RAG & Vector Search MCP Servers

Persistent memory for AI coding agents. Local-first SQLite + vector search. 17 MCP tools.

Semantic search across 6,236 Quran verses and 12,416 authentic Hadiths for Islamic guidance.

Repository intelligence, code graph, history, papertrail, and cross-agent memory for coding agents.

Graph-powered code intelligence with semantic search and knowledge graph for AI assistants

Developer journal with knowledge graphs, relationships, Git context, and semantic search

Scaffold is a Retrieval-Augmented Generation (RAG) system designed to structural understanding of large codebases. It transforms your…

Local repo context for coding assistants with semantic search and graph relationships.

Cross-session memory for AI agents - knowledge graph, scoring, semantic search

Local workspace memory for Claude Desktop. Indexes your documents (Markdown, CSV, session logs) into a vector store with hybrid search,…

Full-text Asian financial reports (China, Korea, Japan, Taiwan) as clean Markdown for RAG agents.

Calibre ebook library server: search, read content, curate metadata, semantic search, gated writes.

Generate QA datasets & evaluate RAG systems with failure diagnosis. Any LLM.

Graph context, semantic search, guarded edits, and reviewable Git for local Obsidian vaults.

Persistent memory for AI assistants with semantic search and knowledge graph relationships.

Semantic search and RAG over Apple Notes with on-device embeddings, full CRUD, folder management, and fuzzy title matching. 10 tools. Runs…

Markdown-first long-term memory for AI agents. Hybrid BM25 + vector search, runs locally.

Sourcegraph code search, semantic search, go-to-definition, find-references, and diff search.

Persistent local AI memory. SQLite + FTS5 + vector search, knowledge graph. No cloud, no API keys.

Deterministic knowledge graph MCP server. Single binary, zero LLM/embedding calls in the bridge, BLAKE3 state hashing, canonical KREX…

Semantic code & doc search with keyword boost. AST code nav, auto HF mirror, local, privacy-first.

MCP server over your Claude Code transcript history — full-text + semantic search, byte-identical thread recall, durable /remember facts.…

Remote ChromaDB vector database MCP server with streamable HTTP transport

Protected RAG storage — agents discover public metadata, content only by access token.

Compress prompts 40-60% using local LLM + embedding validation. Preserves all conditionals.

Lightning-fast RAG for AI agents. 4-layer fusion, ONNX Runtime, sub-200ms search.

Local read-only semantic search for Markdown vaults through MCP.

Obsidian MCP server: semantic search, knowledge graph, and vault editing. No plugin required.

Python Streamable HTTP Server you can run locally to interact with [memvid](https://github.com/Olow304/memvid) storage and semantic search.

Semantic search over Polish law and case law, citing the exact in-force article.

Two-tier memory: hot cache (0ms) + semantic search. Self-organizing.

Convert .eml email exports to clean Markdown for RAG, LLM pipelines, and local knowledge bases

Local-first persistent memory for AI agents — SQLite + local embeddings, MCP-native, no cloud.

Semantic search across Claude Code conversations. Hybrid vector + keyword search with Reciprocal Rank Fusion, fully local, background…

Intelligent learning sidecar for AI coding assistants. Helps developers learn from AI-generated code changes through interactive blocking…

Apple Notes MCP with semantic search, hybrid vector+keyword search, full CRUD operations, and incremental indexing. Uses JXA for native…

Three-layer memory system for agents (identity/active/archive) with semantic search, graph relationships, conflict detection, and…

AI project intelligence MCP server. Tracks 300+ open-source AI projects across GitHub, PyPI, npm, HuggingFace, Docker Hub, and Hacker…

Turn any OpenAPI spec into an executable agent interface using graphs and semantic search.

Durable hybrid memory for AI agents. Combines vector search, BM25, temporal retrieval, and optional Memgraph knowledge graph via…

Official Dodo Payments MCP servers — `dodopayments-api` for live payments, subscriptions, customers, products, refunds, license keys, and…

Zero-config session continuity for Claude Code, OpenAI Codex CLI & Google Gemini CLI, sharing one local db. Auto context injection on…

VikingDB integration with collection and index introduction, vector store and search capabilities.

IT Glue MCP server for MSPs — documents, flexible assets, semantic vector search, RBAC, and BYOK

Persistent, shared memory for AI agents — facts, checkpoints, semantic search.

An MCP server for accessing all of CustomGPT.ai's anti-hallucination RAG-as-a-service API endpoints.

Persistent memory for AI coding assistants. Local SQLite, no cloud. 16 MCP tools: store, recall, search, relate, consolidate, export, and…

Extracts clean web content for RAG and provides Q&A about web pages.

Rip YouTube transcripts to disk for AI agents, RAG pipelines, and LLM workflows.

Academic paper knowledge-base MCP server: PDF ingest, vector search with reranking, KB management.

Local-first developer activity aggregator. Indexes commits, PRs, Jira/Linear tickets, Confluence docs, Slack threads, and Calendar events…

Crawl websites into clean Markdown, search pages, and extract structured data with LLMs. Built-in MCP server for web research and RAG…

Structural code context server for AI agents — compressed symbol indexes, dependency graphs, and git diffs via TypeScript AST analysis.…

Local-first MCP server: semantic search over library docs. No cloud, no API key, no telemetry.

Free open-source web search and page reading for LLMs, AI agents, and RAG.

Local-first agent memory & knowledge service with hybrid retrieval (BGE-M3 dense vectors + BM25 via jieba, fused with RRF), document &…

Add RAG-powered AI chat to any website with one command. Local vector store, multi-provider LLM (OpenAI/Anthropic/Gemini), self-contained…

30 GPU-powered AI services as MCP tools. LLM, image, video, audio, embeddings & more.

Local-first persistent memory for AI coding agents. Captures facts, decisions, patterns, and architecture notes in SQLite (with optional…

MCP RAG: index PDFs, repos, YouTube, Discord, text; optional YouTube vision; query with citations.

Personal knowledge graph for Claude on Neo4j. Typed entities (Person/Project/Decision/Preference/Concept), bi-temporal edge validity…