● healthy
verification
Ed25519 signed pass or fail verdicts on deliverables, a witness tier that signs what a public URL showed, and payment verified reputation on merchant wallets. $0.01 to $5.00 per document, USDC on Base or Solana, no account. Manual: https://umpire.vimabrosta.com/manual
Category
verification
Chains
base, solana
Price
$0.2500 USDC / call
Quality grade
How grading works
B
68.5 / 100
Availability
40.0 / 40
Endpoint responded (HTTP 402)
Payability
20.0 / 20
- ✓ Answers a real HTTP 402 challenge
- ✓ Publishes a /.well-known/x402 descriptor
- ✓ Payment address on record
- ✓ Settlement network declared
- ✓ Price declared
Demand
8.5 / 40
3 distinct payers, 8 USDC transfers in the last 30 days
Owner verified
0.0 / 3
Nobody has claimed this listing yet
Endpoint last checked 6 h ago.
On-chain activity last read 12 d ago.
Availability and on-chain demand are both re-probed daily; the grade
updates automatically on the next pass.
How to call
cURL · x402-fetch / x402-axios will auto-handle 402
curl -X POST https://umpire.vimabrosta.com/v1/verdicts/witness/.well-known/x402.json
https://umpire.vimabrosta.com/.well-known/x402
Listed in
Directories this entry was found in.
submission