IRONCLAW Bitcoin Blockchain MCP server — 17 tools for AI agents. Real full node data via x402 USDC micropayments.
SaferSkills independently audited X402 Btc Node (Agent Skill) and scored it 100/100 (green). The audit ran 55 deterministic rules across Security, Supply Chain, Maintenance, Transparency, and Community; it found 0 high-severity and 0 lower-severity findings. The full rule-by-rule trace and per-finding evidence are below. Free, methodology-open.
Findings & checks · 0 flagged
Every scanned point with the score it earned and what moved between them.
First recorded scan — no prior version to compare against.
The primary manifest — the file an agent reads to learn what this artifact does.
<div align="center"> <h1>🥩 IRONCLAW BTC Node</h1> <p><strong>Bitcoin Blockchain Data — 17 MCP Tools for AI Agents</strong></p> <p>Real full node data via x402 micropayments in USDC on Base mainnet.</p> <p><strong>3 free tools · 14 paid at $0.001 each · No API keys · No subscriptions</strong></p>
<p> <a href="LICENSE"><img src="https://img.shields.io/badge/License-MIT-green.svg" alt="MIT License"></a> <a href="https://btcnode.uk"><img src="https://img.shields.io/badge/Status-Live-brightgreen" alt="Live"></a> <a href="https://glama.ai/mcp/servers/cariohca-ux/x402-btc-node"><img src="https://img.shields.io/badge/Glama-Listed-blue" alt="Glama"></a> <a href="https://mcp.so/server/ironclaw-btc-node"><img src="https://img.shields.io/badge/mcp.so-Listed-blue" alt="mcp.so"></a> <img src="https://img.shields.io/badge/Bitcoin-F7931A?logo=bitcoin&logoColor=white" alt="Bitcoin"> <img src="https://img.shields.io/badge/MCP-Server-blue" alt="MCP Server"> <img src="https://img.shields.io/badge/x402-Enabled-8A2BE2" alt="x402"> <img src="https://glama.ai/mcp/servers/cariohca-ux/x402-btc-node/badges/card.svg" alt="Glama Card" style="max-width:250px"> <img src="https://img.shields.io/badge/USDC-Base-0052FF" alt="USDC Base"> </p> </div>
Add to your claude_desktop_config.json or any MCP client:
{
"mcpServers": {
"btc-node": {
"type": "sse",
"url": "https://mcp.btcnode.uk/sse"
}
}
}That's it. No install. No API keys. No setup. Free tools work immediately.
| Tool | Description | Cost |
|---|---|---|
btc_info | Blockchain info (block height, difficulty, peers) | FREE |
btc_fees | Fee rate estimates (high/medium/low sat/vB) | FREE |
btc_mempool | Mempool status (pending tx, size MB) | FREE |
# Try them right now — no payment, no API key
curl https://btcnode.uk/api/info
curl https://btcnode.uk/api/fees
curl https://btcnode.uk/api/mempool| Tool | Description | Cost |
|---|---|---|
btc_tx | Transaction lookup by hash | $0.001 |
btc_addr | Address portfolio (balance, UTXOs, history) | $0.001 |
btc_trace | Transaction flow tracing (2 hops) | $0.001 |
btc_fees_predict | Fee rate prediction | $0.001 |
btc_whales | Large Bitcoin movement alerts (10K+ BTC) | $0.001 |
sec_insider | SEC insider trades (Form 4/3/5) | $0.001 |
web_scrape | URL to clean markdown | $0.001 |
ai_summarize | AI text summarization | $0.001 |
systems_theory | Systems theory analysis (6 lenses) | $0.001 |
game_theory | Game theory analysis | $0.001 |
capital_flows | Capital flow tracing across markets | $0.001 |
reddit_hot | Hot posts from any subreddit | $0.001 |
reddit_search | Search Reddit by keyword | $0.001 |
reddit_trending | Trending topics on Reddit | $0.001 |
Paid tools use x402 protocol — pay $0.001 USDC per call on Base mainnet. Your wallet approves the payment directly in the MCP client.
MCP Client (Claude Desktop, Cursor, etc.)
│
▼ SSE (mcp.btcnode.uk/sse)
┌──────────────┐
│ MCP Server │ 17 tools, x402 payment middleware
└──────┬───────┘
│ HTTP API
┌──────┴───────┐
│ BTC API │ REST endpoints, paywall enforcement
└──────┬───────┘
│ RPC
┌──────┴───────┐
│ Bitcoin Core │ Full node (953K+ blocks, 10 peers)
│ LND │ Lightning Network (12K sats)
└──────────────┘git clone https://github.com/cariohca-ux/x402-btc-node.git
cd x402-btc-node
npm install
cp .env.example .env
# Edit .env with your settings
node mcp-server.mjsRequirements: Node.js 18+, a synced Bitcoin Core node (or use the hosted endpoint at btcnode.uk).
| Platform | Status | URL |
|---|---|---|
| Glama | ✅ Live | glama.ai/mcp/servers/cariohca-ux/x402-btc-node |
| mcp.so | ✅ Live | mcp.so/server/ironclaw-btc-node |
| PayAPI Market | ✅ Live | payapi.market |
| MCP Registry | 🔄 Auto-published via PayAPI | registry.modelcontextprotocol.io |
MIT — do what you want. Built by cariohca-ux. Bitcoin data served from a real full node.
~30 seconds. Free. No account. Every finding cites a rule and a line of evidence.