# hCaptcha Siteverify API

**Canonical:** https://apis.io/apis/hcaptcha/siteverify/  
**Provider:** hCaptcha — https://apis.io/providers/hcaptcha/  
**Base URL:** https://api.hcaptcha.com  
**Documentation:** https://docs.hcaptcha.com/

hCaptcha Siteverify API is one of 6 APIs that [hCaptcha](https://apis.io/providers/hcaptcha/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Siteverify, Token Verification, and Server-Side. The published artifact set on APIs.io includes API documentation and an API reference.

The /siteverify endpoint validates an hCaptcha response token submitted by a browser. The server POSTs the token, secret key, and optional remote IP, and receives a JSON response indicating success, hostname, timestamp, score (Enterprise), and any error codes. This is the canonical server-side check that gates form submissions and API calls behind an hCaptcha challenge.

## Machine-readable artifacts (3)

- **Documentation** — https://docs.hcaptcha.com/
- **APIReference** — https://docs.hcaptcha.com/#verify-the-user-response-server-side
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/hcaptcha/refs/heads/main/apis.yml

## Other hCaptcha APIs (5)

- [hCaptcha JavaScript Widget](https://apis.io/apis/hcaptcha/js-widget/)
- [hCaptcha Invisible](https://apis.io/apis/hcaptcha/invisible/)
- [hCaptcha Mobile SDKs](https://apis.io/apis/hcaptcha/mobile-sdks/)
- [hCaptcha Enterprise](https://apis.io/apis/hcaptcha/enterprise/)
- [hCaptcha Siteverify API](https://apis.io/apis/hcaptcha/hcaptcha-siteverify-api/)

## Tags

Siteverify, Token Verification, Server-Side

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/hcaptcha/siteverify/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/hcaptcha/.