# Search and research MCP servers online

Check the source documentation for each connection.

18 MCP servers. Also on the [web page](https://mcpdirectory.fyi/gb/global/online/category/search-research).

## MCP servers

1. [Companies House](https://mcpdirectory.fyi/gb/global/online/companies-house.md), Search and research, Online: UK Companies House public register: search companies, officers, ownership, filings and documents.
2. [CPU Performance Engineering](https://mcpdirectory.fyi/gb/global/online/cpu-performance-engineering.md), Developer tools, Online: A CPU performance engineering brain: a vetted reading list, benchmarks and cited source passages
3. [Gemini](https://mcpdirectory.fyi/gb/global/online/gemini.md), Search and research, Online: Model Context Protocol server for Google Gemini AI with chat, research, and grounding
4. [Google Knowledge Graph](https://mcpdirectory.fyi/gb/global/online/google-knowledge-graph.md), Search and research, Online: Search Google's Knowledge Graph for structured information about real-world entities
5. [PageIndex MCP](https://mcpdirectory.fyi/gb/global/online/pageindex-mcp.md), Knowledge and memory, Online: Reasoning-based RAG system for chatting with long PDFs. Supports local and online files.
6. [Pubcrawl](https://mcpdirectory.fyi/gb/global/online/pubcrawl.md), Health and science, Online: PubMed & Europe PMC literature search, US/UK drug labelling, and clinical trials for AI assistants.
7. [UK Legal Research](https://mcpdirectory.fyi/gb/global/online/uk-legal-research.md), Search and research, Online: UK legal research — case law, legislation, Hansard, bills, votes, committees, HMRC, citations
8. [Award Travel Finder](https://mcpdirectory.fyi/gb/global/online/award-travel-finder.md), Other tools, Online: Search award flight availability and points pricing across 27 airlines and 23 loyalty programs.
9. [Verified Handles](https://mcpdirectory.fyi/gb/global/online/verified-handles.md), Search and research, Online: Look up people, organisations and things, and their official social media accounts and identifiers.
10. [Wayback Machine](https://mcpdirectory.fyi/gb/global/online/wayback-machine.md), Search and research, Online: MCP server and CLI tool for interacting with the Wayback Machine without API keys
11. [Criterion](https://mcpdirectory.fyi/gb/global/online/criterion.md), Search and research, Online: Semantic search across 6,236 Quran verses and 12,416 authentic Hadiths for Islamic guidance.
12. [Codealive Mcp](https://mcpdirectory.fyi/gb/global/online/codealive-mcp.md), Developer tools, Online: Semantic code search and analysis from CodeAlive for AI assistants and agents.
13. [Fanout](https://mcpdirectory.fyi/gb/global/online/fanout.md), Sales and marketing, Online: Multi-URL comparative content analysis with topical gap detection
14. [Mcp Omnisearch](https://mcpdirectory.fyi/gb/global/online/mcp-omnisearch.md), Search and research, Online: MCP server for integrating Omnisearch with LLMs
15. [Miru](https://mcpdirectory.fyi/gb/global/online/miru.md), Developer tools, Online: Hybrid semantic and keyword code search for coding agents.
16. [Notebooklm Mcp Secure](https://mcpdirectory.fyi/gb/global/online/notebooklm-mcp-secure.md), Knowledge and memory, Online: Security-hardened NotebookLM MCP with post-quantum encryption
17. [Open Library](https://mcpdirectory.fyi/gb/global/online/open-library.md), Search and research, Online: Search books and authors on the Internet Archive's Open Library
18. [Marmot Data Catalog](https://mcpdirectory.fyi/gb/global/online/marmot-data-catalog.md), Data and databases, Online: Open-source data catalog. Search assets, explore lineage, and find ownership.

## Other categories in Online

- [Developer tools](https://mcpdirectory.fyi/gb/global/online/category/developer-tools.md): 20 MCP servers
- [Knowledge and memory](https://mcpdirectory.fyi/gb/global/online/category/knowledge-memory.md): 14 MCP servers
- [Data and databases](https://mcpdirectory.fyi/gb/global/online/category/data-databases.md): 10 MCP servers
- [Productivity and collaboration](https://mcpdirectory.fyi/gb/global/online/category/productivity-collaboration.md): 10 MCP servers
- [Other tools](https://mcpdirectory.fyi/gb/global/online/category/other-tools.md): 7 MCP servers
- [AI and media generation](https://mcpdirectory.fyi/gb/global/online/category/ai-media-generation.md): 4 MCP servers
- [Communication](https://mcpdirectory.fyi/gb/global/online/category/communication.md): 3 MCP servers
- [Sales and marketing](https://mcpdirectory.fyi/gb/global/online/category/sales-marketing.md): 3 MCP servers
- [Security](https://mcpdirectory.fyi/gb/global/online/category/security.md): 3 MCP servers
- [Finance and crypto](https://mcpdirectory.fyi/gb/global/online/category/finance-crypto.md): 2 MCP servers
- [Health and science](https://mcpdirectory.fyi/gb/global/online/category/health-science.md): 2 MCP servers
- [Cloud and DevOps](https://mcpdirectory.fyi/gb/global/online/category/cloud-devops.md): 1 MCP server
- [Web and browser automation](https://mcpdirectory.fyi/gb/global/online/category/web-browser-automation.md): 1 MCP server