# Toll402 RNC Validator

> Toll402 RNC Validator is a paid API for AI agents from toll402.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Validates a Dominican Republic RNC (Registro Nacional del Contribuyente) tax ID number

## Facts

- Endpoint: POST https://toll402.dev/v1/t/rnc_do_validate
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/toll402-rnc-validator-823a286d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_EJTbf0iIFFVN_Lmu8QmaQ

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-rnc-validator-823a286d -d '<json body>'
```

Example prompt: Can you validate this Dominican Republic RNC number for me: 1-31-12345-6? I need to confirm it's a real registered taxpayer before we send them a payment.

## When to prefer this

Use this endpoint when you need to verify Dominican Republic business tax IDs (RNCs) for compliance, vendor onboarding, invoice validation, or KYB workflows. Prefer this over generic business lookup tools when the specific identifier is an RNC and the entity is registered in the Dominican Republic.

## Known failure modes

- Invalid or malformed RNC (wrong digit count, non-numeric characters) returns a validation error
- RNC number not found in DGII registry returns a negative result
- Network or upstream registry unavailability causes a service error
- Payment failure via x402/USDC prevents the call from completing

## 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 RNC validation succeeded, potentially including business registration details such as the registered name, status, and taxpayer category from the Dominican Republic DGII registry.

## 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": [
      "rnc"
     ],
     "properties": {
      "rnc": {
       "type": "string",
       "description": "RNC number, digits only or with dashes/spaces, 9 digits"
      }
     },
     "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-rnc-validator-823a286d/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)