Generate CSPRNG bytes from the Web Crypto API, returned as hex, base64 or a UUID
Generate CSPRNG bytes from the Web Crypto API, returned as hex, base64 or a UUID. Never Math.random.
Answeringour last check, 2026-09-26
1 of 1checks answered this week
7540 msmedian answer time
$0.003103listed price per call
$0.003103price 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://fittings.sh/v1/crypto/random-bytes
| Category | Market data |
|---|---|
| Provider host | fittings.sh |
| Networks | eip155:8453 |
| Payment schemes | upto |
| 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 |
|---|---|---|---|---|
| 2026-09-26 | valid payment request | 402 | $0.003103 | 7540 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"bytes": 32,
"encoding": "hex"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"bytes": {
"description": "1-1024",
"type": "number"
},
"encoding": {
"description": "hex | base64 | uuid",
"type": "string"
}
},
"required": [],
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}