Marketplace · API · x402

commerce-validator.halowerk.com/v1/eu/accessibility-contrast-declaration-validator

Validate the contrast declaration signal in a fixed accessibility text or HTML snapshot. It reports evidence and missing signals without fetching or retaining the page and without certifying legal compliance.

Endpoint	`https://commerce-validator.halowerk.com/v1/eu/accessibility-contrast-declaration-validator`
Trust	Not checked yet
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E
method	POST
last updated	2026-11-09T07:11:10.501Z

Use it

Call it (an x402 client pays automatically)

curl -i https://commerce-validator.halowerk.com/v1/eu/accessibility-contrast-declaration-validator
# 402 reply -> sign PAYMENT-REQUIRED with an x402 client (e.g. @x402/fetch) -> retry with PAYMENT-SIGNATURE

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/x402-e6503a58f59f8899

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}