| Availability (valid 402 returned) | 100.0% of 70 probes |
| Median 402 handshake | 139ms |
| p90 handshake | 149ms |
| Catalog price (advertised) | $0.02 |
| Live price (median demanded) | $0.02 |
| Price status | match |
| Protocol | x402 v2 |
| Category (our classification) | content-media |
| Payment receiver | 0x2880…4E5E · stable since Jul 12 |
| Base USDC inflow to this receiver wallet (30d, all sources — not just x402) | shared receiver wallet — total inflow is not attributable to this domain alone |
| Second vantage | confirmed 402 from a second network path (Cloudflare edge), 2h ago |
| Discovery (.well-known/x402) | present |
| Catalog volume (their metric) | 1 calls/30d |
| /v1/accessible-transcript-html | $0.01 | not yet probed |
| /v1/audio-description-script | $0.02 | not yet probed |
| /v1/audio-only-version | $0.03 | not yet probed |
| /v1/audiogram-render | $0.02 | not yet probed |
| /v1/av-sync-offset | $0.02 | not yet probed |
| /v1/background-voice-detect | $0.02 | not yet probed |
| /v1/burned-subtitle-extract | $0.03 | not yet probed |
| /v1/caption-cefr | $0.01 | not yet probed |
| /v1/caption-contrast | $0.03 | not yet probed |
| /v1/caption-drift-fix | $0.02 | not yet probed |
and 40 more listed paths
grade evidence: hourly probes of /v1/audiogram-render. 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 50 products; the grade is evidence from a small sample of them.
The audio window (up to 60 s, any audio file or the audio track of a video) drives an ffmpeg 6.1 showwaves waveform (mode cline, line, p2p or point, square-root amplitude scale, mono mix) in a band across the middle of the frame. Captions come as a cue …
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 ton.halowerk.com? Dispute this rating. Scores are opinions based on automated measurements at the stated times.