# Delx Commerce — Email Shape Validator

> Delx Commerce — Email Shape Validator is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Checks whether a given string has a valid email address format (shape/syntax), returning true or false.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/is-email-shape?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-email-shape-validator-8fa3a91f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_C4wtFnnlJxMXVXggsZcj4

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 delx-commerce-email-shape-validator-8fa3a91f -d '<json body>'
```

Example prompt: Can you check if 'user@example.com' is a properly formatted email address — just the shape, not whether it actually exists?

## When to prefer this

Choose this endpoint when you need a lightweight, pay-per-call email syntax/shape check with no signup and verifiable delivery via x402 on Base or Solana USDC. Ideal for AI agents that need a trust-minimized, micropayment-gated validation primitive without standing up a subscription or managing API keys. Not a deliverability check — use this only for format/shape validation.

## Known failure modes

- Missing 'email' field in request body returns an error
- Non-string input may cause a validation error
- Network or payment processing failure returns a 402 or 5xx error
- Ambiguous edge-case email strings (e.g. internationalized domains) may yield unexpected results

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns a JSON object containing the original email string, a boolean 'valid' field indicating whether it conforms to email address shape/syntax, and a schema identifier ('delx/util-is-email-shape/v1') for verifiable provenance.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "description": "Input field: email."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "email": "ops@delx.ai",
  "valid": true,
  "schema": "delx/util-is-email-shape/v1"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-email-shape-validator-8fa3a91f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)