x402 lets AI agents pay for APIs with USDC — no keys, no subscriptions. But which services can you trust? x402Hub independently verifies every x402 API & MCP service (HTTPS, live protocol check, real usage) and ranks them by a neutral Trust Score. Agents can query it directly via a Discovery API.
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Maker
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Hey Product Hunt 👋
I've been watching the x402 ecosystem explode — Coinbase, Stripe, Visa, and the Linux Foundation are all in, and there are already 23,000+ services letting AI agents pay per call with USDC.
But there's a problem: how does an agent (or a developer) know which of those services actually work and can be trusted? Coinbase's Bazaar lists them, but shows no trust signal. So you're flying blind.
x402Hub fixes that. For every service, we independently check:
• Is the endpoint live and HTTPS?
• Does it actually return a valid x402 (HTTP 402) response?
• Is it being used right now (real 30-day settlements)?
…then combine those into a neutral Trust Score (A+ to F). No user reviews to game — just objective, publicly verifiable signals. It's transparent: every check is shown.
Right now it tracks 200 services, 145 of them verified, updated hourly from public data.
The part I'm most excited about: **agents can query it directly.**
`GET /api/discovery/search?q=OCR&minTrust=80&verified=true` → JSON.
That's the filter Bazaar doesn't give you: "find me a trustworthy OCR API." There's also an agent-card.json and llms.txt for discovery.
It's read-only and free — I'm genuinely trying to find out if this is useful before building more (reviews, MCP server, your own dashboards). So I'd love brutal feedback:
- Would you (or your agent) actually use a trust score for x402 services?
- What signal is missing?
Try it: https://x402.chain-ops.xyz
Discovery API: https://x402.chain-ops.xyz/api/d...
Thanks for taking a look 🙏
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the trust score system is a smart move, especially running real protocol checks instead of just slapping a badge on a listing. makes the whole agent economy feel a lot less like the wild west
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Maker
@nk_ll74322 Thanks! Glad you see the value. We're still iterating on the trust model—what protocol checks or trust signals would make you personally rely on it before using an x402 service?
the trust score system is a smart move, especially running real protocol checks instead of just slapping a badge on a listing. makes the whole agent economy feel a lot less like the wild west