# Strale Contact Verify

> Strale Contact Verify is a paid API for AI agents from api.strale.io, paid per call via x402, $0.27/call, status unknown (last checked 2026-09-15).

Verifies email addresses, postal addresses, and phone numbers for validity and deliverability

## Facts

- Endpoint: POST https://api.strale.io/x402/v2/solutions/contact-verify
- Price: $0.27/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/strale-contact-verify-71b1fd1d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_chSMgy955t7_G-WQE9FMM

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-contact-verify-71b1fd1d -d '<json body>'
```

Example prompt: Can you verify whether john.doe@example.com is a real, deliverable email address, and also check if +1-415-555-0192 is a valid phone number?

## When to prefer this

Choose this endpoint when you need a verifiable, auditable contact validation with a cryptographic trust record — especially in regulated industries, fraud prevention workflows, or agent pipelines where accountability matters. Prefer this over generic email-ping validators when you need multi-field contact verification (email + phone + address) in a single call with a tamper-evident audit trail across 27 countries.

## Known failure modes

- Invalid or malformed email format returns a validation error
- Unresolvable or non-existent domain for email may return undeliverable status
- Phone number outside supported country format may fail format checking
- Postal address in unsupported country may not be verifiable
- Missing required email field returns a 400-level error
- Network or provider timeout returns a 5xx 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 verification result for each submitted contact field (email, phone, postal address), indicating validity status, deliverability, and any detected issues. Each response includes a cryptographic audit record with chain hashing for traceability and trust.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "description": "Email address to verify"
  },
  "address": {
   "type": "string",
   "description": "Postal address to verify (optional)"
  },
  "phone_number": {
   "type": "string",
   "description": "Phone number to verify (optional)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/strale-contact-verify-71b1fd1d/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)