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modell.halowerk.com v1 tool-compat
https://modell.halowerk.com/v1/tool-compat
answers 402
Compares a producer output schema against a consumer input schema and reports whether the two can be chained. Every required field of the consumer is looked for in the producer: exact name matches first, then well-known synonyms (url/uri/link, id/key/ref, created_at/timestamp and so on), which are reported as renames needing a mapping rather than as clean matches.
We sent a real
POST request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.002
- Network
- base
- Pay to
- 0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- POST
- Response latency
- 548 ms
- Payment options
- 1 usable of 1
- Last checked
- 2026-09-06T01:23:49.293Z (21d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmodell.halowerk.com%2Fv1%2Ftool-compat"