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What is Modular?

Modular is a backend service that lets you add AI features to applications without building the underlying infrastructure yourself. Instead of writing code to handle embeddings, vector storage, chat history, and context management, you call two functions: one to set up your AI feature and one to run it. The service manages the technical details in the background. It's aimed at developers who want to incorporate AI capabilities into their apps quickly, without spending time on the plumbing that usually comes with it. Modular uses a freemium model, so you can try it without payment before committing to a paid plan.

Key Features

Two-function API

initialise your AI feature once, then call it repeatedly with minimal code

Built-in context and chat history management

the tool tracks conversation state automatically

Embeddings and retrieval

handles vector storage and similarity search without separate setup

Multiple AI model support

works with different language models through a unified interface

Freemium pricing

start for free and upgrade as your usage grows

Pros & Cons

Advantages

  • Significantly reduces development time by eliminating boilerplate code for AI features
  • Abstracts away complexity around embeddings and vector databases
  • Low barrier to entry with a free tier
  • Straightforward API design makes it quick to integrate

Limitations

  • Limited flexibility if you need fine-grained control over AI model behaviour or retrieval logic
  • Vendor lock-in: switching away requires rewriting the integration layer

Use Cases

Adding a chatbot to a SaaS product without building the backend from scratch

Building customer support bots that remember conversation history

Creating document search features with semantic understanding

Prototyping AI features quickly before deciding on a permanent solution