Riddle Oracle
Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.
Listed — not yet verified
Visit website · Category: Infrastructure & Facilitators
What it does
Pay a micro-fee in USDC on Base mainnet to receive a riddle and its answer.
Audience: ai-agents, developers. Tags: oracle, riddle, micro-fee, mainnet.
Pricing
| Pricing model | per-request |
|---|---|
| Price hint | $0.002/request |
| Accepted tokens | USDC |
| Chain | base |
| Facilitator | coinbase-cdp |
How agents pay
- The agent sends a plain request and receives an HTTP 402 response describing the price and payment requirements.
- The agent signs a payment payload for the exact amount on base and attaches it to a retried request.
- The facilitator verifies and settles the payment, then the service returns the paid response.
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Facet hubs for this service
- Chain: Base services
- Facilitator: Coinbase Cdp profile
- Price band: Micro ($0.01 or less per request)
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Last updated: 2026-09-23
Last checked: 2026-09-28 — reachable. Weekly automated check, not continuous monitoring.