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mail.halowerk.com email batch
https://mail.halowerk.com/email/batch
answers 402
Check up to 100 email addresses in one paid call, billed per address.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 549 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:22:12.685Z (21d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmail.halowerk.com%2Femail%2Fbatch"