https://groundcheck.seiche.info/attest-delivery
Signed delivery receipts for agentic commerce: submit what a paid service returned (plus its x402 settlement receipt and advertised schema) and receive an offline-verifiable Ed25519 attestation binding payment to delivery to grounded content — schema conformance, machine-verified claim verdicts, and a neutral accountability trail for disputes between agents and the services they pay.
#44
$0.05
1
1
Points earned against points available, biggest lever first.
| Rank | Service | Score | Volume | Price |
|---|---|---|---|---|
| #1 | 54 | 86 txns | $0.01 | |
| #3 | ASN Lookup−24 | 49 | 82 txns | $0.01 |
| #4 | 48 | 65 txns | $0.0030 |
| #5 | Toll402−21 | 46 | 84 txns | $0.0010 |
| #6 | 44 | 46 txns | $0.01 |