Explains any Base or Ethereum transaction in plain English
Explains any Base or Ethereum transaction in plain English: who sent what to whom, which tokens/NFTs moved, the function called, success/failure and fee — plus the structured decoded data.
Answeringour last check, 2026-10-18
1 of 1checks answered this week
1515 msmedian answer time
$0.03listed price per call
$0.03price 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://api.checkpoint402.com/v1/tx-explain
| Category | Market data |
|---|---|
| Provider host | api.checkpoint402.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 3 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-18 | valid payment request | 402 | $0.03 | 1515 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"chain": "base",
"hash": "0xcbb626797fd53a67c9342c1541bc5e56a447b77a3efe490b5d7b2876be3b7205"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"chain": {
"description": "Chain (default base)",
"enum": [
"base",
"ethereum"
],
"type": "string"
},
"hash": {
"description": "Transaction hash (0x + 64 hex chars)",
"type": "string"
}
},
"required": [
"hash"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}