# Strale Invoice Verify ES

> Strale Invoice Verify ES is a paid API for AI agents from api.strale.io, paid per call via x402, $2.7/call, status unknown (last checked 2026-09-14).

Verifies Spanish invoices by validating sender identity, VAT number, IBAN/BIC banking details, domain, and email against Spanish business registries and fraud signals.

## Facts

- Endpoint: POST https://api.strale.io/x402/v2/solutions/invoice-verify-es
- Price: $2.7/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-invoice-verify-es-1c7d85d2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_zzCQ7-1JKaiyjVRq2eGkq

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 strale-invoice-verify-es-1c7d85d2 -d '<json body>'
```

Example prompt: Can you verify this Spanish invoice for me? The sender is 'Construcciones López S.L.' with CIF B12345678, their email is facturas@lopezsl.es, domain lopezsl.es, IBAN ES91 2100 0418 4502 0005 1332, BIC CAIXESBBXXX — I want to make sure it's legitimate before I approve payment.

## When to prefer this

Choose this endpoint when you need to verify Spanish-market invoices specifically, with support for Spanish CIF/VAT numbers, Spanish IBAN formats, and Spanish business registry cross-referencing. Prefer this over generic EU invoice validators when the counterparty is a Spanish company and you need combined identity, banking, and domain fraud signals in a single auditable call with cryptographic chain hashing for compliance purposes.

## Known failure modes

- Invalid or unrecognized Spanish CIF/VAT number format returns validation error
- IBAN fails checksum or is not a valid Spanish ES-prefix IBAN
- BIC/SWIFT code not found in known registry
- Company name does not match registry entry for provided CIF
- Sender domain or URL is unreachable or flagged as suspicious
- Missing required fields causes 400 bad request
- Payment of 2.7 USDC not fulfilled returns 402 Payment Required
- Rate limiting or service unavailability returns 503

## How this service works

The trust layer for AI agents — 250+ independently tested data capabilities across 27 countries. Execute capabilities via REST, MCP, A2A, or x402 micropayments. Every call returns an audit record with cryptographic chain hashing.

## Output

Returns a structured verification result indicating whether the invoice sender identity, VAT/CIF number, IBAN, BIC, email domain, and redirect URL pass validation against Spanish business data. Includes a fraud risk assessment, field-level pass/fail signals, and an audit record with a cryptographic chain hash for compliance traceability.

## Request schema (JSON Schema)

```json
{
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json",
      "form-data",
      "text"
     ]
    },
    "body": {
     "type": "object",
     "required": [
      "company_name"
     ],
     "properties": {
      "bic": {
       "type": "string",
       "description": "BIC/SWIFT code from the invoice"
      },
      "iban": {
       "type": "string",
       "description": "IBAN from the invoice payment details"
      },
      "sender_url": {
       "type": "string",
       "description": "URL from the invoice for redirect tracing"
      },
      "vat_number": {
       "type": "string",
       "description": "VAT number from the invoice"
      },
      "company_name": {
       "type": "string",
       "description": "Spanish company name or CIF"
      },
      "invoice_data": {
       "type": "object",
       "description": "Structured invoice data for validation"
      },
      "sender_email": {
       "type": "string",
       "description": "Email address of the invoice sender"
      },
      "sender_domain": {
       "type": "string",
       "description": "Domain of the invoice sender"
      }
     }
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  }
 },
 "required": [
  "input"
 ]
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-invoice-verify-es-1c7d85d2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)