x402 Credential Verify
A paid check, on a host this page does not run.
metaCAMPUS still writes only a fingerprint. The Algorand Global x402 Challenge entry is a separate HTTPS API: unpaid requests get HTTP 402, and a settled MainNet USDC payment is what returns a credential-hash result.
Competition-ready for unpaid 402 and discovery. One real MainNet settle still required for full leaderboard eligibility.
What a caller can use
- Paid route
- POST /v1/credential/verify
- Free health
- GET /health
- Network
- Algorand MainNet
- USDC ASA
- 31566704
- Facilitator
- https://facilitator.goplausible.xyz
- Challenge tag
- x402-global-challenge
- Merchant payTo
- I4ZBH6RZRTFQN6DSTYJESIGK4VPSMDTXSXJEYEVBADVDQFSOQR4OV55BVE
payTo is the public merchant address. No private keys are on this page.
Try the unpaid door
Free health
curl -sS https://metacampus-x402-verify.vercel.app/health
Expect ok and payTo configured. No secrets.
Unpaid verify
curl -si -X POST https://metacampus-x402-verify.vercel.app/v1/credential/verify \
-H 'content-type: application/json' \
-d '{"hash":"a1b2c3d4e5f6789012345678abcdef01"}'Expect HTTP 402, scheme exact, and extra.tag x402-global-challenge.
Source: metacampus-org/metacampus-x402-verify. Challenge: Algorand Global x402. Demo: recorded walkthrough.