# Toll402 Honduran RTN Validator

> Toll402 Honduran RTN Validator is a paid API for AI agents from toll402.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Validates a Honduran RTN (Registro Tributario Nacional) tax identification number, with or without separators

## Facts

- Endpoint: POST https://toll402.dev/v1/t/rtn_hn_validate
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/toll402-honduran-rtn-validator-80e612b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bPzI2GMqbJ5p4f9GfpM2k

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 toll402-honduran-rtn-validator-80e612b0 -d '<json body>'
```

Example prompt: Can you check if this Honduran RTN number is valid: 0801-1990-123456?

## When to prefer this

Use this endpoint when you need to validate Honduran RTN (Registro Tributario Nacional) tax identification numbers, particularly for compliance, invoicing, or KYC workflows involving Honduran individuals or businesses. It accepts RTNs with or without separators, making it flexible for various input formats.

## Known failure modes

- Invalid RTN format returns ok: false
- Missing 'rtn' field in body causes 400-level error
- Non-string RTN value causes schema validation failure
- Empty string RTN returns validation failure
- Payment failure via x402 if USDC wallet is insufficient

## How this service works

The OpenRouter for AI-agent tools: one gateway, one wallet, every capability. Built-in tools, forged tools, a global verified business directory and 2,000+ aggregated x402 services, all paid per call in USDC via x402 (HTTP 402). No signup, no API key.

## Output

Returns a JSON object with an 'ok' boolean indicating whether the provided RTN is valid. A true value means the RTN passes validation; false indicates it is invalid or malformed.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "required": [
      "rtn"
     ],
     "properties": {
      "rtn": {
       "type": "string",
       "description": "Honduran RTN, with or without separators"
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/toll402-honduran-rtn-validator-80e612b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from toll402.dev](https://www.zero.xyz/host/toll402.dev/llms.txt)