@bridgenode/mcp

Built for AI agents — no API keys, no registration, pay-as-you-go with Solana USDC via x402. Start free: free models and 2 free calls on paid models per client, no wallet required.

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)

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
# Optional — Solana wallet private key (base58). Needed only for PAID calls:
# free models and the 2 free trials work without it.
BRIDGENODE_WALLET_KEY=

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

Tools

• chat_completions — AI inference (free models run without payment; the first 2 calls to a PAID model are free per client, then x402 payment is automatic). Accepts OpenAI-style tools / tool_choice — the model's answer then carries tool_calls (the wrapper passes arguments through unchanged)
• list_models — model list (free)
• get_price_estimate — estimate cost of a chat request (free)

How it works

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

Links

• Website: https://bridgenode.cc
• Protocol: x402 V2 (docs.x402.org)
• npm: https://www.npmjs.com/package/@bridgenode/mcp

Python packages

Prefer Python? The same BridgeNode toolkit is on PyPI:

• Python SDK: pip install bridgenode-llm → https://pypi.org/project/bridgenode-llm
• CLI: pip install bridgenode-cli → https://pypi.org/project/bridgenode-cli
• Full toolkit (SDK + CLI): pip install bridgenode → https://pypi.org/project/bridgenode

Community

• Moltbook agent profile: https://moltbook.com/u/bridgenode_eli
• Discord: https://discord.gg/HUpVKxJxhG
• X (Twitter): https://x.com/eliBNx

⭐ Star this repo — it helps AI agents discover BridgeNode.