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Superinterface

What it is

Superinterface is an open-source framework and platform for building and deploying AI assistants with production-ready user interfaces. It provides a set of React components and a backend infrastructure to handle streaming, tool calls, and conversation state. As of May 2026, it supports Computer Use, native MCP integration, and a full Tools REST API.

What problem it solves

It bridges the gap between AI agents and the end-user by providing a structured way to build conversational and interactive interfaces. It eliminates the need to build custom UI components and manage complex backend logic for stateful conversations, tool orchestration, and multi-modal interactions.

Where it fits in the stack

Framework / UI Library / Assistant Backend.

Typical use cases

  • AI-Powered Customer Support: Building chat interfaces that can perform actions like web search or file retrieval.
  • Agentic Desktop Apps: Utilizing Computer Use (via Anthropic/OpenRouter) to control virtual computers through the assistant.
  • Self-Hosted AI Portals: Deploying a full-stack assistant environment (using @superinterface/server) on private infrastructure.
  • Voice Assistants: Building low-latency voice-to-voice assistants using the OpenAI Realtime API.

Strengths

  • Production-Ready UI: High-quality, customizable React components with support for Interactive Components (forms, cards, surveys).
  • Advanced Tooling: Native support for MCP (Model Context Protocol) and a comprehensive Tools REST API for managing assistant capabilities programmatically.
  • Multi-Modal Support: Out-of-the-box rendering for images, video, and audio generated by assistants or code interpreters.
  • Flexible Storage: Support for OpenAI/Azure Responses API and stateful thread storage.

Limitations

  • React-Centric: The primary frontend library is built for React/Next.js/Radix-UI.
  • Provider Availability: Some advanced features (like image generation) are tied to specific native provider capabilities.

When to use it

  • When you want to build high-quality, feature-rich chat interface with minimal frontend effort.
  • When you require advanced agentic features like Computer Use or native MCP tool integration.
  • When you want to self-host your assistant infrastructure for privacy and control.

When not to use it

  • For backend-only AI tasks with no user interface requirement.
  • If you require a completely custom, non-React UI and prefer to manage all low-level API orchestration yourself.

Getting started

Installation

npm install @superinterface/react @tanstack/react-query @radix-ui/themes

Self-Hosted Server (Docker)

docker run -d \
  --name superinterface-server \
  -p 3000:3000 \
  -e DATABASE_URL="your-db-url" \
  supercorp/superinterface-server:latest

Tools REST API Example

# List assistant tools
curl -X GET https://api.superinterface.ai/api/cloud/assistants/{assistantId}/tools \
  -H "Authorization: Bearer YOUR_API_KEY"

# Create a new Web Search tool
curl -X POST https://api.superinterface.ai/api/cloud/assistants/{assistantId}/tools \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{"type": "web_search"}'

Conversation history truncation

You can now configure truncation via the API: 

{
  "truncationType": "LAST_MESSAGES",
  "truncationLastMessagesCount": 10
}

Licensing and cost

  • Open Source: Yes (MIT License)
  • Cost: Free (OSS); Usage-based for Superinterface Cloud.
  • Self-hostable: Yes (@superinterface/server)

Sources / References

Backlog

  • [x] Perform quarterly technical freshness audit. (Completed: 2026-05-31)

Contribution Metadata

  • Last reviewed: 2026-05-31
  • Confidence: high