Cloudflare Resurfaced Tunnel Tool for AI Development

The Quick Tunnels feature enables developers to share local projects without account requirements or port forwarding.

Updated on Sept. 21, 2026 in Remote Work

Isometric editorial illustration depicting interconnected network nodes and data conduits in muted colors. — Cloudflare has reintroduced its Quick Tunnels feature, enabling developers to create encrypted public addresses for local servers to facilitate AI agent access. AI Illustration. Upload story photo >

Live Poll

Is it worth using anonymous remote-access tools for development projects despite potential security risks?

Cloudflare has brought its Quick Tunnels feature back into focus, allowing users to create encrypted public addresses for local servers. The tool simplifies remote project access by enabling AI agents and developers to interact with local codebases via the trycloudflare.com domain.

Why it matters

The tool eliminates the need for manual port forwarding or DNS configuration, speeding up development cycles for teams leveraging AI agents. However, the accessibility has historically attracted bad actors, mirroring abuse patterns previously seen on similar platforms.

Security firms have tracked criminal exploitation of anonymous tunnel tools for two years, contrasting with the five years since Cloudflare first launched Quick Tunnels in September 2021.

The players

Cloudflare

A global provider of content delivery networks and cloud security services that enables developers to manage web infrastructure.

ngrok

A developer-focused platform providing secure tunneling services that previously discontinued anonymous access to mitigate abuse.

The details

Users activate the tool by running the cloudflared command, which generates a public URL that maps to a local machine's development environment. The connection is ephemeral, meaning the public address immediately terminates once the user closes the terminal process. While this workflow provides high-speed access for AI coding agents, the absence of account requirements has previously led to platform abuse, prompting competitors like ngrok to disable similar anonymous features.

September 2021: Cloudflare originally shipped the Quick Tunnels feature.
September 21, 2026: The tool regained significant popularity among developers.

Market Landscape

This strategy marks a departure from the industry standard established when ngrok discontinued anonymous tunnels to reduce criminal platform abuse. Cloudflare is positioning the tool to support the burgeoning AI agent era, effectively prioritizing developer velocity over the friction of mandatory authentication.

Managers should ensure that developers are aware of the security trade-offs involved in using ephemeral public tunnels for local projects. Security teams should audit whether developers are using these tools to bypass internal network perimeters or secure CI/CD pipelines.

The takeaway

The return of Quick Tunnels provides an immediate utility for AI-driven development but shifts the burden of perimeter security onto individual developers. Teams should monitor how these public endpoints integrate with their existing security stacks to prevent unauthorized access to local environments.