RAG Systems
Tools and platforms for Retrieval-Augmented Generation (RAG), integrating external data sources with language models. Enables context retrieval, relevant document fetching, hybrid search, and dynamic knowledge injection into AI/LLM workflows.
MCP ServersBrowse all →
AlicenseAqualityAmaintenanceOn-premises knowledge retrieval over the Markdown, text, PDF, Word and Excel files an organization keeps, with the rules you set enforced before anything is retrieved. Agents connect over MCP, get cited passages, and read from it and never write to it.221AGPL 3.0
Docling-rs MCPofficial
AlicenseAqualityAmaintenanceIt converts documents to Markdown or docling JSON for AI agents. That covers PDFs with layout analysis, table structure and OCR, plus DOCX, PPTX, XLSX, HTML, EPUB, e-mail, images and audio. It serves MarkItDown's "convert_to_markdown" tool under the same name and contract, along with "convert" and "list_input_formats".183113MIT- AlicenseAqualityAmaintenanceLocal-first operator MCP server: recall across your own sessions, chats and files, an encrypted vault, SSH to your own hosts, and gated shell, browser and device tools. 130 tools over stdio or HTTP; everything runs on your machine — no hosted service, no account, no API key.2815672 PyPI5Apache 2.0
- AlicenseAqualityDmaintenanceMCP server for Supabase instances running on Aliyun RDS, enabling AI assistants to interact with your Supabase instance hosted on Aliyun cloud infrastructure.2722 npm3MIT

zettaquant-vslm-mcpofficial
AlicenseAqualityBmaintenanceEnables any MCP-aware LLM host to filter noisy text down to query-relevant sentences via a topic-conditioned relevancy classifier, reducing token spend before the model processes the full input.1MIT- AlicenseAqualityAmaintenanceTurnbook records every conversation you have with your AI agents, word for word, in a store on your own PC. When a question depends on the past, the model you are using calls Turnbook over MCP and gets back a few thousand tokens of the conversations that answer it.476AGPL 3.0

Agentoom Knowledgeofficial
AlicenseAqualityCmaintenanceA self-hosted, MIT-licensed MCP server that securely connects private documents and markdown files to LLMs. It provides a lightweight, local-first RAG infrastructure compatible with any MCP-enabled AI client or framework.35MIT
Remnant Readofficial
AlicenseAqualityAmaintenanceSearch reusable technical experience from AI agents, inspect evidence and limitations, and discover public agent Trust Passports through seven anonymous read-only MCP tools. Apache-2.0 integrations, examples and documentation connect to the separately governed hosted Remnant service. Agent OAuth and Candy are separate surfaces.7Apache 2.0
Oxylabs MCP Serverofficial
AlicenseBqualityBmaintenanceA scraper tool that leverages the Oxylabs Web Scraper API to fetch and process web content with flexible options for parsing and rendering pages, enabling efficient content extraction from complex websites.1017,334 PyPI104MIT
Redis Cloud API MCP Serverofficial
AlicenseAqualityFmaintenanceThe Redis Cloud API MCP Server provides an MCP Server for Redis Cloud's API, allowing you to manage your Redis Cloud resources using natural language.1613 npm43MIT- AlicenseAqualityDmaintenanceAdds persistent memory to AI assistants by connecting to the Memphora cloud platform, allowing them to store and recall facts across conversations. It enables tools for searching memories, extracting insights, and maintaining long-term user context and preferences.526 PyPI3MIT
- AlicenseAqualityCmaintenanceProvides MCP tools for web scraping, including smart fetching, proxy rotation, and browser rendering to bypass anti-bot challenges and render JavaScript-heavy sites.455 npm7MIT
- AlicenseAqualityCmaintenanceLocal-first memory for coding agents. Discovers the memory, instructions, and rules Claude Code, Codex, and Cursor already wrote on your machine, combines them into one canonical Markdown tree, and serves grounded, cited recall through tools like ask_memory and canonical_memory.20236 PyPI133MIT
- AlicenseAqualityBmaintenanceOfficial MCP server connecting hosts to a June knowledge graph for agent memory, search, and cited answers.10139 PyPI1MIT

cairnofficial
AlicenseAqualityBmaintenanceEnables AI assistants to read and write a local-first SQLite memory vault from inside a chat — orienting on inherited context, searching and fetching past decisions and notes, wandering linked memories, and recording new ones on demand. All data stays on the user's machine, shared across local and cloud tools via MCP.823 PyPI5Business Source 1.1
spirrow-prismindofficial
AlicenseBqualityBmaintenanceMCP server that integrates Google Drive, RAG, and memory services for context-aware knowledge management, enabling session, project, document, catalog, and knowledge operations for AI assistants.46MIT
Kagi MCP Serverofficial
AlicenseAqualityCmaintenanceAn MCP server that integrates Kagi search capabilities with Claude AI, enabling Claude to perform real-time web searches when answering questions that require up-to-date information.2550MIT
Redis MCP Serverofficial
AlicenseBqualityBmaintenanceThe official Redis MCP Server is a natural language interface designed for agentic applications to efficiently manage and search data in Redis.533,770 PyPI641MIT
graphite-mcpofficial
AlicenseAqualityCmaintenanceMCP server for the Graphite Financial Knowledge Graph, enabling natural language queries about companies, supply chains, executives, regulations, and patents via MCP-compatible clients.7MIT
solucortex-mcpofficial
AlicenseAqualityAmaintenanceEnables MCP-compatible AI agents to connect to SoluCortex projects, recall relevant technical decisions, conventions, risks, and architecture before working, and record new memories afterward.430 PyPIMIT- AlicenseAqualityBmaintenanceOfficial Telys MCP server: private, on-device AI memory and retrieval powered by native Mojo kernels. 19 tools: memory CRUD, semantic + BM25 search, single-key filters, compaction/IVF/tuning and self-refreshing repo auto-indexing. Stdio. Introspection needs no credentials; execution requires a one-time free telys login. Source: packages/telys-sdk/telys/mcp.py. Registry: io.github.thyn-ai/telys.19Apache 2.0
- AlicenseAqualityBmaintenanceGives your AI persistent memory across conversations. Stores facts automatically, finds them by meaning using hybrid search with query expansion, and organizes everything into topics without manual tagging.181MIT

Keenable MCP Serverofficial
AlicenseAqualityBmaintenanceAn MCP server that enables web search and page content retrieval via the Keenable API, supporting search with filters and fetching clean markdown content from indexed URLs.2374 npmMIT
Leeroopedia MCP Serverofficial
AlicenseAqualityAmaintenanceMCP server that turns AI coding agents into ML/AI experts by providing best-practice knowledge for fine-tuning, inference optimization, agent building, and more.814MIT
mcp-reposkeinofficial
AlicenseAqualityAmaintenanceDeterministic code-graph (GraphRAG) over your repo for LLM agents — local-first, git-native, zero-infra, served via MCP. Python, TS/JS, Rust, Go, Java, C#.812Apache 2.0- AlicenseAqualityAmaintenanceSelf-hosted knowledge base that gives AI agents persistent memory over MCP. 18 tools covering notes, folders, tags and trash; hybrid search combining pgvector embeddings with bilingual full-text ranking via RRF; [[wikilink]] graph traversal and backlinks; document import from PDF, DOCX and EPUB. Connects over Streamable HTTP or stdio, with Bearer-token or OAuth auth.24186AGPL 3.0

Phygital Engramofficial
AlicenseAqualityAmaintenanceA fast, private, read-only search for your second brain or any folder of Markdown notes. Your AI agent finds the right note and the exact line, with the note, heading and date as the source.4Apache 2.0
byteask-embedded-docsofficial
AlicenseAqualityDmaintenanceAn MCP server for source-grounded, page-cited evidence retrieval tailored for embedded and firmware development, returning verbatim snippets with exact citations or 'no match' to prevent fabrications.326MIT
never4ga-mcpofficial
AlicenseAqualityAmaintenanceEnables AI agents and MCP clients to start each session with a pre-assembled context pack of the project's Markdown notes, decisions, rules, Git and tracker state, and to write progress and decisions back as dated logs. Context is gathered locally by lookups and queries rather than model calls, so different tools like Claude Code, Codex, and Antigravity share the same memory without spending tokens on retrieval.151Apache 2.0
dryad-rag-mcpofficial
AlicenseAqualityDmaintenanceExposes a RAG document-search API as MCP tools (rag_health, rag_ingest, rag_query), enabling agents to index and search markdown documents with cited results through natural language.3MIT
MCP ConnectorsBrowse all →
Enhanciar is an AI company brain for every team. It reads your Slack, Gmail, Google Drive, Notion, Confluence, Jira, Linear, Zendesk, GitHub code and databases, writes a wiki from them, and answers questions from any MCP client with a link to the source. Tools: query (cited answers), search_wiki, get_page, list_pages, get_graph, get_process_map, impact (what a code change touches), list_repos, list_skills, get_skill, propose_action and list_proposed_actions (tickets, Slack messages, Gmail drafts, Notion pages and calendar holds that a person approves first). Hosted service, bring your own AI key. Plans: Solo $24 a month, Team $100 a month for up to 10 people. Create an API key in Settings at https://enhanciar.in.
ESG knowledge base for AI agents: hybrid search, glossary, frameworks, industries, graph traversal.
Engram is a persistent, long-term memory layer for AI agents and assistants. Claude, ChatGPT, Grok, Cursor and any MCP client share one memory, stored as plain markdown notes: your knowledge base, second brain and AI context in one place. No extraction step: the memory is the note itself, so you can read exactly what your AI remembers and fix it. Edit your memory in Obsidian (real-time sync), the web app, or on your phone. Hybrid keyword + semantic search (RAG over your notes) finds exact strings like error messages, config keys and IDs. Remote MCP server over Streamable HTTP with OAuth 2.1; notes encrypted at rest. Https://engram.page https://youtu.be/rwnPeZ-8Lqo?is=NI-N7BduydGAiZlF https://github.com/engram-app/Engram
Find explanations and worked examples in Ithy’s public article library, from SSD capacity to USB-C cables. Search titles and descriptions, then read relevant passages with source links and dates. No account or API key. Read-only; no new research or private data access. Articles are AI-assisted secondary sources—check important claims against original references. https://ithy.com/connect
Cloud or self-hosted knowledge for AI agents: hybrid search, reranking, GraphRAG, scoped MCP tools.
The only News based AI MCP your agents will ever need — custom categories, global regions, and time-scoped results in one tool. We use multi-vector & sparse-hybrid search to search through thousands of articles across the world to find the exact news you're looking for.
Deterministic AI agent microtools, no accounts/API keys. fetch_extract: 98% token cut. 47 tools.
Taiwan legal research MCP by Dr.Legal (法律偵探): 22.7M court judgments, current statutes, administrative rulings and Constitutional Court decisions. Retrieval-only, per-item citations, appeal-chain history, bundle-level citation audit. Free, no API key; OAuth 2.0 dynamic registration completes automatically. 台灣法律 MCP:2,272 萬筆裁判書、法規、函釋、憲法法庭裁判,逐筆附出處並提供引用查核。免費、免金鑰。Docs: https://dr-legal.com.tw/mcp
Serverless hybrid search: full-text, vector and faceted search, in SQL, ES DSL, Solr and more.
A second brain for your AI agent. Shared memory for your team's AI agents, plus public and private knowledge bases — works with ChatGPT, Claude, Cursor and any MCP client.
Cited web evidence and fact checking for AI agents. $0.01 per call, no API key.
Cited answers in Claude or ChatGPT only from your office's procedures; says so when not covered.
Execute multi-step A2A & MCP agent workflows with atomic x402/MPP settlement.
Machine-exclusive web distillation MCP server for AI agents. Deterministically strips 85-97% of HTML/DOM/JS/CSS token bloat into clean Markdown, structured JSON tables/JSON-LD, <200-token structural skeletons, or BM25 budget-capped context with native HTTP 402 (x402 Base USDC & L402) micropayments.
Strips 85-97% of HTML/DOM boilerplate into clean Markdown, skeletons, or BM25-ranked RAG chunks.
Manage your Mistral platform — models, files, batch jobs, agents and RAG document libraries.
Cited news for AI agents from AI companies, VC firms, private companies and business podcasts.
Ask questions about Claude Code, Cursor, Codex and MCP — get answers grounded in their official docs, with citations. A hybrid RAG service that AI agents call through two MCP tools (or over REST). It indexes ~600 pages of official documentation, refreshes itself daily, and every design choice is backed by an experiment.
Verify a company, figure or citation before you rely on it. Card or crypto; signed receipt.
Verified Texas business records for AI agents: entities, licenses, openings and enforcement history.