Obsidian Smart Connections Integration

Smart Connections is an Obsidian plugin that uses AI to find connections between your notes and provide an AI chat interface that understands your knowledge base.

Smart Connections supports custom API endpoints for its AI features.

Prerequisites

An LLM API account with an API key
Obsidian Smart Connections 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 in Smart Connections

Open Obsidian Settings → Smart Connections.
In the "Chat Model" section, select "Custom / OpenAI-compatible".
Enter:
- API Key: paste the key you copied from app.llmapi.ai/api-keys
- API URL: https://api.llmapi.ai/v1
- Model: openai/gpt-4o
Close settings.

Test the Integration

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

Smart Connections' AI chat can answer questions about your notes using LLM API models.

Benefits of Using LLM API with Obsidian Smart Connections

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.