Deterministic developer utilities, one op per call
Deterministic developer utilities, one op per call: hash (md5, sha1, sha256, sha512, sha3-256), hmac, jwt_decode (header, payload, expiry, optional HS256 check), uuid4, base64_encode, base64_decode, url_parse, tz_convert (IANA zones with DST) and unix_to_iso. Use this when an agent needs a quick, verifiable transform without shipping its own library. Pure Node, no upstream, no model inference, nothing stored. Free sample at /api/dev-utils/sample.
Answeringour last check, 2026-10-20
1 of 1checks answered this week
438 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
POST https://tienda.textokit.store/api/dev-utils
| Category | Code and developer |
|---|---|
| Provider host | tienda.textokit.store |
| Networks | eip155:8453 |
| 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 |
|---|---|---|---|---|
| 2026-10-20 | valid payment request | 402 | $0.001 | 438 ms |
Example input (from the provider)
{
"body": {
"algorithm": "sha256",
"op": "hash",
"value": "hello world"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"algorithm": {
"description": "Hash algorithm for hash and hmac (default sha256).",
"enum": [
"md5",
"sha1",
"sha256",
"sha512",
"sha3-256"
],
"type": "string"
},
"from": {
"description": "IANA source time zone for tz_convert (default UTC).",
"maxLength": 64,
"type": "string"
},
"op": {
"description": "Operation to run.",
"enum": [
"hash",
"hmac",
"jwt_decode",
"uuid4",
"base64_encode",
"base64_decode",
"url_parse",
"tz_convert",
"unix_to_iso"
],
"type": "string"
},
"secret": {
"description": "Secret for hmac or for optional HS256 verification in jwt_decode.",
"maxLength": 4096,
"type": "string"
},
"to": {
"description": "IANA target time zone for tz_convert (default UTC).",
"maxLength": 64,
"type": "string"
},
"value": {
"description": "Input text, token, URL, timestamp or local datetime (depends on op).",
"maxLength": 20000,
"type": "string"
}
},
"required": [
"op"
],
"type": "object"
},
"bodyType": {
"const": "json",
"type": "string"
},
"method": {
"const": "POST",
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"body"
],
"type": "object"
},
"output": {
"properties": {
"algorithm": {
"type": "string"
},
"base64": {
"type": "string"
},
"hex": {
"type": "string"
},
"inputLength": {
"type": "number"
},
"op": {
"type": "string"
},
"readAt": {
"type": "string"
}
},
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}