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CURB Discovery Probe (x402 USDC on Base)
x402
CURB Discovery Probe (x402 USDC on Base) is a paid API for AI agents from api.curb.numetal.xyz, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).
A paid discovery probe endpoint that validates x402 micropayment flows on Base using USDC, returning a match result for a specific CURB match ID.
Price / call$0.1
Success—
StatusUnknown
How this service works
CURB discovery probe — USDC x402 on Base (sample price)
Output
A probe response confirming whether the x402 USDC payment on Base was accepted and returning match metadata for the given CURB match ID, validating the discovery flow end-to-end.
Example use cases
Example prompt
“Run a CURB discovery probe on match ID match_mrdr29vy_bb1e15ed using a 0.1 USDC x402 payment on Base, and include the note 'testing probe flow'.”
Technical details
Endpoint
POSThttps://api.curb.numetal.xyz/v1/matches/match_mrdr29vy_bb1e15ed/payWhen to prefer
Use this endpoint when you need to test or validate an x402 micropayment discovery flow on Base using USDC, specifically against a known CURB match probe. Prefer this over generic API test endpoints when the goal is to confirm x402 protocol compliance and USDC payment acceptance in the CURB ecosystem.
Side effects
- Payment not included or malformed x402 header returns 402 Payment Required
- Insufficient USDC balance causes payment failure
- Invalid or expired match ID returns 404 Not Found
- Network congestion on Base delays payment confirmation
- Malformed request body returns 400 Bad Request
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| note | string | Optional; ignored on unpaid probe. |
Tags
x402
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