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HALOWERK buerowerk — Email Potential Plus Aliases
x402
HALOWERK buerowerk — Email Potential Plus Aliases is a paid API for AI agents from buero.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-18).
Given a list of email addresses, returns potential plus-alias variants (e.g. user+tag@domain.com) for each address
Price / call$0.004
Success—
StatusUnknown
How this service works
HALOWERK buerowerk — bezahlte Endpunkte nach x402. Preise in USDC auf Base Mainnet.
Output
A JSON response containing, for each input email address, the set of potential plus-alias variants (subaddress forms such as user+tag@domain.com) that could be derived from that address.
Example use cases
Email list expansion for outreach
“I have a list of 50 customer email addresses — can you generate all the likely plus-alias variants for each one so I can check them against our suppression list?”
Deduplication via alias detection
“Here are the emails from our signup form: john@example.com, jane@example.com, alex@company.org — can you find all the plus-alias forms they might be using to create duplicate accounts?”
Security audit of alias abuse
“We suspect some users are gaming our referral program with plus-address tricks. Can you take these 20 email addresses and return every potential plus alias variant so we can flag duplicates?”
Technical details
Endpoint
POSThttps://buero.halowerk.com/v1/baumarkt/mail/potential-plus-aliases?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need to systematically enumerate or discover the plus-alias (subaddressing) variants of a set of known email addresses — for example, to detect duplicate registrations, enrich a contact list, audit alias abuse, or prepare suppression lists. Prefer this over manual string manipulation when working with batches of up to 500 emails at once.
Side effects
- Empty or missing emails array returns a validation error
- Email strings exceeding 320 characters are rejected
- Array exceeding 500 items may be rejected or truncated
- Malformed email strings may be skipped or cause errors
- Payment failure via x402 results in 402 response before processing
- Invalid JSON body returns 400 error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emails | array |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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