XFuel

Submit AI inference to XFuel, pay per task (USDC via x402 or TFUEL), fetch/verify ZK proofs.

What does this entry provide?

XFuel is an MCP server entry in ChatHome Skills, sourced from Official MCP Registry and scored 67/100. As a Model Context Protocol server, it exposes tools that MCP-compatible LLM clients such as Claude, Cursor, and Copilot can call directly, extending an agent's reach beyond its built-in capabilities. ChatHome Skills discovered this entry through its daily ingest of official registries and GitHub discovery queries, and re-verifies repository facts, freshness signals, and install metadata on every run. The quality score weighs official-registry presence, a working install command, license clarity, GitHub star trajectory, and repository freshness — the full formula is on the Sources page. The install command above is ready to copy. Review the last-pushed date and repository status before adding XFuel to a production agent workflow; the snapshot facts below are point-in-time values from the most recent ingest.

Snapshot facts

Source: Official MCP Registry
Quality: 67/100
Install method: npm
Repo: XFuel-Lab/xfuel-protocol
Repo updated: Jul 9, 2026

Install command

npx -y xfuel-mcp@0.1.1

Install method: npm

Review the upstream source before running this command.

GitHub project Homepage

Quality

Repo stars

Repo updated

Jul 9, 2026

How is this score calculated?

Weighted across six dimensions, scored 0-100.
Provenance (25): listed in an official or curated registry.
Installability (25): a runnable install command beats a declared transport, which beats a source checkout.
Maintenance (20): recency of the last push; archived entries score zero here.
Adoption (20): repository stars on a log curve.
Documentation (10) and description quality (10): parsed manifest or SKILL.md frontmatter, and a real description rather than a placeholder.

MCP manifest

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

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