verify — get an API key

Exact math/finance claim verification. Free trial credits, then pay-per-call in USDC (zero signup friction).

Click to mint a key with free trial credits.

Use it

curl -X POST $BASE/verify \
  -H "Authorization: Bearer YOUR_KEY" \
  -H "Content-Type: application/json" \
  -d '{"claim":"120+90+340+15 == 566"}'

Top up (USDC on Base, no KYC)

1. POST /topup/register {"key":"YOUR_KEY","wallet":"0xYourWallet"}
2. send USDC to the receive address (shown after signup) on Base
3. POST /topup/claim {"key":"YOUR_KEY"}   -> credits added automatically

Run paid samples in the browser: open workbench. Check balance: GET /balance; see recent charges/refunds: GET /usage with your Bearer key. Free demo (no key): playground.

Top up from the browser: open top-up page.