# Strale ID Number Validate

> Strale ID Number Validate is a paid API for AI agents from api.strale.io, paid per call via x402, $0.0216/call, status unknown (last checked 2026-09-15).

Validates national identification numbers (e.g. social security, personal ID) for a given country, checking format rules and checksums.

## Facts

- Endpoint: GET https://api.strale.io/x402/v2/id-number-validate
- Price: $0.0216/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-id-number-validate-344baced
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_u8Aw8QDFQeXjw0ApBEgAF

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-id-number-validate-344baced
```

Example prompt: Can you check whether this Swedish personal number 198501012391 is valid? The country code is SE.

## When to prefer this

Choose this endpoint when you need to validate national identification numbers for specific supported countries (SE, FI, NO, DK, GB, US, DE) and require a cryptographic audit trail per call. Prefer over generic regex checks when you need authoritative format and checksum validation with a tamper-evident record, especially in KYC, compliance, or regulated onboarding flows. If you need TIN format validation instead, use the sibling TIN-validate endpoint.

## Known failure modes

- Unsupported country code returns an error — only SE, FI, NO, DK, GB, US, DE are accepted
- Malformed or missing id_number parameter causes a 400 bad request
- Invalid ISO country code format triggers a validation error
- Network or service downtime returns a 5xx error
- ID number that fails format check returns a negative validation result, not an API error

## 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 validation result indicating whether the national identification number is correctly formatted and passes checksum rules for the specified country, along with a cryptographic audit record for traceability.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "id_number",
      "country_code"
     ],
     "properties": {
      "id_number": {
       "type": "string",
       "description": "National identification number"
      },
      "country_code": {
       "type": "string",
       "description": "ISO 2-letter country code (SE, FI, NO, DK, GB, US, DE)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-id-number-validate-344baced/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)