Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
memento-mcp
Memento MCP: A Knowledge Graph Memory System for LLMs
gptr-mcp
MCP server for enabling LLM applications to perform deep research via the MCP protocol
continuum-mcp
Continuum — a persistent, multi-agent Model Context Protocol server for shared code context and cross-agent memory
io.github.morluto/gitcontribute
Local-first GitHub contribution research workbench
Komplyt Zero
Persistent working memory for AI agents: a knowledge graph with semantic search and decay.
Australian Tax MCP
Cited Australian tax answers from 34,500+ ATO documents, legislation and public rulings.
Skills Board
Search your team's shared AI-skill library, get install commands, and save skills from your agent.
io.github.Dakera-AI/dakera-mcp
Agent memory engine — 106 MCP tools, self-hosted, single Rust binary
mozg
Exam-scored knowledge brains your agent searches over MCP, plus a public list of their gaps.
okf-mcp
Validate, search, graph, and safely author local Open Knowledge Format bundles.
lacuna-research-mcp
MCP server for Lacuna, a research map for machine learning: search directions, papers, authors, venues, and AI-generated research proposals.
io.github.cyanheads/orcid-mcp-server
Researcher profiles, works, affiliations, funding, and peer reviews from the ORCID registry.
AISOTools
Check whether AI assistants recommend a product, and search or compare 3,000+ AI tools.
Visibly AI — SEO MCP Server
Remote SEO/GEO MCP: Search Console, keyword research, backlinks, competitor & on-page audits.
AppRankHero
App Store and Google Play keyword ranks, keyword research and competitors for your apps.
Elfsight AI Chatbot
Read conversations, leads, knowledge base and analytics of your Elfsight AI Chatbot widgets.
MCP Registry Search: Find, Discover & Install MCP Servers & Tools | Directory, Catalog, Marketplace
MCP registry & directory: search, find & install 31k+ MCP servers & tools. Catalog and marketplace.
Zekra
Long-term memory and a knowledge graph for AI agents: recall, notes, secrets and data sources.
Word Orb — English vocabulary for reader glossaries
AI-assisted English lexical records. Stored-only batch lookup; coverage and quality vary.
@jalipata/mcp-memory
Agnostic persistent memory server for AI tools via MCP. Knowledge graph stored in SQLite with FTS5 keyword search, multi-tenant by namespace.
@helpnest/mcp
MCP server for HelpNest — expose your knowledge base to AI assistants
knowledge-mcp-server
MCP server for semantic search, CRUD, and graph operations over hierarchical knowledge bases stored as Markdown with YAML frontmatter
prexist
MCP server exposing Prexist product and skill research tools
Aviado AI
Cited supplement evidence, biomarker effects, interaction checks and brand quality