Fix OpenClaw OAuth Error: Antigravity Auth Guide

OpenClaw OAuth errors with Antigravity usually happen because of expired tokens, disabled auth plugins, version mismatch, account restrictions, or provider-side policy changes. Most of the time it is not your setup that's broken.

• OAuth errors are not always local setup bugs
• Some failures come from provider restrictions outside your control
• Avoid risky token reuse or unsupported auth workarounds

If you want OpenClaw running without fighting OAuth tokens, plugin changes, gateway errors, or account-risky auth flows, use Ampere.sh with a safer managed setup.

The setup looks like this:

• OpenClaw tries to authenticate with Antigravity
• The OAuth flow fails or the token is rejected
• The provider refuses access, session expires, or the plugin is missing/disabled
• The model request fails even if OpenClaw itself is running

Possible user-facing errors:

• OAuth login failed
• Version no longer supported
• Authentication failed
• Token expired
• Provider unavailable
• 401 unauthorized
• 403 forbidden
• Antigravity auth not working

Do not skip this part. It matters:

• Antigravity OAuth may not be a stable or approved way to access models through OpenClaw
• Some users reported account restrictions after using OpenClaw with Antigravity OAuth
• If the provider disallows this flow, do not try to bypass it
• Use official API keys or supported provider access instead

If your account was restricted or the provider rejects Antigravity OAuth, do not keep retrying with copied tokens, old sessions, or patched clients. That can make the situation worse.

Before deep debugging, work through this checklist:

• Is OpenClaw updated?
• Is the gateway running?
• Is the auth plugin available?
• Is the plugin enabled?
• Did the OAuth token expire?
• Did provider access change?
• Are logs showing 401 or 403?
• Is the issue only with Antigravity, or all providers?

Old OpenClaw versions may use outdated OAuth behavior, user-agent handling, or plugin paths. Update first before trying anything else:

If you installed through a package manager, use your install method instead.

Then restart:

Or with systemd:

OAuth may fail if the gateway is not running or cannot complete callback handling:

If stopped, restart it:

Then watch the logs:

What to look for:

• Auth callback errors
• Provider 401 errors
• Provider 403 errors
• Plugin load errors
• Token refresh errors

Some OpenClaw versions changed how Antigravity auth is packaged, enabled, or loaded.

List your plugins:

If the plugin exists but is disabled, enable it:

Restart gateway:

Only enable this if your OpenClaw version supports it and your provider terms allow it. Do not use plugins to bypass provider restrictions.

Tired of debugging OAuth tokens?

Ampere.sh handles provider configuration on managed OpenClaw hosting. No token debugging, no plugin conflicts, no gateway issues.

Old cached OAuth credentials can cause repeated failures. Safe steps:

• Sign out from the provider inside OpenClaw
• Remove stale OAuth session from OpenClaw settings
• Reconnect using a fresh login
• Restart gateway after reconnecting

Do not paste OAuth tokens from random files, Discord messages, GitHub comments, or browser storage. That is how people convert "auth error" into "security incident."

Optional safe command pattern:

If your OpenClaw version does not support this command, use dashboard sign-out or check openclaw auth --help.

Switch to a safer setup if:

• Google account access is restricted
• Antigravity access is revoked
• Repeated 403 errors appear
• Provider says the client is unsupported
• OAuth works briefly, then fails again
• Other users report bans or restrictions on the same auth flow

Recommended safer alternatives:

• Use official Gemini API key
• Use OpenAI, Claude, or OpenRouter API keys
• Use local models through Ollama (see self-host LLM guide)
• Use managed OpenClaw hosting with safer provider configuration

API keys are usually cleaner than OAuth-based access through a coding product account. Steps:

• Create or open your Gemini API project
• Generate an API key
• Add it to OpenClaw provider settings
• Select a supported Gemini model
• Test the model
• Disable unstable Antigravity OAuth config

Example .env:

Restart:

Test:

See our free AI APIs guide for setup help.

If Antigravity OAuth keeps failing, do not waste hours trying to revive a fragile auth path.

• OpenRouter can route multiple models through one API key
• OpenAI-compatible providers may only need key, base URL, and model name
• Claude, OpenAI, and Gemini API keys are usually easier to monitor and rotate

Example:

See the model guide to pick the right alternative.

If you want OpenClaw running without OAuth token debugging, gateway setup, plugin conflicts, server maintenance, or provider configuration issues, use Ampere.sh. It gives you managed OpenClaw hosting so you can focus on workflows instead of broken auth loops.

Run OpenClaw on Ampere.sh and avoid wasting hours fixing unstable OAuth setup.

If Antigravity OAuth is causing you pain, do these in order:

• Update OpenClaw first
• Check gateway status
• Check plugin availability
• Remove stale OAuth tokens
• Read 401 and 403 errors differently
• Do not bypass provider restrictions
• Use API keys or managed hosting for safer long-term setup

If Antigravity OAuth keeps failing, do not keep patching the same broken path. Move to official API keys or managed OpenClaw hosting.