Braintrust Integration

Braintrust is an enterprise AI product stack that includes evaluation, logging, and a proxy for LLM applications. Its AI proxy provides caching, rate limiting, and unified access to multiple providers.

Braintrust's proxy can be configured to route requests to LLM API.

Prerequisites

An LLM API account with an API key
Braintrust installed or accessible

Setup

Get Your LLM API Key

Log in to your LLM API dashboard
Click Create Key to Start
Copy your new API key immediately — it will only be shown once
Store the key securely (e.g., in a password manager or .env file)

LLM API is an OpenAI-compatible gateway that gives you access to dozens of AI models through a single API key and endpoint.

Configure LLM API with Braintrust Proxy

Configure environment variables:

export OPENAI_API_KEY="your-llm-api-key-here"
export OPENAI_BASE_URL="https://api.llmapi.ai/v1"

Or configure in Braintrust's project settings to use LLM API as a provider.
Braintrust will log and evaluate all LLM API interactions.

Test the Integration

Verify that Braintrust can successfully communicate with LLM API by sending a test request. All requests will now be routed through LLM API.

Braintrust's evaluation tools help you measure and improve your LLM API application's quality.

Benefits of Using LLM API with Braintrust

Multi-Provider Access: Use models from OpenAI, Anthropic, Google, and more through a single API
Cost Control: Track and limit your AI spending with detailed usage analytics
Unified Billing: One account for all providers instead of managing multiple API keys
Caching: Reduce costs with response caching for repeated requests

View all available models on the models page.