# Exa Search MCP Server (exa-mcp-server) - AgentBreakWatch Reference

> TL;DR Verdict: Exa Search MCP Server (`exa-mcp-server`) is currently at v3.4.2 on NPM (published 2026-10-06), with a 90-day Stability Score of 86/100 (B+) and MEDIUM schema drift risk across 3 releases in the last 90 days. v3.x enables remote hosted MCP by default and renames tool identifiers to web_search_exa and deep_researcher_start.

## Live Telemetry Metadata
- Canonical Page: https://agentbreakwatch.vercel.app/p/exa-mcp
- Category Hub: https://agentbreakwatch.vercel.app/c/search-data (Search, Web Scraping & RAG Research MCP Servers)
- Package Name: `exa-mcp-server`
- Registry: NPM (https://www.npmjs.com/package/exa-mcp-server)
- GitHub Repository: https://github.com/exa-labs/exa-mcp-server
- Vendor: Exa
- Latest Live Version: v3.4.2
- Published Date: 2026-10-06T03:51:39.988Z
- 90-Day Release Count: 3
- Direct Dependencies: 6
- License: MIT
- Stability Score: 86/100 (Grade B+)
- Schema Drift Risk: MEDIUM
- Recommended Exact Pin Command: `npx -y exa-mcp-server@3.4.2`
- Watched Symbols / MCP Tools: web_search_exa, company_research_exa, crawling_exa
- Snapshot Timestamp: 2026-10-24T12:11:27.697Z

## Breaking Change & Schema Drift Summary
v3.x enables remote hosted MCP by default and renames tool identifiers to web_search_exa and deep_researcher_start.

## Migration Diff: Before (Deprecated / Unpinned Pattern)
```
{ "name": "search", "arguments": { "query": "AI agents" } }
```

## Migration Diff: After (Verified v3.4.2 Pattern)
```
{ "name": "web_search_exa", "arguments": { "query": "AI agents", "numResults": 5 } }
```

## Recent Verified Releases
- v3.4.2 (published 2026-10-06) [LATEST]
- v3.4.1 (published 2026-08-18)
- v3.4.0 (published 2026-08-01)
- v3.2.1 (published 2026-04-23)
- v3.2.0 (published 2026-03-27)
- v3.1.9 (published 2026-03-06)