Cursor
Enter Relayvia's URL and your API key in Cursor's model settings.
Cursor connects through its OpenAI-compatible settings.
Install
Download Cursor from the official site.
Settings screen
Open Cursor Settings → Models, enter the OpenAI API Key under API Keys, turn on Override OpenAI Base URL and enter the URL below, then add the model name.
| Field | Value |
|---|---|
| OpenAI API Key | sk-... |
| Override OpenAI Base URL | https://api.relayvia.dev/v1 |
| Model name | gpt-5.5 |
Replace sk-... with an API key from the console.
Environment variables
Note
This tool does not read environment variables; use the settings screen above.
Troubleshooting
| Symptom | Cause | Fix |
|---|---|---|
| 401 invalid_api_key | Wrong, disabled or expired API key | Check the key's status in the console and copy the full string starting with sk-; create a new key if needed. |
| 402 insufficient_quota | The account's credits, the key's limit or the team member's limit is used up, or the account is frozen | Top up, or ask an admin to raise the limit. Retrying will not help. |
| 403 forbidden | The key may not use the model, the source IP is not on the allowlist, or the account is disabled | Check the key's allowed models and IP allowlist; use official model names as listed by /v1/models. |
| 429 rate_limited | Too many requests | Wait for Retry-After and retry; contact us if you regularly need more. |
| Cannot connect (timeout, DNS error or 404) | Wrong base URL or no network access | Make sure Override OpenAI Base URL is https://api.relayvia.dev/v1 and that you clicked Verify. |