io.github.emmanuel39hanks/coal

up checked 2026-11-11T06:37:57.004Z

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Publisher-provided title

Coal — Payments for AI agents

Publisher-provided description

Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.

Summary by lookupd

Lets an agent check wallet balances, search and buy products, create checkout sessions, and verify USDC payment receipts on Base.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http coal https://mcp.usecoal.xyz/api/mcp

Codex, remote (streamable-http)

codex mcp add coal --url https://mcp.usecoal.xyz/api/mcp

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "coal": {
      "url": "https://mcp.usecoal.xyz/api/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (13 tools)

Publisher-provided text

• discover_merchants THE DEFAULT FIRST CALL whenever the user wants to buy, get, fetch, grab, order, purchase, shop for, find, or browse anything (digital goods, ebooks, APIs, promp
• search_products Search products across all Coal merchants. Filter by name, max price, or tag. Returns a Markdown product grid with images. Use this when looking for something s
• get_merchant_profile Get the full profile of a Coal merchant including products (with images), paywalls, supported networks/tokens, and 0G Storage proof. Returns rendered Markdown.
• query_merchant_memory Ask a natural language question about a merchant's products, policies, or catalog. Powered by 0G Compute with Sealed Inference (TEE). Needs a Coal API key — set
• check_paywall Check whether an address has paid for a specific x402 paywall. Returns pricing info if not paid, or content access status if paid.
• create_checkout Create a Coal checkout session to pay for a product or amount. Settles in USDC on Base (~2s). Returns a checkout URL. Needs a Coal API key — set once via Claude
• get_checkout_status Check the payment status of a checkout session: pending, verifying, confirmed, expired, failed.
• verify_receipt Verify a payment receipt and see its 3-step proof trail: (1) Base TX, (2) 0G Storage receipt, (3) 0G Chain anchor.
• get_0g_health Check the live status of all 5 0G components: Storage, Chain, Compute, KV, DA.
• agent_wallet_status Check the USDC balance for your agent wallet (or any address). If `X-Coal-Agent-Key` is set in your Claude config header, this auto-resolves your wallet's addre
• pay_merchant Send USDC on Base to any merchant payout address (the `payoutAddress` field shown by discover_merchants — NOT the merchantId). Use this whenever the user has co
• download_product Retrieve / download / get the file for a digital product after the user paid for it. Use after `pay_merchant` succeeds for digital goods (PDFs, ebooks, cheatshe
• setup_instructions Print step-by-step instructions for using Coal MCP from Claude / Cursor / any MCP client. Run this FIRST if you are unsure how to authenticate or which credenti

Details

• Version: 1.3.0
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 515 ms
• First indexed: 2026-11-01T09:29:08.441Z
• Last seen in registry: 2026-11-01T09:29:08.441Z
• Repository: https://github.com/emmanuel39hanks/coal
• Website: https://usecoal.xyz

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