
Interactive AI knowledge engine
Research
Search API for AI agents that need real-time web data, deep research, and structured content from one endpoint. Try our API for free.
Search Engine
AI-powered answer engine
Search
A fully open-source AI-powered answer engine with a generative UI.
Chatting
An AI-powered search engine
Automation
HARPA AI combines every AI in one Chrome extension: OpenAI GPT-5.4, Anthropic Claude 4.6, Google Gemini 3.1, Grok, Perplexity, DeepSeek. It automates your online work and saves time searching, writing, coding and summarizing on the web.
Development
AI assistant for technical documentation