Chit402
x402Grade BLast checked 3 hours ago
POST https://api.xfuel.app/v1/chat/completions
Signed spend receipts for agent x402 payments — who paid which call, verifiable by a third party. Treasury desk and possession book for agent spend — export, policy, evidence. POST /v1/chat/completions is the x402 USDC door on Base and Solana. Returns signed receipt + public verify_url. Paying this host is real mainnet USDC.
Price$0.002per model request · paid in USD on Base
Uptime100%
4/4 probes · 712 ms
Score78Grade B
Paid usage, 30 days6payers · 14 calls
How to buy
This endpoint takes pay-per-call payments over x402. Call it once without paying to see its live price; any x402 client then pays and retries automatically.
curl -i -X POST "https://api.xfuel.app/v1/chat/completions"
# HTTP/1.1 402 Payment Required: price, asset and payTo are in the responseRecent checks
| Checked (UTC) | Result | Status | Time | Live price |
|---|---|---|---|---|
| 2026-10-11 08:00 | Valid 402 | 402 | 690 ms | $0.002 |
| 2026-10-11 03:30 | Valid 402 | 402 | 734 ms | $0.002 |
| 2026-10-10 23:00 | Valid 402 | 402 | 589 ms | $0.002 |
| 2026-10-10 17:15 | Valid 402 | 402 | 2166 ms | $0.002 |
Receipts
No test purchases yet. Graded test purchases are next on our list; until then every number here comes from unpaid checks.
What a check proves