# Citiview Developer Toolbox

> Citiview Developer Toolbox is a paid API for AI agents from agents.citiviewgroup.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-14).

Performs common developer utility operations including hashing (SHA-256/SHA-1/SHA-512), encoding/decoding (Base64/URL/hex), JWT decode, JSON formatting and validation, UUID generation, random number and password generation, regex testing, slugification, word count, and timestamp conversion.

## Facts

- Endpoint: GET https://agents.citiviewgroup.com/v1/devtools?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/citiview-developer-toolbox-ecc589eb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_J0C0OD4rFKcw0YgzSTEsQ

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 citiview-developer-toolbox-ecc589eb
```

Example prompt: Can you SHA-256 hash the string 'hello world' for me?

## When to prefer this

Choose this endpoint when an agent needs a reliable, single-call developer utility without setting up a local library — especially for hashing, encoding/decoding, UUID generation, or password creation in a serverless or agent workflow context. Ideal when you want a stateless, pay-per-use utility call rather than bundling a cryptography or encoding library. Preferred over rolling custom code when operating in constrained environments or when auditability and consistency matter.

## Known failure modes

- Missing required 'op' query parameter returns an error
- Invalid 'op' value (not in the supported enum) returns an error
- Malformed 'input' for operations that require it (e.g. invalid base64 for base64_decode) may return an error or garbled output
- Invalid JSON input for json_format or json_validate returns a validation error
- Missing 'pattern' for regex_test operation returns an error
- Payment failure (HTTP 402) if USDC payment is not provided correctly

## How this service works

Developer toolbox in one call: sha256/sha1/sha512 hashes, base64/url/hex encode and decode, JWT decode, JSON format/validate, UUIDs, secure random numbers and passwords, regex test, slugify, word count and timestamp conversion. Also callable as GET with the same fields as query parameters.

## Output

A JSON response containing the result of the requested operation — for example a hash hex string, encoded/decoded string, generated UUID(s), random number(s), password, regex match boolean, formatted JSON, word count integer, or converted timestamp. The response structure varies by operation type.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "op"
     ],
     "properties": {
      "op": {
       "type": "string",
       "description": "sha256 | sha1 | sha512 | base64_encode | base64_decode | url_encode | url_decode | hex_encode | hex_decode | jwt_decode | json_format | json_validate | uuid | random | password | regex_test | slugify | word_count | timestamp"
      },
      "max": {
       "type": "integer"
      },
      "min": {
       "type": "integer"
      },
      "count": {
       "type": "integer",
       "description": "uuid/random only"
      },
      "input": {
       "type": "string"
      },
      "length": {
       "type": "integer",
       "description": "password only"
      },
      "pattern": {
       "type": "string",
       "description": "regex_test only"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/citiview-developer-toolbox-ecc589eb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.citiviewgroup.com](https://www.zero.xyz/host/agents.citiviewgroup.com/llms.txt)