Observed arrival · 2026-10-14
Bellwether checks whether paid API endpoints deserve an agent’s money
A probe-and-score service for checking x402 endpoints before an AI agent pays to use them.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Developers running agents that buy APIs or data
- Worth noticing
- The example scorecard flags an `asOf` type mismatch, reports p50 and p95 latency, and includes post-payment failures.
Field notes
A displayed probe example shows a 0.004 USDC payment settled on Solana, 11 of 12 schema fields matching, and one empty response among 24 paid calls. Its latency figures are 412 ms at p50 and 1.3 seconds at p95 across five probes. These are presented as sample results; scheduled monitoring, report pages, alerts, and the JSON API are marked Planned.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
◎NicheUnusually specific use
One card from the complete issue