Website tech stack lookup
tech_stack_lookupDetect what a website is built with: CMS, frameworks, analytics, CDN, hosting, email and DNS providers (MX, SPF, DMARC) and a security-header grade, from one fetch of its homepage. Free for 1 domain per call (10 free calls a minute per IP); 2-3 domains in one call cost $0.005 USDC. Paid calls made without a payment return isError with the x402 v2 PaymentRequired object (amount in USDC atomic units, network, payTo, HTTP endpoint); retry with the signed PaymentPayload in params._meta["x402/payment"]. Invalid input and calls where every item fails are never charged. Fetches follow robots.txt, use the User-Agent AdamHaleTools/1.0 and refuse private or internal addresses.
Input Schema
| Name | Required | Description | Default |
|---|---|---|---|
| domains | Yes | 1-3 domains or homepage URLs, e.g. ["wordpress.org"]. One domain is free; two or three are one paid call. | |
| x402_payment | No | Optional, paid tier only: a signed x402 v2 PaymentPayload, base64 (the value an HTTP client sends as the PAYMENT-SIGNATURE header). Prefer params._meta["x402/payment"]. Never a private key or seed phrase. |