TraceFast live Ethereum data
TraceFast live Ethereum data: the implementations a proxy contract has been observed delegating to — from its EIP-1167 bytecode, its EIP-1967 implementation or beacon slot, or its OpenZeppelin v1 slot — newest first, each with the blocks it was seen at and whether it has since been replaced. Path address: The proxy contract address, `0x`-prefixed, 40 hex characters, any case. Docs: https://docs.tracefast.xyz/api/contract-proxy.md
Answeringour last check, 2026-10-01
1 of 1checks answered this week
36 msmedian answer time
$0.02listed price per call
$0.02price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://mpp.tracefast.xyz/api/v1/chains/1/contracts/:address/proxy
| Category | Market data |
|---|---|
| Provider host | mpp.tracefast.xyz |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-01 | valid payment request | 402 | $0.02 | 36 ms |
Example input (from the provider)
{
"method": "GET",
"pathParams": {
"address": "0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48"
},
"queryParams": {},
"type": "http"
}
Promised output schema (from the provider)
{
"properties": {
"input": {
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"pathParams": {
"type": "object"
}
},
"required": [
"method"
]
}
}
}