TraceFast
TraceFast live Ethereum data: the whole call tree of a transaction, frame by frame in the order it ran, paged — no 1 000-frame cap. Path hash: Transaction hash, `0x`-prefixed, 64 hex characters, any case. Query limit: 1..=100, default 50; c
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 289 ms
- Price
- $0.200 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://mpp.tracefast.xyz/api/v1/chains/1/traces/:hash/frames
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/a469432681cf.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).