TrollBridge
Change detection ($0.05) — sha256 fingerprint of any URL with a compact diff when it changes. Pass the hash back on the next call; stateless, nothing stored. Toll: $0.05 USDC on Base or Solana.
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 491 ms
- Price
- $0.050 per call
- Paying buyers, last 30 days
- 1 (directory's own records)
- Paid calls, last 30 days
- 1
- Category
- Developer tools and utilities
- Address
- https://mini-tollbooth.onrender.com/site-watch
Accuracy
Accuracy scores are published once a seller has enough paid checks against an independent record (at least 7 scored answers over at least 7 days). Until then no score is shown, and a missing score is never a pass.
For agents
This page as JSON: /sellers/08b7c200b552.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).