provenance-mcp

Check the wash-traffic risk of Algorand x402 endpoints before your agent pays them.

📊 The x402 Trust Index — our free public data site: dated Bazaar Wash Report snapshots (Base) + reseller-signal audits for 38 API brands.

Leaderboards for machine-payable APIs rank by claimed volume, which is easy to inflate — self-dealing loops, fresh-wallet farms, metronomic bots. Provenance reads public on-chain payments and gives your agent a statistical estimate of whether an endpoint's revenue looks organic or manufactured, so it can decide before sending USDC. This server scores Algorand payees; the public data site's report covers Base. Scores are one operator's estimates — the methodology publishes the weights, the limits, and what has not been validated yet.

Tools

• check_endpoint_risk(address) — free quick verdict for any Algorand endpoint payTo address: risk level (low/medium/high/critical), 0–100 score, and the on-chain red flags (distinct-payer count, self-dealing payout loops, wallet ages, timing regularity, funding concentration).
• provenance_service_info() — service + paid-tier info.

Deep forensics are x402-paid on the same API: /score $0.05 · /report $0.50 (full 8-signal grade + facilitator drift) · /diligence $5.00.

Install

Claude Code

claude mcp add provenance -- npx -y provenance-mcp

Claude Desktop / any MCP client (mcpServers config):

{
  "mcpServers": {
    "provenance": {
      "command": "npx",
      "args": ["-y", "provenance-mcp"]
    }
  }
}

Then ask your agent: “check the wash risk of Algorand endpoint <ADDRESS>”.

How it works

The hosted Provenance engine indexes USDC (ASA 31566704) payments on Algorand mainnet, enriches payer wallets (age, first funder, asset diversity, rekey auth-addr), clusters them (union-find over funding + shared-key links), and runs 8 wash-detection signals. Scores are point-in-time snapshots, anchored on-chain for tamper-evidence. Methodology: signals, not accusations — a high score means the revenue pattern is consistent with self-dealing, not that the operator is guilty of anything.

• Env: PROVENANCE_API_URL to point at a different Provenance deployment.
• Free tier: 30 checks/hour/IP.

Guard your x402 client directly

Building an agent that pays over x402? provenance-guard wraps any x402-paying fetch and runs this same check automatically before any money moves — one line, zero dependencies:

import { createGuard } from "provenance-guard";
const guarded = createGuard().guardedFetch(fetchWithPayment);

MIT · Provenance — the trust layer for machine-payable endpoints.