How to Get $35 in Free Claude Opus 5 Credits

Need free API credits for Claude Opus 5? Aerolink is offering $35 in credit for a week.

The trial activates automatically when you sign in with Google — no card, no manual claim. You can use the credits in Codex, OpenCode, Cursor, or any tool that supports a custom API endpoint.

What You Need

• A Google account.
• OpenCode Desktop installed.

Tutorial

1. Sign up here and log in with Google. The free trial activates automatically, no card required.
2. Create an API key.
3. Open OpenCode Desktop and press Ctrl+,.
4. Add a custom provider with the ID aerolink.
5. Enter the API key.
6. Set the Model ID to claude-opus-5.

Wrapping Up

Once the provider is added, the endpoint also works in other tools that support custom OpenAI-compatible endpoints. Keep in mind this service uses a China-based proxy and is not an official Anthropic channel, so use it at your own risk.