XFuel

{
  "$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"
        }
      ]
    }
  ]
}