How to Use Assisters API in 2026: OpenAI SDK Guide for Chat & Embeddings

Quick Answer

The Assisters API is OpenAI-compatible, so if you already use the openai SDK, point it at https://assisters.dev/api/v1 with your ASSISTERS_API_KEY and keep your existing code. The default model is assisters-chat-v1, and endpoints cover chat, embeddings, moderation, audio, and reranking.

• Base URL: https://assisters.dev/api/v1
• Default model: assisters-chat-v1
• Auth: Bearer ${ASSISTERSAPIKEY}

What Is the Assisters API?

The Assisters API is an OpenAI-compatible AI gateway from Misar AI, offering chat/completions with streaming, embeddings, moderation, audio transcription, reranking, and model listing — all using the shapes developers already know from OpenAI.

How to Get Started

1. Sign up at assisters.dev and verify your email.
2. Create an API key in the dashboard.
3. Add ASSISTERS_API_KEY to your .env.
4. Install the openai package for Node or Python.
5. Point baseURL to https://assisters.dev/api/v1.
6. Call chat.completions.create.
7. Stream responses with stream: true.
8. Monitor usage on the dashboard.

Sample Usage (TypeScript)

import OpenAI from 'openai';

const ai = new OpenAI({
  baseURL: 'https://assisters.dev/api/v1',
  apiKey: process.env.ASSISTERS_API_KEY!,
});

const response = await ai.chat.completions.create({
  model: 'assisters-chat-v1',
  messages: [{ role: 'user', content: 'Hello' }],
  stream: true,
});

Features and Benefits

• OpenAI-compatible shapes for drop-in adoption
• Streaming on chat completions
• Embeddings for RAG pipelines
• Moderation for safety
• Audio transcription for voice workflows
• Reranking for search relevance
• Predictable pricing with Pro at $9/mo
• Team plans for shared billing

Pricing

Assisters offers a free tier, Pro at $9/mo, and team plans. Pricing is designed for predictability, not surprise per-token spikes.

Conclusion

The Assisters API is a pragmatic choice in 2027: familiar SDK, predictable pricing, OpenAI-compatible endpoints, and data sovereignty baked in. Start free, see the API docs, or view pricing.