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medien.halowerk.com v1 pdf-fill
https://medien.halowerk.com/v1/pdf-fill
answers 402
Called without "fields" it inspects: every AcroForm field of the PDF comes back with its name, type, current value, whether it is required or read-only, the permitted options for dropdowns, radio groups and list boxes, and the character limit of text fields. Called with "fields" it fills exactly those and returns the resulting PDF as base64, together with what each field held before and after.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.005
- Network
- base
- Pay to
- 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 648 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:23:46.885Z (28d ago)
- Category
- other
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmedien.halowerk.com%2Fv1%2Fpdf-fill"