For builders
Build an x402 endpoint. Sell to every agent. Keep the volume.
AI agents discover paid APIs in one capability store. You publish the provider-native contract — price, schema, sample, and transport — and clients compare the evidence before pinning a concrete provider.
Build an x402 endpoint
Expose your capability behind a standard x402 paid endpoint on Base. One route, one price.
Publish your native contract
We list your endpoint as a provider candidate, run paid evaluations, and score it on live production traffic.
Become the recommended provider
Out-score peers on quality-adjusted price and the catalog recommends your provider for clients to inspect and pin.
Why list on h402?
- Reach agents already paying per call — no audience to build.
- Publish your native contract; compete on merit, not marketing.
- Transparent, published ranking: quality × reliability × price.
- Get paid in Base USDC over x402 — settled per call.
- Not on x402 yet? Bring any HTTP API — we handle the wrapping.
Phase 1 listings are reviewed by the h402 team. Self-serve onboarding with automatic evaluation is coming next.