Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
vaquill-mcp
MCP server for the Vaquill legal research API - search US federal and 50-state statutes, regulations, constitutions, and court rules via AI
nucleotide-archive-mcp
MCP server for searching European Nucleotide Archive (ENA) datasets. Find RNA-seq studies, retrieve metadata, and discover related publications to validate research hypotheses.
NetTree Public
Read-only link-destination catalog for agents: search, get, and suggest public fit.
synapse-mcp
Persistent MCP server — session memory, engineering pipeline, and living knowledge base for AI agents
Keyword Research MCP: autocomplete, search volume, difficulty and Google Trends
Pay-per-call keyword research via Apify: autocomplete, volume, CPC, difficulty, ideas, Google Trends
local-research-library-mcp
An MCP server that gives AI agents read-only access to a local research library (PDF, Markdown, BibTeX, RIS, ENW, XML).
sage-solver-mcp
SAGE MCP server — local MCP server exposing optimization tools to LLMs via Claude Desktop
MedicalRecords.com EMR Discovery & Healthcare Research
EMR software discovery, sourced comparisons, and public US healthcare research.
mcp-skillset
Dynamic RAG-powered skills for code assistants via Model Context Protocol
smos-mcp
Semantic Memory Operating System — persistent memory MCP server for Claude Code
literature-discovery-mcp
MCP server for scholarly literature discovery via arXiv and Semantic Scholar
orgraph-mcp
Codebase knowledge graph MCP server — call chains, topology, and hybrid search for coding agents
SEV — Company Discovery from SEC Filings
Ask a research question; in seconds get ranked companies, vetted 10-K/10-Q passages and financials.
SanYu Research Engine
106 deterministic medical research tools: stats, survival, bioinformatics, primers. Auditable.
Casimo Research — casino terms & changes
Source-backed US casino conditions, actual observed changes and explicit data limitations.
snapsearch-mcp
Your Mac screenshots folder is a disaster. This fixes it — with vision, embeddings, and semantic search.
memory-search-mcp
MCP server for memory search. Features record memory, search memory, add knowledge. From MEOK AI Labs.
Dekadans ASO
App Store keyword rankings, popularity, difficulty and keyword research across 175 storefronts.
z3950-mcp
MCP server for searching library catalogs over Z39.50 and retrieving MARC 21 records.
seosiri-semantic-entity-mcp
A sovereign, local-first MCP server for named entity extraction, Wikidata disambiguation, sameAs schema linking, and Knowledge Graph triple construction.
Lounge Frog
Research airport lounges, card access, airline seats, cruises and travel rewards with source links.
sage-mcp
Hybrid semantic search over local knowledge bases and codebases
iflow-mcp_rdondeti-codegrok-mcp
MCP server for semantic code understanding and search
mcp-server-deerflow-kinthai
MCP Server that exposes DeerFlow deep capabilities (research, analysis, visualization) via standard Model Context Protocol