Trustbench MCP Server

@lithvall

代码仓库

基本信息

分类

其他

传输方式

stdio

作者

lithvall

提交者

Johan Lithvall

关于 Trustbench MCP Server

x402 provider rankings + Ed25519-signed payment receipts + signature verification (3 tools).

Trustbench MCP Server 配置

使用下面的配置,将此服务器添加到你的 MCP 客户端。

{
  "mcpServers": {
    "trustbench": {
      "command": "npx",
      "args": [
        "-y",
        "@trustbench/mcp"
      ]
    }
  }
}

Trustbench MCP Server 工具

Get TrustBench liveness rankings for x402 providers by capability. Returns a scored list of providers with latency and success-rate telemetry. Methodology note: scores are derived from HEAD-probe liveness checks (3 samples from one host), not a rigorous benchmark. See trustbench.io/methodology. Output: returns a JSON array. Each object has name (string, provider name), score (number 0-100, composite liveness score), latency_p50 (number, ms), success_rate (number 0.0-1.0, last 7 days), endpoint (string, URL), capabilities (array of strings).

Fetch a TrustBench routing receipt by ID. Receipts are immutable, Ed25519-signed records of a routing or payment event. Use to verify what was paid, to whom, for what capability, and what the on-chain settlement reference is. IDs start with rcpt_ (Phase 3) or rrcpt_ (Phase 4). Output: returns the signed receipt envelope as JSON. Phase 3 (rcpt_) returns a SignedReceipt with receipt (call metadata + settlement ref) and signature (Ed25519 over JCS-canonicalized receipt body). Phase 4 (rrcpt_) returns {receipt, signature} where receipt.paid contains routing details and signature covers the canonical envelope. To verify an envelope offline use the verify_receipt tool with the returned JSON, or @trustbench/verify-receipt npm.

Verify the Ed25519 signature on a TrustBench receipt. Two modes: (1) Lookup mode — pass receipt_id and the server fetches the receipt from trustbench.io and re-runs verification (handy when you only have an ID). (2) Offline mode — pass receipt_json (the full {receipt, signature} envelope an agent received from a third party) and the server verifies the Ed25519 signature against the published public key at trustbench.io/.well-known/trustbench-pubkey without trusting the database. Exactly one of receipt_id or receipt_json must be provided. Output: returns JSON with receipt_id, signature_valid (boolean), on_chain_verified (boolean, where present), signature_alg ("ed25519"), verify_url, pubkey_url. For non-server-mediated verification with no network round-trip, use the @trustbench/verify-receipt npm package.

概览

What is Trustbench?

TrustBench is the public registry, routing layer, and signed-receipt audit trail for x402 agent payments. It provides three read-only MCP tools—get_rankings, get_receipt, and verify_receipt—to query provider rankings, fetch routing receipts, and verify Ed25519 signatures. It is designed for developers building agent-to-agent payment workflows.

How to use Trustbench?

Install via npx -y @trustbench/mcp for stdio-based MCP hosts (Claude Desktop, Cursor, Cherry Studio, Kimi) or use the hosted Streamable HTTP endpoint at https://trustbench.io/mcp for browser-based MCP clients. No API key is required for any of the MCP tools.

Key features of Trustbench

Non-custodial — TrustBench never holds agent funds.
Three read-only tools: rankings, receipts, verification.
Ed25519 signature verification (lookup by ID or offline).
No API key required for MCP tools.
Supports both stdio and Streamable HTTP transports.

Use cases of Trustbench

Query live x402 provider rankings by capability (search, inference, data, media, infra).
Fetch a specific routing receipt by ID (rcpt_… or rrcpt_…).
Verify an Ed25519 signature on a receipt JSON envelope received from a third-party agent.

常见问题

What are the runtime dependencies for Trustbench?

Trustbench requires Node.js (via npx) for stdio installations, or any HTTP client for the Streamable HTTP endpoint.

Does Trustbench require an API key?

No. All three MCP tools are available without any API key.

Where are TrustBench receipts and rankings stored?

Receipts and rankings are stored on the TrustBench public registry; the server queries this registry on behalf of the user.

What transports does the MCP server support?

It supports stdio (for desktop MCP hosts) and Streamable HTTP (for browser-based clients).

Does TrustBench handle agent funds?

No. It is non-custodial throughout and never holds agent funds.

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