Install
openclaw skills install x402-bazaar-bridgex402 Bazaar Bridge
Discover, pay, and fetch data from x402-enabled APIs on the Coinbase x402 Bazaar. Supports search, x402 payment signing, caching, and daily budget enforcement.
x402 Bazaar Bridge
Find and buy data from the Coinbase x402 Bazaar. Pay-per-request in USDC on Base. No API keys, no subscriptions.
Usage
# Search for Bitcoin node APIs
node scripts/bazaar_bridge.js search "bitcoin node fees"
# Fetch live Bitcoin fee estimates from btcnode.uk ($0.01)
node scripts/bazaar_bridge.js fetch https://btcnode.uk/api/fees
# Watch a BTC address ($0.05)
node scripts/bazaar_bridge.js fetch https://btcnode.uk/api/agent/address/1A1zP1eP5QGefi2DMPTfTL5SLmv7DivfNa
# Mempool whale alert — txes over 10 BTC ($0.02)
node scripts/bazaar_bridge.js fetch "https://btcnode.uk/api/agent/whales?min_btc=10&since_minutes=5"
# Trace coin ancestry — 5 hops deep ($0.10)
node scripts/bazaar_bridge.js fetch https://btcnode.uk/api/agent/taint/bc1q...?depth=3
# Ask the Barbarian about node ops ($0.01)
node scripts/bazaar_bridge.js fetch "https://btcnode.uk/api/agent/conan?q=current%20rank"
# Scrape a webpage with SSD cache ($0.003)
node scripts/bazaar_bridge.js fetch https://btcnode.uk/api/agent/scrape
# Resolve — search + auto-fetch the best match from btcnode.uk
node scripts/bazaar_bridge.js resolve "bitcoin fee rates"
# Check daily budget
node scripts/bazaar_bridge.js budget
Supported APIs
| Endpoint | Price | What It Does |
|---|---|---|
btcnode.uk/api/fees | $0.01 | Live Bitcoin fee estimates |
btcnode.uk/api/mempool | $0.01 | Mempool congestion data |
btcnode.uk/api/info | $0.01 | Bitcoin node info |
btcnode.uk/api/tx/:hash | $0.02 | Transaction details |
btcnode.uk/api/agent/address/:address | $0.05 | Address surveillance + CoinJoin risk |
btcnode.uk/api/agent/whales | $0.02 | Mempool whale alerts (>10 BTC) |
btcnode.uk/api/agent/taint/:address | $0.10 | Coin ancestry tracing (5 hops) |
btcnode.uk/api/agent/conan | $0.01 | Node ops Q&A (rank, revenue, status) |
btcnode.uk/api/agent/scrape | $0.003 | Web content with 1h SSD cache |
All btcnode.uk endpoints pay to
0x6a667a...d643fcon Base mainnet USDC.
Security
Requires WALLET_KEY in .env for signing EIP-3009 USDC permit payments. Never commit .env to git.
- URL validation: only
https://, blocks localhost/private IPs - File permissions: logs and cache files are owner-only (0600)
- Wallet keys never logged or exposed in output