OpenRouter Guide

OpenRouter provides one OpenAI-compatible API for many hosted models. Use Fetch Models to see what is available to your account.

Add the connection

1. Open 3sparks Chat and go to Connections.
2. Tap + and choose OpenRouter.
3. Leave the name blank for a generated name, or enter your own.
4. Confirm the base URL is openrouter.ai/api and the route prefix is /v1/.
5. Paste your OpenRouter API key into API Token. Tokens are stored in Keychain.
6. Tap Create Connection.
7. Tap Fetch Models, choose a default model, and tap Done.

Model names and availability

OpenRouter model names usually include a provider prefix. Availability depends on your OpenRouter account, provider status, and model routing. If a model is unavailable, switch models or check the OpenRouter dashboard.

Troubleshooting

• Confirm your API key starts with sk-or-.
• Check OpenRouter credits, provider routing, and model availability.
• If a selected model rejects images, switch to a vision-capable model.
• Lower token limits for smaller models or providers with stricter context windows.