// IDE Agent
Use Cursor with llmrelay
The AI-first VS Code fork with agent mode. Point it at api.llmrelay.dev and get the same models at half the price.
Recommended model
claude-opus-4-7
Route
openai-compatible
On llmrelay
$2.5/M · $12.5/M
Setup
- 1 Open Cursor Settings → Models.
- 2 Toggle off every default model to force custom endpoints.
- 3 Click "Add model" and enter claude-opus-4-7.
- 4 Set OpenAI API Key = your llmrelay key.
- 5 Set OpenAI Base URL = https://api.llmrelay.dev/v1.
- 6 Click "Verify" and start a chat.
Config
// Cursor Settings → Models
{
"OpenAI API Key": "sk-llmrelay-...",
"OpenAI Base URL": "https://api.llmrelay.dev/v1",
"Custom models": ["claude-opus-4-7", "claude-sonnet-4-6", "claude-haiku-4-5"]
} Smoke test
Copy, paste, run. If you get JSON back with a message, you're good.
curl https://api.llmrelay.dev/v1/chat/completions \
-H "Authorization: Bearer $LLMRELAY_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"claude-opus-4-7","messages":[{"role":"user","content":"say hi"}]}' Gotchas
- !Cursor agent mode issues many small tool calls. Opus 4.7 is worth the extra $ vs Sonnet if you use agent mode daily.
- !If Cursor errors "model not found", make sure you added the exact model id in the custom list.
You need an llmrelay key first
Sign up in about 30 seconds. New accounts get $0.20 in free credit — enough to smoke-test every model.