{"servers":[{"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"io.github.emmanuel39hanks/coal","description":"Payment rails for AI agents. Pay merchants in USDC on Base. Dual-protocol: x402 + OKX APP.","title":"Coal — Payments for AI agents","repository":{"url":"https://github.com/emmanuel39hanks/coal","source":"github","subfolder":"examples/coal-mcp-server"},"version":"1.3.0","websiteUrl":"https://usecoal.xyz","remotes":[{"type":"streamable-http","url":"https://mcp.usecoal.xyz/api/mcp","headers":[{"description":"Wallet private key (0x... 64-char hex). Signs payments via EIP-3009 on Base. Optional — read-only tools work without it.","isSecret":true,"name":"X-Coal-Agent-Key"},{"description":"Coal API key for create_checkout + query_merchant_memory. Get one at https://usecoal.xyz/console/keys. Optional.","isSecret":true,"name":"X-Coal-Api-Key"}]}]},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","statusChangedAt":"2026-05-07T14:00:33.260438Z","publishedAt":"2026-05-07T14:00:33.260438Z","updatedAt":"2026-05-07T14:00:33.260438Z","isLatest":true}}}],"metadata":{"count":1}}