Search & Knowledge MCP Servers
Search engines, RAG, knowledge graphs, memory
2,874 servers
Locus
Pay-per-use APIs for agents: web research, data lookups, and metered endpoints billed to credits.
Corebee Customer Support
Hosted support inbox over MCP: answer web chat, WhatsApp, email and SMS, manage knowledge.
atomno-mcp-sudact
Court practice and FAS case cards via hosted API. Coverage depends on the connected service.
@massa-ai/mcp-client
massa-ai MCP server - Semantic code search, memory, and context compression via Model Context Protocol
iflow-mcp_avxxoo-xiaozhi-mcp
A powerful interface for extending AI capabilities through remote control, calculations, email operations, knowledge search, and more.
ScholarMuse
Academic papers, reference verification and research data for AI agents.
mcp-fingerprints
Open-Source MCP Server Passport & Tool Signature Knowledge Base
google-scholar-search-mcp
MCP server for searching Google Scholar — papers, authors, citations, and BibTeX
arxiv-research-mcp
An MCP server exposing arXiv research tools (search, abstracts, author lookup, trending) to LLM agents.
aifai-mcp
AI Collective Memory - MCP server that gives your AI a persistent memory across sessions
mcp-server-zep-cloud
MCP server for Zep Cloud — long-term memory for AI agents
memory-safe
MCP memory server for Claude Code — knowledge graph in SQLite, local ONNX embeddings, token-budgeted retrieval
ZotSeek
AI semantic search for Zotero, with a built-in MCP server for AI agents (Claude Code, Codex). Find papers by meaning. 100% local and private.
st3v3nmw/sourcerer-mcp
- MCP for semantic code search & navigation that reduces token waste
qartez-mcp
Semantic code intelligence MCP server for Claude Code - project maps, symbol search, impact analysis, and more
mychatarchive
Local-first AI memory archive. Import ChatGPT, Claude, and Grok exports, generate semantic embeddings, and search via MCP server. Zero cloud, zero cost.
BGPT - Scientific Paper Search
Search scientific papers with structured experimental data from full-text studies
rcsb-mcp
An MCP server for interrogating PDB structures — search, inspect, and cross-reference across the RCSB Search, Data, and Sequence Coordinates APIs
io.github.TinySuiteHQ/tinycontext
Token-light local memory with SQLite hybrid retrieval for MCP agents.
io.github.OMOPHub/omophub-mcp
Search, lookup, map, and navigate OMOP medical vocabularies via AI agents
MarkMesh
Trademark search, monitoring and conflict research across 30+ registers, with provenance.
IT Glue
IT Glue MCP server for MSPs — documents, flexible assets, semantic vector search, RBAC, and BYOK
io.github.cyanheads/cyanheads-mcp-server
Fleet discovery for the cyanheads MCP ecosystem — semantic search + install snippets.
Amber
Long-term memory for AI assistants: permanent, portable across clients, searchable and exportable.