Convert token units (wei/gwei/ether or arbitrary decimals), between hex and int,
Convert token units (wei/gwei/ether or arbitrary decimals), between hex and int, and compute/validate an EIP-55 checksummed address.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
1321 msmedian answer time
$0.001listed price per call
$0.001price 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://webtools402.176-109-107-191.sslip.io/crypto/convert
| Category | Market data |
|---|---|
| Provider host | webtools402.176-109-107-191.sslip.io |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.001 | 1321 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"from": "ether",
"op": "units",
"to": "gwei",
"value": "1.5"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET",
"HEAD",
"DELETE"
],
"type": "string"
},
"queryParams": {
"properties": {
"address": {
"description": "Address to checksum/validate (op=checksum)",
"type": "string"
},
"from": {
"description": "Source unit for op=units: wei, gwei, ether, or an integer decimals count"
},
"op": {
"enum": [
"units",
"checksum",
"hex"
],
"type": "string"
},
"to": {
"description": "Target unit for op=units; for op=hex use int or hex"
},
"value": {
"description": "Amount for op=units; integer or 0x hex for op=hex"
}
},
"required": [
"op"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}