Vextorium
Which contracts a wallet has allowed to move its ERC-20 tokens: checks the chain's main tokens (or the ones you pass) over recent blocks plus common spenders (Uniswap routers, Permit2), returning the live allowance and flagging unlimited on
Go to this service →Our latest check (2026-10-11)
- Answering
- Yes — valid x402 payment terms
- Time to answer
- 89 ms
- Price
- $0.005 per call
- Paying buyers, last 30 days
- 2 (directory's own records)
- Paid calls, last 30 days
- 2
- Category
- Blockchain reads
- Address
- https://api.vextorium.com/v1/token-approvals
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/2fd376fec285.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).