Google Antigravity With Clash: Access And Setup Guide

Preface

Google Antigravity users may encounter blocked pages, failed sign-ins, endless loading screens, or unstable AI requests when the service is accessed through a restricted, congested, or incorrectly routed network. These symptoms are not always caused by the Antigravity service itself. In many cases, the real problem is a combination of DNS resolution, IP reputation, browser session state, and a Clash profile that sends related traffic through inconsistent routes.

This guide explains how to build a cleaner Clash setup for Google Antigravity in 2026. The goal is not to force every connection through a distant proxy. Instead, you will learn how to choose a suitable Clash client, import a reliable profile, configure DNS and TUN mode correctly, and route Google and AI-related domains through a stable policy group. A selective setup is usually faster, easier to troubleshoot, and less likely to interrupt ordinary domestic websites or local applications.

The instructions apply mainly to Clash Verge Rev and other Mihomo-based clients on Windows, macOS, and Linux. Menu names may differ slightly in Clash Verge, Clash for Windows, ClashX, or Clash for Android, but the underlying ideas remain the same: the client provides the control panel, Mihomo provides the networking engine, and your subscription or YAML profile provides nodes and rules.

1Why Google Antigravity Access Fails

Before changing settings, identify the type of failure. A completely blank page, a sign-in loop, and an AI request timeout can look similar from the user's perspective, but they often require different fixes. Testing randomly by switching between Global and Rule mode can hide the actual cause and may also create new problems with cookies, account security checks, or cached DNS data.

Common failure patterns

• Blocked or unavailable page: The browser cannot reach the initial web application, or the service returns a regional availability message. This commonly points to route selection, DNS resolution, or the reputation of the selected exit IP.
• Google sign-in loop: The login page loads, but authentication returns to the same page repeatedly. A changing exit IP, blocked third-party cookies, incorrect system time, or a proxy rule that splits Google authentication domains across different nodes can cause this behavior.
• AI request timeout: The interface opens normally, but prompts remain pending. This may occur when the API or streaming endpoint uses a different hostname from the main website, when WebSocket traffic is not forwarded correctly, or when the node has high packet loss.
• Unexpected verification prompts: Repeated CAPTCHA or suspicious-traffic checks usually indicate poor IP reputation, frequent IP changes, automation-like browser extensions, or too many users sharing the same exit address.
• Slow page with no obvious error: The selected node may be geographically distant, overloaded, or connected through a congested route. A successful connection is not necessarily a usable connection for interactive AI tasks.

Google services are distributed across many domains and delivery networks. The visible Antigravity page may load from one hostname while authentication, static assets, telemetry, and AI requests use several other endpoints. Consequently, adding one domain rule is rarely a complete solution. A better approach is to use a maintained profile, keep related traffic in one policy group, and test the complete sign-in and request workflow.

Prepare before editing Clash

Start with a clean baseline. Update your Clash client and Mihomo core where appropriate, then confirm that the subscription is active and contains several nodes rather than only one endpoint. Check that your computer's date, time, and time zone are correct; authentication tokens and TLS certificates can fail when the system clock is significantly wrong. Temporarily disable aggressive ad-blocking or privacy extensions in a private test profile, because they can block login scripts or WebSocket connections.

It is also useful to record the current state. Note whether the Antigravity landing page, Google account login, and a simple AI request each work in the existing configuration. Test one change at a time. If everything is changed at once, it becomes difficult to tell whether DNS, the node, the routing mode, or the browser caused the improvement.

2Choose the Client and Build a Reliable Profile

For desktop users, a current Mihomo-based client is generally the most flexible option because it supports rule groups, TUN mode, modern protocols, and detailed connection logs. Clash Verge Rev is a practical choice for Windows, macOS, and Linux. Other clients can work as long as they support the protocol used by your provider, rule-based routing, remote profile updates, and DNS handling.

Select a node for interactive AI traffic

Node quality matters more than simply choosing the country with the shortest advertised ping. Google Antigravity needs a stable TCP connection, dependable TLS negotiation, and, depending on the client and service behavior, reliable long-lived connections for streamed responses. A node that responds quickly to a basic latency test may still perform badly during a ten-minute AI session.

• Prefer stable latency: A node with a consistent 120 ms response can be better than one that alternates between 60 ms and 800 ms.
• Watch packet loss: Loss and retransmission are especially noticeable when responses stream progressively.
• Avoid overloaded shared exits: Repeated CAPTCHA challenges or abrupt disconnects can indicate poor IP reputation or excessive usage.
• Keep one region during a session: Switching countries between login and AI requests can trigger security checks and invalidate cookies.
• Test several nodes: Compare page loading, sign-in completion, and an actual short prompt instead of relying on the client latency number alone.

Create a dedicated policy group

If your subscription already includes a group for Google, AI, or international services, use it rather than manually duplicating every node. If you maintain your own YAML profile, create a dedicated selector so that all related rules use the same group. The exact proxy names depend on your provider, but the structure can look like this:

Do not copy this example blindly if your profile uses different proxy names. A rule referring to a nonexistent group may be ignored or produce confusing behavior. Also avoid routing every domain through the same group simply because Antigravity needs a proxy. Broad Global mode is useful as a diagnostic test, but it is usually not the best permanent configuration.

3Configure DNS, TUN Mode, and Routing Rules

DNS is one of the most important parts of a stable Clash setup. If the browser resolves Google-related hostnames through a local resolver while the actual connection exits through another region, the result can be a wrong address, a failed TLS handshake, or a route that does not match the selected node. Mihomo can handle DNS queries inside the client and use fake-IP mode to keep application requests under Clash's control.

Use a controlled DNS configuration

Open the active profile or its YAML editor and review the DNS section. The following example is a starting point, not a universal replacement. Some providers already inject DNS settings, and some networks require a different fallback strategy.

In fake-ip mode, Clash returns an internal address to the application and associates it with the requested hostname. This allows the Mihomo core to apply domain rules even when an application initially works with an IP address. If a specific application is incompatible with fake-IP mode, place its domain in fake-ip-filter or temporarily test redir-host mode instead.

Enable TUN mode only when needed

Rule mode usually captures traffic from applications that respect the operating system proxy settings. It is simple and easy to disable, but some browser components, background services, and command-line tools may bypass those settings. TUN mode creates a virtual network interface and lets Mihomo capture more traffic at the system level. This can help when the Antigravity page loads but a background API request fails.

Before enabling TUN mode, install or authorize the required network driver, then turn on the client's system service permission if requested. Enable the option to auto-route or auto-detect the interface when available. If your local network or corporate VPN already uses a virtual adapter, test carefully because two tunnel interfaces can compete for DNS and default routes.

• Start with Rule mode and confirm whether the browser follows the selected group.
• Switch to TUN mode when browser requests or desktop application traffic bypasses Clash.
• Keep system proxy enabled only when the client or browser needs it; avoid stacking multiple proxy applications.
• Disable old VPN clients and other virtual adapters during troubleshooting to remove route conflicts.

Keep Google traffic consistent

Authentication and application traffic should not constantly jump between DIRECT and PROXY. Use a coherent policy for the Google domains required by your workflow. Commonly related domains include google.com, googleapis.com, gstatic.com, and other hostnames shown in the Clash connection log. Do not add every Google-owned domain automatically; some services may be region-specific or may work better through a direct route.

The connection log is the most reliable way to refine the rules. Open the log, load Antigravity, sign in, and submit a short harmless test request. Look for failed connections, repeated retries, or domains receiving the wrong policy. Add a narrow domain rule only after confirming that the hostname is part of the failed workflow. This keeps your profile maintainable and reduces accidental proxying.

4Test the Complete Workflow and Fix Common Problems

A successful setup should be tested in stages. First confirm that Clash is running and that the selected node has a working internet connection. Next open the Antigravity landing page. Then complete Google sign-in without changing nodes. Finally send a short, non-sensitive prompt and observe whether the response begins quickly and continues without repeated reconnects.

A practical diagnostic sequence

1. Check the client: Verify that the profile is active, the selected policy group has an available node, and the Mihomo core reports no startup errors.
2. Check DNS: Confirm that DNS is enabled in Clash and that the connection log shows the expected resolver behavior rather than only local ISP queries.
3. Check the route: Use the connection log to confirm that Antigravity, Google authentication, and API-related hostnames are handled by the same intended group.
4. Check the browser: Test a new private window, then disable only extensions that modify requests, cookies, headers, or scripts.
5. Check the node: Switch to one alternative node in the same region and repeat the test without changing other settings.
6. Check the mode: If Rule mode misses traffic, test TUN mode. If TUN mode creates conflicts, return to Rule mode and remove competing VPN adapters.

Common problems and targeted fixes

• The page is blank: Confirm that JavaScript is enabled, disable aggressive content blockers for the test, and inspect the connection log for blocked static assets from gstatic.com or related domains.
• Sign-in keeps returning to the login page: Keep the same node throughout authentication, check system time, allow required cookies, and avoid opening several Google accounts in conflicting browser profiles.
• The request stays pending: Test another node with lower packet loss, verify that WebSocket or long-lived connections are supported, and check whether the API hostname is being sent DIRECT accidentally.
• CAPTCHA appears repeatedly: Stop rapidly switching nodes, use a less crowded endpoint, and remove automation extensions. If the IP reputation is poor, configuration changes alone may not solve the issue.
• Local websites become slow: Review the final rules and move ordinary local traffic back to DIRECT. A dedicated Antigravity group should not become a global proxy unless you are deliberately testing that mode.
• Clash reports a certificate or TLS error: Check the system clock, update the client core, and avoid installing unknown certificate files. Never disable certificate verification as a permanent workaround.

Once the workflow succeeds, save the working profile and record the selected node, mode, DNS behavior, and relevant rules. Update the subscription periodically, but do not change every setting at the same time. When a future update breaks access, returning to this known-good baseline will make the cause much easier to isolate.

Google Antigravity access is most reliable when Clash is treated as a routing system rather than a single on/off switch. A stable node, consistent DNS handling, narrow rules, and a clean browser session usually provide better results than forcing all traffic through Global mode. Start with the smallest configuration that works, observe the logs, and expand the rules only when a real request requires it.

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