Cito

Cito is a cutting-edge hybrid academic search engine designed for researchers, developers, and AI agents. It combines a vast corpus of 236 million papers from Semantic Scholar with advanced vector search capabilities using SPECTER2 dense embeddings, integrated with re-ranking techniques like Reciprocal Rank Fusion (RRF) and cross-encoder reranking for highly relevant results. Its primary appeal lies in enabling deep literature research through a free web interface, a straightforward JSON API, and a dedicated MCP endpoint that supports powerful AI agents such as Claude Code without upstream rate limits. Built to overcome the throttling limitations of traditional academic APIs, Cito empowers users to perform rapid, large-scale scholarly searches with precision and speed. Its seamless integration and open accessibility make it ideal for developers, academic researchers, and AI-driven applications seeking reliable, high-volume academic data retrieval.