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Guides · Cursor

Cursor on Sideren.

Cursor's models settings accept an OpenAI-compatible override — point the OpenAI base URL at the gateway, paste your key, and add sdn model names.

Configure

In Cursor Settings → Models:

  • Enable Override OpenAI Base URL and set it to:
https://api.sideren.io/v1
  • Paste your sdn_ key into the OpenAI API Key field.
  • Under model names, add a custom model for each catalog id you want to use — e.g. sdn-gpt-oss-120b, sdn-glm-5, sdn-sonnet-4.6.
  • Click Verify — Cursor sends a probe to /v1/chat/completions and should turn green.

Troubleshooting

  • Verify fails? The base URL must end in /v1 and at least one custom model name must be a valid catalog id — Cursor verifies with the model currently selected.
  • Model "not found"? Model names are exact — sdn-glm-5, not glm-5. Copy ids from the catalog page.
  • Built-in models stopped working?Expected: overriding the OpenAI base URL points Cursor's OpenAI slot at Sideren. Toggle the override off to switch back.
Note

Cursor uses its own accounts for some built-in features; the override governs the chat/composer models you add by name. Every sdn model you add is included in your plan — pick per task, not per budget.