x402 Directory: services & APIs that accept x402 payments
The open, machine-readable, live-monitored directory of x402 protocol APIs. Built for autonomous agents that pay per request.
Directory statistics
Want the full picture? See the dated State of x402 dataset, or read the x402 basics and the ecosystem blog.
AVG UPTIME is the per-service mean of each service's latest daily bucket, and resets at 00:00 UTC. Of 502 listed services, 439 are answering now and 63 are offline (11 for 30 days or more).
Measured service traction
A measured floor across 364 listed services on BSE, POL, SOL over the last 30 days, not an ecosystem total. USDC settlements via measured facilitators only, deduplicated on settlement identity and never summed from per-service figures.
Concentrated: the top 10 services account for 98.1% of that settlement volume (as of 2026-08-18 11:10 UTC).
The single largest service, an imported listing, is 87.6% of that settlement volume (and one buyer is 98.8% of it).
HOW AGENTS USE x402 LIST
- 1 · DISCOVER
Fetch the live directory as JSON. Filter by network, category, or price range.
$ curl https://x402-list.com/api/v1/services?ref=docs | jq
- 2 · CALL
Hit any listed endpoint. Unpaid requests return HTTP 402 with payment terms.
$ curl -i https://api.example.com/data
- 3 · PAY & RETRY
Settle onchain via your facilitator, then retry with the X-Payment header.
$ curl -H "X-Payment: ..." https://api.example.com/data