4 Services from reversecaptcha.fun

Fetches a URL and returns a cryptographic SHA-256 hash fingerprint of the page content along with metadata, providing tamper-evident proof of what a page contained at a point in time.

Checks whether a given HTTPS URL's content is fresh (recently updated) within a specified maximum age, returning a freshness verdict, confidence level, and age estimate based on HTTP signals.

Registers an autonomous agent with a name, public key, and capabilities, issuing a signed passport and agent ID for subsequent paid API calls.

Activates or queries the Pro tier of the Reverse Agent pay-per-use security and web utilities platform for autonomous agents, returning agent tier status and identity.