the402 endpoint detail

← All endpoints

modell.halowerk.com v1 openapi-to-mcp

https://modell.halowerk.com/v1/openapi-to-mcp

answers 402

Converts each OpenAPI operation into an MCP tool. Path, query and header parameters and the JSON request body are merged into one input schema, because MCP tools take exactly one; a name collision between a body field and a parameter is reported rather than silently overwritten. Internal $refs are expanded inline so each tool schema stands alone — an MCP client cannot resolve them.

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
552 ms
Payment options
1 usable of 1
Last checked
2026-09-06T01:23:49.310Z (21d ago)
Category
search

Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fmodell.halowerk.com%2Fv1%2Fopenapi-to-mcp"