Exact unit conversion for crypto amounts
Exact unit conversion for crypto amounts: wei, gwei, ether, lamports, SOL, satoshis, BTC or a token with N decimals.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
2009 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://web3-tools.x402tookit.com/unit-convert
| Category | Market data |
|---|---|
| Provider host | web3-tools.x402tookit.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| 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 |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 2009 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"amount": "1.5",
"unit": "ether"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"amount": {
"description": "Plain decimal amount, for example 1.5 or 21000",
"type": "string"
},
"decimals": {
"description": "Token decimals 0 to 36, required when unit is token (USDC is 6)",
"type": "integer"
},
"unit": {
"description": "wei, kwei, mwei, gwei, szabo, finney, ether, lamport, sol, satoshi, btc or token",
"type": "string"
}
},
"required": [
"amount",
"unit"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"abiUint256": {
"type": [
"null",
"string"
]
},
"asOf": {
"type": [
"null",
"string"
]
},
"conversions": {
"properties": {
"ether": {
"type": [
"null",
"string"
]
},
"finney": {
"type": [
"null",
"string"
]
},
"gwei": {
"type": [
"null",
"string"
]
},
"kwei": {
"type": [
"null",
"string"
]
},
"mwei": {
"type": [
"null",
"string"
]
},
"szabo": {
"type": [
"null",
"string"
]
},
"wei": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"exceedsUint256": {
"type": [
"boolean",
"null"
]
},
"input": {
"properties": {
"amount": {
"type": [
"null",
"string"
]
},
"decimals": {
"type": [
"null",
"number"
]
},
"unit": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"rawHex": {
"type": [
"null",
"string"
]
},
"rawSmallestUnit": {
"type": [
"null",
"string"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"source": {
"type": [
"null",
"string"
]
},
"summary": {
"type": [
"null",
"string"
]
},
"verdict": {
"type": [
"null",
"string"
]
}
},
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}