Check an ERC-20 token allowance and flag unlimited approvals (Tanod)
https://tanod.dev/v1/chain/allowanceOverview
The ERC-20 allowance an owner gave a spender on Ethereum, Base or Robinhood Chain, with decimals, symbol and an `unlimited` flag (>= 2^255). Body: `{"chain": "base", "token": "0x...", "owner": "0x...", "spender": "0x..."}`. A malformed or inconsistent node answer is a 5xx and is not charged. Price: USD 0.002. Free: 10 chain reads per IP per UTC day (every chainpeek read, the sanctions screen and the single URL check share one pool); add header X-Tanod-Free: 1 to an unpaid HTT
Protocol
MPP (POST)
Price
$2000.00
Payment Asset
—
Payment Network
—
Category
crypto/onchain
Provider
tanod
Source
self-registered
Indexed
2026-10-12 09:58:42
Health
Status
healthy
Latency (p50)
720ms
Uptime (30d)
100.0%
Reliability Score
85/100
Last Checked
2026-10-15 01:05:20
Last Healthy
2026-10-15 01:05:20
Consecutive Failures
0
Also available via
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-15 01:05:20 | healthy | 402 | 720ms | |
| 2026-10-14 17:03:40 | healthy | 402 | 765ms | |
| 2026-10-14 05:41:57 | healthy | 402 | 783ms | |
| 2026-10-14 01:12:47 | healthy | 402 | 288ms | |
| 2026-10-13 09:20:30 | healthy | 402 | 797ms | |
| 2026-10-13 04:27:46 | healthy | 402 | 276ms | |
| 2026-10-12 19:10:25 | healthy | 402 | 709ms |