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Free MCP servers (connectors) and skills for Claude and Claude Code.

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SmartBear MCPProductivity · MCPSmartBear MCPMCP server for AI access to SmartBear tools, including BugSnag, Reflect, Swagger, PactFlow, QTM4J.No reviewsFreePubMedDevelopment · MCPPubMedSearch PubMed/Europe PMC, fetch articles and full text (PMC/EPMC/Unpaywall), citations, MeSH terms.No reviewsFreeeCFR screenshot 1Development · MCPeCFRElectronic Code of Federal Regulations including FAR, DFARS, and agency supplements. 13 tools.No reviewsFreeSearch1APIDevelopment · MCPSearch1APIWeb search, agentic search, news, page retrieval, sitemaps, and trending topics through Search1API.No reviewsFreeContext7 screenshot 1Development · MCPContext7Up-to-date documentation for code libraries, handed to Claude at the right moment.No reviewsFreeNibomo Flashcards screenshot 1Studies · MCPNibomo FlashcardsRead, write, and conversationally review open-source flashcards through split read/write MCP tools.No reviewsFreeAI Game Developer: MCP for Unity, Unreal and Godot screenshot 1Development · MCPAI Game Developer: MCP for Unity, Unreal and GodotMake games with AI: one MCP server that connects your agent to Unity, Unreal and Godot editors.No reviewsFreeINITE Brain screenshot 1Development · MCPINITE BrainLong-term memory for AI agents: a bitemporal knowledge graph with cited answers.No reviewsFreeBuildBetterDevelopment · MCPBuildBetterResearch customer feedback, calls, support, surveys and product usage with source citations.No reviewsFreeLacuna Research MCPDevelopment · MCPLacuna Research MCPSearch Lacuna's ML research graph for papers, directions, authors, venues, and hypotheses.No reviewsFreePorkbun (official)Development · MCPPorkbun (official)Official Porkbun MCP server: domains, DNS, SSL, hosting and Cloudflare via the Porkbun API.No reviewsFreeSpeedPainter Explainer Video screenshot 1Design and images · MCPSpeedPainter Explainer VideoTurn text, notes, or documents into narrated hand-drawn whiteboard explainer videos with subtitles.No reviewsFreeNorman Finance — AI Bookkeeping, Accounting & Taxes screenshot 1Finance · MCPNorman Finance — AI Bookkeeping, Accounting & TaxesBookkeeping, invoices and tax workflows for European businesses, including Polish KPiR and JPK.No reviewsFreePollinations screenshot 1Development · MCPPollinationsAccess Pollinations models and API capabilities through agent tools.No reviewsFreeBonderyMarketing · MCPBonderyOpen-source personal CRM for building better bondsNo reviewsFreeChurnkeyFinance · MCPChurnkeyRead and manage Churnkey cancel flows, retention metrics, and payment recoveryNo reviewsFreeDocsMintDevelopment · MCPDocsMintCloud or self-hosted knowledge for AI agents: hybrid search, reranking, GraphRAG, scoped MCP tools.No reviewsFreeNutrition MCP screenshot 1Development · MCPNutrition MCPNutrition tracking: log meals and macros, USDA and Open Food Facts lookups, history, app import.No reviewsFreedraw.io screenshot 1Design and images · MCPdraw.ioCreate draw.io diagrams in the conversation, from Mermaid or XML.No reviewsFree3D New Era AI screenshot 1Design and images · MCP3D New Era AIDesign homes with your AI: floor plans, furniture, joinery, lighting and photos, live.No reviewsFreeLotus WisdomDevelopment · MCPLotus WisdomContemplative reasoning with Lotus Sutra wisdom framework and ext-apps visualization.No reviewsFreeNeuronto ARD Registry: Agentic Resource Discovery (ARD) IndexProductivity · MCPNeuronto ARD Registry: Agentic Resource Discovery (ARD) IndexAgent Resource Discovery (ARD, IETF draft) registry: search every ARD registry + verified MCP toolsNo reviewsFreeGrafanaDevelopment · MCPGrafanaGrafana dashboards, metrics and logs, viewed from Claude.No reviewsFreeChatroost — unofficial Telegram MCP server screenshot 1Development · MCPChatroost — unofficial Telegram MCP serverUnofficial Telegram MCP server — read, search, reply and react in your own Telegram account.No reviewsFree

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