{"servers":[{"server":{"$schema":"https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json","name":"io.github.XFuel-Lab/xfuel-mcp","description":"Submit AI inference to XFuel, pay per task (USDC via x402 or TFUEL), fetch/verify ZK proofs.","title":"XFuel","repository":{"url":"https://github.com/XFuel-Lab/xfuel-protocol","source":"github","subfolder":"xfuel-mcp"},"version":"0.1.1","websiteUrl":"https://github.com/XFuel-Lab/xfuel-protocol/tree/main/xfuel-mcp#readme","packages":[{"registryType":"npm","registryBaseUrl":"https://registry.npmjs.org","identifier":"xfuel-mcp","version":"0.1.1","transport":{"type":"stdio"},"environmentVariables":[{"description":"XFuel API base URL. Defaults to the hosted testnet demo.","format":"string","default":"https://api-testnet.xfuel.app","name":"XFUEL_API_URL"},{"description":"API key sent as X-API-Key. Defaults to the shared public demo key.","format":"string","isSecret":true,"default":"xfuel-demo","name":"XFUEL_API_KEY"},{"description":"Optional bearer token required on the HTTP transport (Authorization: Bearer <token>).","format":"string","isSecret":true,"name":"XFUEL_MCP_AUTH_TOKEN"},{"description":"Theta RPC URL enabling verify_proof's optional on-chain nullifier read.","format":"string","name":"XFUEL_RPC_URL"},{"description":"ZKVerifierSP1 contract address (paired with XFUEL_RPC_URL).","format":"string","name":"ZK_VERIFIER_ADDRESS"},{"description":"Funded payer private key that enables the pay_with_usdc tool. Moves USDC — keep secret; use a low-balance wallet.","format":"string","isSecret":true,"name":"XFUEL_PAYER_PRIVATE_KEY"}]}]},"_meta":{"io.modelcontextprotocol.registry/official":{"status":"active","statusChangedAt":"2026-07-09T08:39:04.072224Z","publishedAt":"2026-07-09T08:39:04.072224Z","updatedAt":"2026-07-09T08:39:04.072224Z","isLatest":true}}}],"metadata":{"count":1}}