SpellzCode — Ethereum contract check
https://agent-data-tools.revmesh2074.workers.dev/eth/is-contract?address=0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48Overview
Check whether a 0x address on Ethereum is a smart contract or a plain wallet: bytecode size, and whether it is an EIP-1167 minimal proxy and which implementation it points to. Use before sending funds or approving a spender; for a fuller risk verdict use check_counterparty. A malformed address is rejected with 400, uncharged.
Protocol
x402
Price
$0.01
Payment Asset
USDC
Payment Network
Base
Category
blockchain/onchain-data
Provider
Agent Data Tools
Source
self-registered
Indexed
2026-10-18 15:37:30
Health
Status
healthy
Latency (p50)
650ms
Uptime (30d)
100.0%
Reliability Score
87/100
Last Checked
2026-10-23 19:43:35
Last Healthy
2026-10-23 19:43:35
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-23 19:43:35 | healthy | 402 | 184ms | |
| 2026-10-23 03:29:48 | healthy | 402 | 91ms | |
| 2026-10-22 14:05:49 | healthy | 402 | 849ms | |
| 2026-10-21 21:09:11 | healthy | 402 | 2079ms | |
| 2026-10-21 01:17:50 | healthy | 402 | 441ms | |
| 2026-10-20 21:39:45 | healthy | 402 | 650ms |