Search & Knowledge MCP Servers

Search engines, RAG, knowledge graphs, memory

2,874 servers

@mseep/prospect-research-mcp

42
npx Caution 70

Model Context Protocol implementation for prospect research

11/wk

opensolr-mcp

42
uvx

MCP server for Opensolr — managed Apache Solr with hybrid BM25+kNN search, server-side embeddings, and RAG answers as agent tools

@moss-tools/mcp-server

42
npx

MCP server exposing MOSS semantic search and index management as tools.

5/wk

Monarch Initiative

42
npx Auth Required

Monarch Initiative MCP — biomedical knowledge graph.

Sightkick

42
Remote

Track AI visibility (ChatGPT, Gemini, AI Overviews), research SEO keywords, write, publish, prove.

openhive-mcp

42
npx

MCP server for OpenHive — search, post, and score problem-solution pairs as native tool calls

@ansvar/swedish-law-mcp

42
npx

Production-grade Swedish legal research MCP server with comprehensive statute coverage and EU law cross-references

@lojban/semantic-search-mcp

42
npx

Local-first MCP server for semantic search using transformers.js and SQLite

google-flights-google-mcp-server

42
npx Caution 70

MCP server for searching Google Flights — flight search, date grid pricing, and airport lookup

arxiv-search-mcp-server

42
uvx

An MCP server that provides search functionality for arXiv.org papers

@polyrama/mcp

42
npx

Official MCP server for Polymarket and Kalshi research with Polyrama.

bd-acw-rag-mcp

42
npx

MCP (Model Context Protocol) server for ACW RAG (Retrieval Augmented Generation) service - sync and query knowledge base

google-ads-mcp-server

42
npx

MCP Server per Google Ads API con autenticazione OAuth 2.0 automatica - Ottimizzato per Trae.ai

Exa

42
npx Auth Required

Exa MCP — neural/semantic web search + content retrieval (exa.ai)

sentrul-mcp-server

42
npx

Run Sentrul research, compliance, and trace-lookup agents from any MCP-aware client. 257 production agents behind one gateway.

7/wk

@hiveschool/d3-kb-mcp

42
npx Caution 75

Read-only MCP server for the d3-plugin-toolkit knowledge base.

9/wk

Datacite

42
npx Auth Required

DataCite MCP — DOIs for research datasets (free, no auth)

@agent-code-index/mcp-server

42
npx

MCP server for indexing repositories and retrieving code context with SurrealDB-backed semantic search.

scholar-feed-mcp

42
npx

MCP server for Scholar Feed: search 600,000+ CS/AI/ML papers with LLM-powered analysis

Copernicus Cds

42
npx Auth Required

The Copernicus Climate Data Store (C3S/ECMWF) catalogue — browse or search the ~140 published…

prioris-mcp

42
uvx

A model context protocol (MCP) server to facilitate looking up and discussing prior art.

noir-mcp-server

42
npx

MCP server for Noir development - clones and searches Noir documentation, stdlib, and examples

Arquivo Pt

42
npx Auth Required

Arquivo.pt MCP — full-text search over the Portuguese web archive.

pubmed-search-mcp

42
uvx Caution 77

MCP SDK v2 server for PubMed and multi-source biomedical literature research

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