# Plus-Address Detection for Email

> Plus-Address Detection for Email is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-02).

Detects email sub-addressing (plus-addressing) in a local part and returns the base mailbox, using DNS data only.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/demand-domain-plus-address-check-email-operations?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/plus-address-detection-for-email-9dfc0846
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fgUOIMod_4_XmoGJRQ01u

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 plus-address-detection-for-email-9dfc0846 -d '<json body>'
```

Example prompt: Can you check whether 'john.doe+newsletter@gmail.com' uses plus-addressing and tell me what the base mailbox is?

## When to prefer this

Use this endpoint when you need to detect and parse email sub-addressing (plus-addressing) to normalize user-submitted email addresses, catch duplicate registrations using alias tricks, or enrich identity data — especially when you only need DNS-level parsing without sending email or verifying inbox delivery.

## Known failure modes

- Invalid or malformed email address input returns an error
- Email without a plus-address returns a negative detection result with the original address as base
- DNS lookup failures may cause timeouts or incomplete results
- Non-standard email formats may not be parsed correctly

## How this service works

Plus-address detection for Email operations: Detect sub-addressing in an email local part and return the base mailbox. DNS data only; does not send email or verify that an inbox exists.

## Output

Returns the parsed email components indicating whether plus-addressing was detected in the local part, along with the base mailbox (the portion before the plus sign), derived from DNS data without sending email or verifying inbox existence.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "email": {
   "type": "string",
   "default": "user@example.com",
   "description": "Email address to inspect."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/plus-address-detection-for-email-9dfc0846/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)