# Textokit Developer Utilities

> Textokit Developer Utilities is a paid API for AI agents from tienda.textokit.store, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-30).

Performs deterministic developer transforms per call: hashing (MD5/SHA variants), HMAC, JWT decoding, UUID4 generation, Base64 encode/decode, URL parsing, timezone conversion, and Unix-to-ISO timestamp conversion.

## Facts

- Endpoint: POST https://tienda.textokit.store/api/dev-utils?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-30
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/textokit-developer-utilities-d8a12458
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_p1Uq1129s-olyNkbRV4cZ

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability textokit-developer-utilities-d8a12458 -d '<json body>'
```

Example prompt: Can you hash the string 'hello world' using sha256 for me?

## When to prefer this

Choose this endpoint when an agent needs a quick, reliable, serverless cryptographic or data-transform primitive without shipping its own library or calling a general-purpose LLM. Ideal for deterministic operations where verifiability matters: hashing, HMAC signing, JWT inspection, UUID generation, Base64 encoding/decoding, URL parsing, and timezone conversion. Prefer over rolling custom code when operating in environments with no native library access, or when auditability of the transform is needed. Not appropriate for fuzzy/semantic operations — use a language model for those.

## Known failure modes

- Invalid or unknown op enum value returns an error
- Value exceeds maxLength 20000 characters
- Invalid IANA timezone string for tz_convert returns an error
- Malformed JWT token for jwt_decode returns parse error
- Missing required 'value' field for ops that need it
- Invalid algorithm enum for hash/hmac returns error

## How this service works

Servicios para trabajar con textos en Argentina: cartas de reclamo, resúmenes con citas, comparación, traducción y solicitudes. Pagá en pesos con Mercado Pago.

## Output

A JSON object containing the result of the requested operation, such as a hash digest string, decoded JWT fields (header, payload, expiry status), a UUID4 string, Base64-encoded or decoded string, parsed URL components, or converted ISO 8601 datetime string.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "op": {
   "enum": [
    "hash",
    "hmac",
    "jwt_decode",
    "uuid4",
    "base64_encode",
    "base64_decode",
    "url_parse",
    "tz_convert",
    "unix_to_iso"
   ],
   "type": "string",
   "description": "Operation to run."
  },
  "to": {
   "type": "string",
   "maxLength": 64,
   "description": "IANA target time zone for tz_convert (default UTC)."
  },
  "from": {
   "type": "string",
   "maxLength": 64,
   "description": "IANA source time zone for tz_convert (default UTC)."
  },
  "value": {
   "type": "string",
   "maxLength": 20000,
   "description": "Input text, token, URL, timestamp or local datetime (depends on op)."
  },
  "secret": {
   "type": "string",
   "maxLength": 4096,
   "description": "Secret for hmac or for optional HS256 verification in jwt_decode."
  },
  "algorithm": {
   "enum": [
    "md5",
    "sha1",
    "sha256",
    "sha512",
    "sha3-256"
   ],
   "type": "string",
   "description": "Hash algorithm for hash and hmac (default sha256)."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "op": "hash",
  "hex": "b94d27b9934d3e08a52e52d7da7dabfac484efe37a5380ee9088f7ace2efcde9",
  "base64": "uU0nuZNNPgilLlLX2n2r+sSE7+N6U4DukIj3rOLvzek=",
  "readAt": "2026-10-16T06:29:30.955Z",
  "algorithm": "sha256",
  "inputLength": 11
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/textokit-developer-utilities-d8a12458/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from tienda.textokit.store](https://www.zero.xyz/host/tienda.textokit.store/llms.txt)