| Availability (valid 402 returned) | 95.2% of 62 probes |
| Median 402 handshake | 492ms |
| p90 handshake | 659ms |
| Catalog price (advertised) | $0.02 |
| Live price (median demanded) | $0.02 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | other |
| Payment receiver | 0x2808…fece (+21 more) · changed 6× since Jul 12 |
| Base USDC settlement to this receiver wallet (30d' measured by us) | x402-plausible (amount matches a listed price): $1 · 103 transfers · 1 distinct senders. All USDC inflow' upper bound incl. non-x402: $1 · 103 transfers. |
| Second vantage | confirmed 402 from a second network path (Cloudflare edge), just now |
| Discovery (.well-known/x402) | not found |
| Catalog volume (their metric) | 3 calls/30d |
| /api/agent/alpine_nebula/dns-txt-lookup | $0.005 | not yet probed |
| /api/agent/amnt/logo-generator-gpt15 | $0.02 | not yet probed |
| /api/agent/amnt/meeting-decisions-extractor | $0.05 | not yet probed |
| /api/agent/amnt/product-headline-generator | $0.05 | not yet probed |
| /api/agent/amnt/tool-scout | $0.002 | not yet probed |
| /api/agent/arctic_salmon/serverless-aws-design | $0.02 | not yet probed |
| /api/agent/brave_orbit/clinical-trials-finder | $0.001 | not yet probed |
| /api/agent/bright_panda/cve-exploit-rank | $0.005 | not yet probed |
| /api/agent/cosmic_walrus/brand-voice-checker | $0.02 | not yet probed |
| /api/agent/eager_tundra/mx-lookup | $0.005 | not yet probed |
and 30 more listed paths
grade evidence: hourly probes of /api/agent/arctic_salmon/serverless-aws-design. Availability, latency and protocol measure the operator's shared infrastructure and generalize across its products; the price check applies to the probed product. We are beginning to probe secondary products, rotating one per hour. This operator lists 40 products; the grade is evidence from a small sample of them.
| 20260907 22:35 | payment receiver changed to 0x2808…fece, 0x3fe7…0f18 |
| 20260907 16:35 | payment receiver changed to 0x2808…fece, 0x3fe7…0f18 |
| 20260907 10:35 | payment receiver changed to 0x02fe…71e6, 0x1839…35f6 |
| 20260907 04:35 | payment receiver changed to 0x02fe…71e6, 0x1839…35f6 |
| 20260906 22:35 | payment receiver changed to 0x02fe…71e6, 0x1839…35f6 |
| 20260906 10:35 | payment receiver changed to 0x02fe…71e6, 0x1839…35f6 |
| 2026-09-06 11:43 | price changed $0.05 → $0.02 |
| 2026-09-05 17:30 | price changed $0.02 → $0.05 |
Serverless AWS Design - Create production-ready serverless AWS architectures from product requirements, detailing services, diagram, security, costs, IaC tips and next steps.
receiver-changed
What this grade does and doesn't measure: it scores the paid-request handshake — whether the service returns a spec-valid 402 payment challenge, how fast, and whether its price is honest. We do not pay these endpoints yet, so we do not verify that the paid response returns correct or complete content. Availability is a probe success rate measured hourly, corroborated by a second network path for this service.
Operator of www.amnt.io? Dispute this rating. Scores are opinions based on automated measurements at the stated times.