Exa
Search API and agentic search engine that gives AI agents fast, token-efficient access to web and company data
Exa is a search engine built for AI agents. Developers' agents and apps use its APIs to search a large index of public web and private data, fetch page contents, run deep research and monitor the web, getting back results, answers or structured output.
Key features:
- Search API with latency modes from about 450ms to deep research.
- Categories for news, companies, research papers, people and financials.
- Contents API with token-efficient highlights for LLM context.
- Agent API for asynchronous deep research with cited, structured output.
- Monitors that run searches on a schedule and send updates by webhook.
- Search over GitHub repos and docs for coding agents.
Exa offers an MCP server, a Claude connector, a ChatGPT plugin and 50+ integrations. The free Starter plan includes $10 of credits a month with no payment method. Pay-as-you-go pricing starts at $4 per 1,000 searches, $1 per 1,000 pages of contents and $0.012 to $1 per agent run. Exa is SOC 2 Type II compliant, and Enterprise adds HIPAA, zero data retention, SSO and custom indexes.