How do I install the X402 Bazaar Bridge skill?

Run npx skillmds@latest add lord1egypt/x402-bazaar-bridge in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is X402 Bazaar Bridge safe to use?

This skill has not completed SkillMD's automated safety review yet. Capability flags: makes network calls. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with X402 Bazaar Bridge?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is X402 Bazaar Bridge free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published X402 Bazaar Bridge?

Lord1Egypt (@lord1egypt) published this skill. Their other Agent Skills are listed on their SkillMD profile.

X402 Bazaar Bridge by lord1egypt — Agent Skill

Name: X402 Bazaar Bridge
Rating: 4.2 (5 reviews)
Author: Lord1Egypt

File contents

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...d643fc on 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

---name: x402-bazaar-bridgedescription: 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 BridgeFind and buy data from the Coinbase x402 Bazaar. Pay-per-request in USDC on Base. No API keys, no subscriptions.## Usage```bash# Search for Bitcoin node APIsnode 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.uknode scripts/bazaar_bridge.js resolve "bitcoin fee rates"# Check daily budgetnode 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...d643fc` on Base mainnet USDC.## SecurityRequires `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

Frequently asked questions

X402 Bazaar Bridge