Search & Knowledge MCP Servers

MCP memory server for Claude Code — knowledge graph in SQLite, local ONNX embeddings, token-budgeted retrieval

WeKnora MCP Server - Model Context Protocol server for WeKnora API

MCP server for context management with markdown storage, CRUD operations, and search

Literature search, GB/T 7714/APA citations and BibTeX via Crossref, OpenAlex, Semantic Scholar.

Semantic search MCP server for Claude Code conversation sessions

Court practice and FAS case cards via hosted API. Coverage depends on the connected service.

DocsAgent - give AI agents instant, private access to your personal knowledge base. Zotero MCP server (Python) over a resident native C++ search engine.

Your personal knowledge base and memory for AI agents: search, explore and feed your myBrain.

MCP server for Discrete Mathematics: Boolean Logic, Algorithms, Number Theory, Cryptography. 21 AI-ready tools for education and research.

High-performance MCP server for semantic codebase search with hybrid retrieval (vector + BM25 + symbol search)

OpenRouter MCP server for research agents

A powerful interface for extending AI capabilities through remote control, calculations, email operations, knowledge search, and more.

MCP server with 129 cognitive memory tools for AI agents — persistent memory, emotional recall, knowledge graphs, metacognition, goal tracking, and more

An MCP server that uses a knowledge graph to store and recall structured memory for AI models

MCP server for Zep Cloud — long-term memory for AI agents

Keyless MCP server for icanhazdadjoke: random dad jokes, search, lookup by id.

Academic papers, reference verification and research data for AI agents.

AI Collective Memory - MCP server that gives your AI a persistent memory across sessions

Hosted support inbox over MCP: answer web chat, WhatsApp, email and SMS, manage knowledge.

Pay-per-use APIs for agents: web research, data lookups, and metered endpoints billed to credits.

MCP server for Open Knowledge Format (OKF) bundles — expose okf-ingest's deterministic consume verbs (search, context, graph impact, diff, doctor) as agent tools.

An MCP server exposing arXiv research tools (search, abstracts, author lookup, trending) to LLM agents.

MCP server for Google Scholar through HasData's hosted API. 1,000 free credits every month.

Persistent shared memory for Claude Code — MCP server with DuckDB vector search, semantic dedup, and ambient intelligence for team knowledge