# Turnstile Pre-Clearance

**Canonical:** https://apis.io/apis/cloudflare-turnstile/pre-clearance/  
**Provider:** Cloudflare Turnstile — https://apis.io/providers/cloudflare-turnstile/  
**Base URL:** https://challenges.cloudflare.com/turnstile/v0/api.js  
**Documentation:** https://developers.cloudflare.com/turnstile/concepts/pre-clearance-support/

Turnstile Pre-Clearance is one of 5 APIs that [Cloudflare Turnstile](https://apis.io/providers/cloudflare-turnstile/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Pre-Clearance, Cookies, and Spa. The published artifact set on APIs.io includes API documentation.

Pre-clearance lets a successful Turnstile challenge set a cookie that Cloudflare-proxied properties can honor to skip subsequent bot challenges for the same visitor, which is useful for single-page applications and API-heavy flows.

## Machine-readable artifacts (1)

- **Documentation** — https://developers.cloudflare.com/turnstile/concepts/pre-clearance-support/

## Other Cloudflare Turnstile APIs (4)

- [Turnstile Siteverify API](https://apis.io/apis/cloudflare-turnstile/siteverify/)
- [Turnstile Client Widget](https://apis.io/apis/cloudflare-turnstile/client-widget/)
- [Cloudflare Turnstile Management API](https://apis.io/apis/cloudflare-turnstile/management-api/)
- [Cloudflare Turnstile Verification API](https://apis.io/apis/cloudflare-turnstile/cloudflare-turnstile-verification-api/)

## Tags

Pre-Clearance, Cookies, Spa

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