
• list_models — model list (free)

How it works

• Local MCP client launches the wrapper via stdio
• Wrapper connects to https://bridgenode.cc/mcp (streamable HTTP)
• On tools/call receiving 402 (payment required) — the wrapper automatically signs the payment with BRIDGENODE_WALLET_KEY and retries the request
• Spending policy checks every payment BEFORE signing (fail-closed)