Exa - 2026 Pricing, Features, Reviews & Alternatives

Exa is a cloud-based web search API built for AI applications, large language models, and autonomous agents. Accessible via REST API and SDKs for Python and JavaScript, it indexes web content with a focus on high-quality, semantically rich sources rather than ad-optimized pages. Developers and AI teams can query the web using natural language or keyword inputs, retrieve full page contents, and filter results by domain, date, or content type, making it suited for retrieval-augmented generation (RAG) pipelines, research automation, and agent workflows.

The platform offers multiple search modes including neural (semantic) search, keyword search, and a combined mode, allowing teams to tune retrieval behavior to their use case. The contents endpoint returns cleaned, structured text from web pages, reducing the need for custom scraping infrastructure. Auto search mode dynamically selects the optimal retrieval strategy per query. Exa also provides a research-focused interface alongside the API, supporting direct use by analysts and knowledge workers without requiring code.

Organizations across AI development, market intelligence, academic research, and enterprise knowledge management use the platform to ground AI outputs in current, sourced web data. By connecting AI systems to live web content with structured, machine-readable results, the platform supports more accurate, citation-backed AI responses and reduces hallucination risk in production AI deployments.