# Agent402 UK Email Normalizer

> Agent402 UK Email Normalizer is a paid API for AI agents from agent402.co.uk, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).

Normalizes an email address to its canonical lowercase local@domain form, validating syntax structure without performing MX/DNS checks.

## Facts

- Endpoint: POST https://agent402.co.uk/v1/normalize/email
- Price: $0.001/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/agent402-uk-email-normalizer-4db3025c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MtFmRUWuQGgU5wDGieGdP

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 agent402-uk-email-normalizer-4db3025c -d '<json body>'
```

Example prompt: Can you normalize this email address 'OPS@Example.COM' to its canonical lowercase form and tell me if it's structurally valid?

## When to prefer this

Choose this endpoint when you need fast, cheap, deterministic email syntax normalization and canonicalization without any network-dependent MX or DNS resolution. Ideal for pre-storage sanitization, deduplication pipelines, or input validation where DNS checks are unnecessary or too slow. At $0.001 per call it is suitable for high-volume cleaning tasks.

## Known failure modes

- Missing or empty email field returns an error response
- Malformed JSON body causes a 400-style error
- Completely unparseable strings (no @ symbol, no domain) may return valid: false
- Payment failure or missing x402 header results in 402 response blocking the call

## How this service works

Don't burn tokens on deterministic work. Go/no-go jobs first: payout preflight, text firewall (PII/secrets), budget check — then rails, calendars, finmath. x402 USDC on Base. UK + global. agent402.co.uk — not agent402.tools. $0.001–$0.002 USDC on Base. No API keys.

## Output

Returns a JSON object with a boolean 'valid' field indicating whether the email has valid syntax, and a 'normalized' field containing the email in canonical lowercase form (e.g. {"valid": true, "normalized": "ops@example.com"}). No MX or DNS resolution is performed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "description": "Email"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "valid": true,
  "normalized": "ops@example.com"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/agent402-uk-email-normalizer-4db3025c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agent402.co.uk](https://www.zero.xyz/host/agent402.co.uk/llms.txt)