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HALOWERK buerowerk — Email Allowed-Domain Partition Filter
x402
HALOWERK buerowerk — Email Allowed-Domain Partition Filter is a paid API for AI agents from buero.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-22).
Partitions a list of email addresses by checking which ones belong to a set of allowed domains, separating allowed from disallowed addresses.
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 partitioning the input email addresses into two groups: those whose domains appear in the allowed_domains list, and those whose domains do not. Returns structured data categorizing each email as allowed or disallowed.
Example use cases
CRM contact domain compliance check
“I have a list of 200 contacts from our CRM export — can you split them into those from our approved partner domains (vendor.com, partner.net) and those that aren't, so I know who's authorized?”
Event attendee domain gating
“We only want to invite people from our corporate domains corp.example.com and subsidiary.example.com — can you go through this attendee email list and tell me which ones qualify and which ones don't?”
Newsletter list domain cleanup
“Before we send our newsletter, can you filter this mailing list and separate emails from our trusted domains (trustedco.com, alliance.org) from all the external ones so we can handle them differently?”
Technical details
Endpoint
POSThttps://buero.halowerk.com/v1/baumarkt/mail/allowed-domain-partition?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need to batch-validate or partition a list of email addresses against a domain allowlist in a single call, especially within an automated workflow requiring micropayment-gated, privacy-respecting domain filtering without sending any emails or performing full SMTP validation.
Side effects
- Empty or missing emails array returns an error
- Empty or missing allowed_domains array returns an error
- Emails array exceeding 500 entries is rejected
- Allowed_domains array exceeding 100 entries is rejected
- Malformed email strings (exceeding 320 chars) are rejected
- Payment failure via x402 (402 response) if USDC payment is insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| emails | array | |
| allowed_domains | array |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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