RAG and search: tools for developers
Retrieval-augmented tools, vector databases, embeddings and semantic search. An entry can appear under several use cases when its topics or description provide several explicit signals.
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146 entries in this view.
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Ranked by measured growth, normalized across sources. Raw values keep their source-specific window, shown under each tool; a change requires at least two snapshots from the last 7 days.
- 1Active
x402 pay-per-use IBM Granite AI: chat, code, embeddings, analysis, forecasting. Pay USDC per call.
mcpmeasured growthOpen source ↗
Install
claude mcp add ibm-x402-mcp -- npx @three-ws/ibm-x402-mcp105GitHub starsstable - 2Active
Local-first persistent memory for AI agents — SQLite + local embeddings, MCP-native, no cloud.
mcpmeasured growthOpen source ↗
Install
claude mcp add engram -- npx @hbarefoot/engram7GitHub starsstable - 3Dormant
Curated knowledge for AI agents — 19K chunks, 121 skills, semantic search via MCP
mcpmeasured growthOpen source ↗
Install
claude mcp add midos -- uvx midos-mcp8GitHub starsstable - 4Dormant
Curated knowledge API for AI agents - skill packs, semantic search, validated patterns.
mcpmeasured growthOpen source ↗
Install
claude mcp add midos-mcp -- uvx midos-mcp8GitHub starsstable - 5Active
{GIN} verdict, M-Value AVM, market facts + semantic search for Moroccan real estate. Moat-safe.
mcpmeasured growthOpen source ↗
Install
claude mcp add marocain-mcp-server -- npx @marocain/mcp-server1GitHub starsstable - 6Active
Obsidian MCP server: semantic search, knowledge graph, and vault editing. No plugin required.
mcpmeasured growthOpen source ↗
Install
claude mcp add obsidian-brain -- npx obsidian-brain10GitHub starsstable - 7Active
Local Memory
MCPPersistent local AI memory. SQLite + FTS5 + vector search, knowledge graph. No cloud, no API keys.
mcpmeasured growthOpen source ↗
Install
claude mcp add local-memory-mcp -- npx @studiomeyer/local-memory-mcp11GitHub starsstable - 8Active
Code intelligence MCP server — impact analysis, semantic search, dependency graphs
mcpmeasured growthOpen source ↗
Install
claude mcp add flyto-indexer -- uvx flyto-indexer4GitHub starsstable - 9Active
Historical chart-pattern intelligence for AI agents. 25M+ embeddings, 19K+ symbols, 10y history.
mcpmeasured growthOpen source ↗
Install
claude mcp add chart-library -- uvx chartlibrary-mcp20GitHub starsstable - 10UnknownLast commit: unavailable
Persistent memory and knowledge management for AI agents with semantic search and 50+ tools.
mcpmeasured growthOpen source ↗
Install
claude mcp add agentbay-mcp -- npx aiagentsbay-mcp52downloads over 7 daysstable - 11Active
High-performance knowledge graph MCP server for AI coding agents with semantic search.
mcpmeasured growthOpen source ↗
Install
claude mcp add lain -- npx @spuentesp/lain-mcp6GitHub starsstable - 12Active
Local-first second brain with semantic search. Markdown notes indexed by a local ML model.
mcpmeasured growthOpen source ↗
Install
claude mcp add memex -- npx @evan-moon/memex3GitHub starsstable - 13Active
Semantic search over IMAGIN.studio API documentation — CDN, API, integration guides, and more.
mcpmeasured growthOpen source ↗
Install
claude mcp add api-docs-mcp -- uvx imagin-studio-api-docs-mcp1GitHub starsstable - 14Dormant
Embgrep
MCPLocal semantic search — embedding-powered grep for files, zero external services.
mcpmeasured growthOpen source ↗
Install
claude mcp add embgrep -- uvx embgrep0GitHub starsstable - 15Dormant
30 GPU-powered AI services as MCP tools. LLM, image, video, audio, embeddings & more.
mcpmeasured growthOpen source ↗
Install
claude mcp add gpu-bridge -- npx @gpu-bridge/mcp-server2GitHub starsstable - 16Dormant
MCP server for Obsidian Smart Connections. Semantic search using your vault's embeddings.
mcpmeasured growthOpen source ↗
Install
claude mcp add smart-connections -- npx @gogogadgetbytes/smart-connections-mcp3GitHub starsstable - 17Dormant
gigachat-mcp
MCPMCP server for GigaChat — AI chat, embeddings, image generation (Russia)
mcpmeasured growthOpen source ↗
Install
claude mcp add gigachat-mcp -- npx @theyahia/gigachat-mcp0GitHub starsstable - 18Active
BM25 search + tree navigation over markdown docs for AI agents. No embeddings, no LLM calls.
mcpmeasured growthOpen source ↗
Install
claude mcp add doctree-mcp -- npx doctree-mcp1GitHub starsstable - 19UnknownLast commit: unavailable
Context Lens
MCPSemantic search knowledge base with serverless LanceDB. Zero setup, 100% local, 25+ file types
mcpmeasured growthOpen source ↗
Install
claude mcp add context-lens -- uvx context-lens31downloads over 7 daysstable - 20UnknownLast commit: unavailable
Search 529K US statute sections. 50 states + USC + CFR. Semantic search, citation graph, MCP.
mcpmeasured growthOpen source ↗
Install
claude mcp add america-law-graph -- npx america-law-graph30downloads over 7 daysstable - 21Active
Distillery
MCPKnowledge base for Claude Code with semantic search, feed intelligence, and teams
mcpmeasured growthOpen source ↗
Install
claude mcp add distillery-mcp -- uvx distillery-mcp24GitHub starsstable - 22UnknownLast commit: unavailable
Build searchable AI research knowledge bases with hybrid vector search directly in Claude Desktop.
mcpmeasured growthOpen source ↗
Install
claude mcp add coderswap-mcp-server -- npx @coderswap/mcp-server27downloads over 7 daysstable - 23UnknownLast commit: unavailable
Semantic search and knowledge graph for your Wall notes from Claude Code and MCP clients.
mcpmeasured growthOpen source ↗
Install
claude mcp add xentropy-notes -- npx @xentropy/mcp25downloads over 7 daysstable - 24Active
Turn any OpenAPI spec into an executable agent interface using graphs and semantic search.
mcpmeasured growthOpen source ↗
Install
claude mcp add jitapi -- uvx jitapi7GitHub starsstable - 25Dormant
31 MCP tools for ESG data extraction, PDF processing, vector search, and EU regulation analysis.
mcpmeasured growthOpen source ↗
Install
claude mcp add esg-mcp-servers -- uvx esg-mcp-servers0GitHub starsstable