Search & Knowledge MCP Servers

Local-first memory database and continuity journal MCP server

Persistent knowledge graph and MCP server for AI workflows with git-tracked project context.

Read-only gates of autonomous trading agents with deterministic execution: cost, data, validation.

Integrates Lineai's powerful codebase knowledge graphs with a Model Context Protocol (MCP) server

Access the OpenAlex academic research catalog — 270M+ publications.

ElevenLabs Conversational AI: agents, calls, conversations, and knowledge base for MCP hosts

Shared, persistent memory for AI assistants, built on the Zettelkasten method.

AI knowledge graph for architecture, portfolio, and digital strategy management.

DigiKey and Mouser MCP server for component research, BOM analysis, and sourcing.

Governed graph-native agent memory: knowledge extraction, fusion, hybrid RAG, scoped access tokens.

MCP server for the CompanyData API: company search, enrichment and city lookup from official business registers in 200+ countries. Local (stdio) or hosted at https://companydata.com/mcp/.

Amazon research from AMZScout data: analyze products & niches, keywords/PPC, and brand catalogs.

Deezer MCP — public catalog (no auth required).

MCP server for semantic search over markdown notes and code using embeddings

SURA MCP server - search, read, and edit your research workspace from any AI assistant

中华版本语料库平台官方 MCP Server — chunk_search / deep_research / book_search（默认一把 API Key，数据集在平台后台切换）

CWI Discovery Engine: 29-tool music catalog MCP — search, sync, Radio 365 live, chaining.

Zotero MCP Server for managing reference library

Agent-facing CLI and MCP server for evidence-grounded IETF RFC research.

Core interfaces and reference storage adapters for the GGUI MCP server — UiGenerator, GguiSessionStore, BlueprintProvider, AuthAdapter, plus in-memory and SQLite implementations. The pluggable seam layer @ggui-ai/mcp-server is built on.

UNESCO UIS education statistics MCP server — remote, for the UNESCO Institute for Statistics (UIS): ~5,000 indicators on education, science/R&D, culture and communication by country, region and year — hosted, nothing to install, no API key, with source UR

Agent-driven knowledge base — immutable raw sources + mutable wiki + self-checking lint. MCP server, no LLM needed.

Model Context Protocol (MCP) server for LightRAG - 30 fully working tools with complete RAG and Knowledge Graph integration

MCP server for persistent document storage with full-text search