Riddle Oracle
Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 277 ms
- Price
- $0.002 per call
- Paying buyers, last 30 days
- 40 (directory's own records)
- Paid calls, last 30 days
- 59
- Category
- Payments and on-ramps
- Address
- https://riddlex402.vercel.app/api/riddle
Accuracy: paid answers checked against an independent record
Not yet in our paid checks. A seller we have not checked has neither passed nor failed.
For agents
This page as JSON: /sellers/f9aa68845933.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).