shield.vainplex.dev/api/cdp/check-password-range

ShieldAPI - x402 security preflight before agents accept or store credential material

Endpoint	`https://shield.vainplex.dev/api/cdp/check-password-range`
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	0xFcAfd9dAc06a03F588D6f55B5336162dFd7202a6
method	GET
last updated	2026-10-29T10:19:00.734Z

Use it

Call it (an x402 client pays automatically)

curl -i https://shield.vainplex.dev/api/cdp/check-password-range
# 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-c4f5e426e71c820c

Search the whole marketplace from your agent (MCP)

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