Exa
Wire your coding agent to Exa for live web search, code-context retrieval, and company research while you build or validate a product idea.
Overview
Exa is a MCP server for the Idea phase that gives coding agents fast web search, code-context retrieval, and company research through Exa’s hosted endpoint.
What is this MCP server?
- Hosted HTTP MCP at https://mcp.exa.ai/mcp—no local server process required
- Web search and intelligent crawling tuned for agent workflows
- Exa-code context tool for coding-oriented retrieval alongside general web search
- Company research capability for competitor and market due diligence
- One-click install paths documented for Cursor and VS Code MCP config
- Hosted MCP endpoint: https://mcp.exa.ai/mcp
- npm package: exa-mcp-server
- Documented capability areas: web search, Exa-code, and company research
Community signal: 4.6k GitHub stars.
What problem does it solve?
Agents cannot reliably cite what shipped yesterday on the web, so solo builders waste time manually Googling competitors, docs, and code patterns between prompts.
Who is it for?
Indie builders who want Perplexity-style retrieval inside Cursor or Claude Code while scoping ideas, comparing competitors, or looking up APIs and examples mid-build.
Skip if: Teams that need only private-repo RAG with no external search spend, or workflows that require guaranteed offline/air-gapped coding with zero third-party API calls.
What do I get? / Deliverables
After you add the Exa MCP URL and API key, your agent can fetch current web and code context inside the IDE so research and implementation answers stay grounded in live sources.
- Live web search results surfaced inside agent conversations
- Code-oriented context retrieval via Exa-code tooling
- Structured company research for competitor and market checks
Recommended MCP Servers
Journey fit
Exa is primarily a discovery and evidence layer: agents pull fresh pages, comparable products, and market facts before you commit scope—so the canonical shelf is Idea, even though builders also use it during Build for code search. Research is the default job: competitive scans, audience signals, and technical references from the open web—not shipping, hosting, or analytics dashboards.
How it compares
Hosted search MCP integration, not a repository skill or local embeddings pipeline.
Common Questions / FAQ
Who is Exa for?
Exa is for solo and indie developers using MCP-enabled agents who need trustworthy, up-to-date web and code context without leaving Claude Code, Cursor, or VS Code.
When should I use Exa?
Use Exa when you are researching markets and competitors, validating claims against live pages, or need current documentation and code examples while implementing features.
How do I add Exa to my agent?
Create an API key at dashboard.exa.ai, then register the HTTP MCP server URL https://mcp.exa.ai/mcp in your client’s MCP config (for example ~/.cursor/mcp.json or .vscode/mcp.json) with your key per Exa’s documentation.