CRC-32, CRC-32C, Adler-32, FNV-1/1a (32 and 64 bit) and MurmurHash3 x86_32 of te
CRC-32, CRC-32C, Adler-32, FNV-1/1a (32 and 64 bit) and MurmurHash3 x86_32 of text or hex bytes. Not cryptographic.
Answeringour last check, 2026-10-21
1 of 1checks answered this week
885 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://security-math.x402tookit.com/checksum
| Category | Everything else |
|---|---|
| Provider host | security-math.x402tookit.com |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| 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 |
|---|---|---|---|---|
| 2026-10-21 | valid payment request | 402 | $0.02 | 885 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"algorithm": "all",
"data": "123456789"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"algorithm": {
"description": "One of crc32, crc32c, adler32, fnv1-32, fnv1a-32, fnv1-64, fnv1a-64, murmur3-32 or all (default)",
"type": "string"
},
"data": {
"description": "Text (UTF-8) or, with inputType=hex, bytes written as hex (up to 4000 characters)",
"type": "string"
},
"inputType": {
"description": "text (default) or hex",
"type": "string"
},
"seed": {
"description": "MurmurHash3 seed, 0 to 4294967295 (default 0)",
"type": "number"
}
},
"required": [
"data"
],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"asOf": {
"type": [
"null",
"string"
]
},
"byteLength": {
"type": [
"null",
"number"
]
},
"degraded": {
"type": [
"boolean",
"null"
]
},
"disclaimer": {
"type": [
"null",
"string"
]
},
"hexInput": {
"type": [
"null",
"string"
]
},
"notChecked": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"reasons": {
"items": {
"type": "string"
},
"type": [
"array",
"null"
]
},
"results": {
"properties": {
"adler32": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"crc32": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"crc32c": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"fnv1-32": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"fnv1-64": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"fnv1a-32": {
"properties": {
"decimal": {
"type": [
"null",
"string"
]
},
"hex": {
"type": [
"null",
"string"
]
}
},
"type": [
"null",
"object"
]
},
"fnv1a-64": {
"properties": {
"decimal": {
"type": [
"null",
"string"