// IDE Plugin
Use Roo Code with llmrelay
The Cline fork with multi-mode agents and browser use. Point it at api.llmrelay.dev and get the same models at half the price.
Recommended model
claude-opus-5
Route
anthropic-compatible
On llmrelay
$2.5/M · $12.5/M
Setup
- 1 Install Roo Code from the VS Code marketplace.
- 2 Click the Roo Code icon.
- 3 Provider → "Anthropic".
- 4 API Key = your llmrelay key.
- 5 Base URL → https://api.llmrelay.dev.
- 6 Model → claude-opus-5 for agent mode, sonnet-5 for chat.
Config
Provider: Anthropic API Key: sk-llmrelay-... Base URL: https://api.llmrelay.dev Model: claude-opus-5
Smoke test
Copy, paste, run. If you get JSON back with a message, you're good.
curl https://api.llmrelay.dev/v1/messages \
-H "x-api-key: $LLMRELAY_KEY" \
-H "anthropic-version: 2023-06-01" \
-H "Content-Type: application/json" \
-d '{"model":"claude-opus-5","max_tokens":50,"messages":[{"role":"user","content":"say hi"}]}' Gotchas
- !Roo Code Boomerang mode fires parallel calls. Set a soft rate limit in your llmrelay dashboard if you're new.
You need an llmrelay key first
Sign up in about 30 seconds — free to create an account, no subscription, $10 minimum top-up.