Marketplace · API · x402

scrapecheck.fly.dev/verify-presence

PRESENCE tier (deterministic, no LLM): confirms the claimed value appears on the live page — it does NOT confirm the value is the right answer to the question. Positive verdict is "present", never "pass"; check_type web_field_presence_v1. For full verification use /verify. First 100 checks per client are free: resend with header X-Use-Free-Allowance: yes and no payment to use them.

Endpoint	`https://scrapecheck.fly.dev/verify-presence`
Trust	100% uptime over 1 checks · ~54 ms
Pricing	Pay per call with x402, no account. Call it to get an exact quote before paying.
network	eip155:8453
scheme	exact
pay to	0x455F20eC147477CAFcd6D77C1604529f3c4Ff665
method	POST
last updated	2026-11-11T15:06:15.705Z

Use it

Call it (an x402 client pays automatically)

curl -i https://scrapecheck.fly.dev/verify-presence
# 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/x402-4193898187ac8455

Search the whole marketplace from your agent (MCP)

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