MCP Omnisearch

mcp-omnisearch

A Model Context Protocol (MCP) server that provides unified access to Tavily, Brave, Kagi, Exa AI, GitHub, Linkup, and Firecrawl through four consolidated tools.

Tools

web_search

Search the web with Tavily, Brave, Kagi, Exa, or Kagi Enrichment.

{
 "query": "sveltekit remote functions site:docs.svelte.dev",
 "provider": "brave",
 "limit": 10
}

ai_search

Get sourced AI answers with Kagi FastGPT, Exa Answer, or Linkup.

{
 "query": "Explain the differences between REST and GraphQL",
 "provider": "kagi_fastgpt"
}

github_search

Search GitHub code, repositories, or users.

{
 "query": "filename:remote.ts @sveltejs/kit",
 "search_type": "code",
 "limit": 5
}

web_extract

Extract, crawl, scrape, summarize, or find similar content with Tavily, Kagi, Firecrawl, or Exa.

{
 "url": "https://example.com/long-article",
 "provider": "kagi",
 "mode": "summarize"
}

Documentation

• Provider selection — choose providers by task, key, mode, and capability.

• Search operators — operator support matrix and tested examples.

• Large results — inline vs file response behavior and remote deployment caveats.

• Deployment — MCP client, WSL, Docker, cloud, and Firecrawl setup.

• Troubleshooting — keys, access, validation, rate limits, and common failures.

Environment variables

• TAVILY_API_KEY

• KAGI_API_KEY

• BRAVE_API_KEY

• GITHUB_API_KEY

• EXA_API_KEY

• LINKUP_API_KEY

• FIRECRAWL_API_KEY

• FIRECRAWL_BASE_URL optional, for self-hosted Firecrawl

• OMNISEARCH_LARGE_RESULT_MODE optional, file default or inline

Development

pnpm install
pnpm run build
pnpm test

Please read CONTRIBUTING.md before opening a PR.

License

MIT License - see LICENSE.

Acknowledgments

Built on Model Context Protocol, Tavily, Kagi, Brave Search, Exa AI, Linkup, and Firecrawl.

Quick start

pnpm install
pnpm run build
node ./dist/index.js

Configure the server in your MCP client with whichever provider keys you have. Providers without keys are skipped and the rest keep working.

{
 "mcpServers": {
 "mcp-omnisearch": {
 "command": "node",
 "args": ["/path/to/mcp-omnisearch/dist/index.js"],
 "env": {
 "TAVILY_API_KEY": "your-tavily-key",
 "KAGI_API_KEY": "your-kagi-key",
 "BRAVE_API_KEY": "your-brave-key",
 "GITHUB_API_KEY": "your-github-token",
 "EXA_API_KEY": "your-exa-key",
 "LINKUP_API_KEY": "your-linkup-key",
 "FIRECRAWL_API_KEY": "your-firecrawl-key"
 }
 }
 }
}