Weaviate Integration

Weaviate is an open-source vector database with built-in support for AI model integrations. It supports generative search, where retrieved results are passed to an LLM for summarization or answer generation.

Weaviate's generative modules support custom OpenAI-compatible endpoints.

Prerequisites

An LLM API account with an API key
Weaviate 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 Weaviate

Configure Weaviate's generative module:

OPENAI_APIKEY=your-llm-api-key-here
OPENAI_BASEURL=https://api.llmapi.ai/v1

Or in collection config:

collection.configure.generative(
generative_provider="openai",
model="openai/gpt-4o",
api_key="your-llm-api-key-here",
base_url="https://api.llmapi.ai/v1"
)

Use generative search queries powered by LLM API.

Test the Integration

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

Weaviate's generative search sends retrieved objects to LLM API for intelligent answer generation.

Benefits of Using LLM API with Weaviate

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.