Convert crypto units exactly
Convert crypto units exactly: wei, gwei, ether, lamports, SOL, satoshis, BTC and any token decimals, using integer math with no floating-point rounding errors.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
317 msmedian answer time
$0.01listed price per call
$0.01price 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://saylorinnovations.com/api/crypto/unit-convert
| Category | Market data |
|---|---|
| Provider host | saylorinnovations.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 2 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.01 | 317 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"amount": "1.5",
"from": "ether",
"to": "gwei"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"amount": {
"description": "non-negative decimal string, for example 1.5",
"type": "string"
},
"from": {
"description": "unit name (wei, gwei, ether, lamport, sol, satoshi, btc, usdc, ...) or decimals:N",
"type": "string"
},
"to": {
"description": "unit name or decimals:N",
"type": "string"
}
},
"required": [
"amount",
"from",
"to"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"amount": {
"description": "Amount",
"type": "string"
},
"exact": {
"type": "boolean"
},
"from": {
"description": "Start of the range",
"type": "string"
},
"from_decimals": {
"description": "From decimals",
"type": "number"
},
"note": {
"description": "Caveat or context for reading the result",
"type": "string"
},
"result": {
"description": "Result of the operation",
"type": "string"
},
"result_smallest_unit": {
"description": "Result smallest unit",
"type": "string"
},
"source": {
"description": "Data source the values come from",
"type": "string"
},
"to": {
"description": "End of the range",
"type": "string"
},
"to_decimals": {
"description": "To decimals",
"type": "number"
}
},
"required": [
"amount",
"from",
"from_decimals",
"to",
"to_decimals",
"result",
"result_smallest_unit",
"exact",
"note",
"source"
],
"type": "object"
},
"type": {
"const": "json",
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}