Flowise Integration

Flowise is an open-source drag-and-drop tool for building customized LLM flows. It lets you connect ChatModels, Document Loaders, Vector Stores, and Agents into visual workflows.

Flowise's ChatOpenAI node supports custom base URLs, making LLM API integration straightforward.

Prerequisites

An LLM API account with an API key
Flowise 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 Flowise

Open Flowise and create a new chatflow.
Drag a "ChatOpenAI" node onto the canvas.
Configure:
- OpenAI API Key: paste the key you copied from app.llmapi.ai/api-keys
- Base Path: https://api.llmapi.ai/v1
- Model Name: openai/gpt-4o
Connect to other nodes and save the chatflow.

Test the Integration

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

Flowise's credential management lets you save your LLM API key once and reuse it across flows.

Benefits of Using LLM API with Flowise

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.