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Free MCP servers and Claude skills

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

309 products

3D web experienceDevelopment · Skill3D web experienceBuild or debug 3D web scenes with Three.js, React Three Fiber or Spline.No reviewsFreeA4A agent messagingDevelopment · SkillA4A agent messagingConnect your AI agent to the A4A encrypted agent-to-agent messaging network.No reviewsFreeAAS compose stackDevelopment · SkillAAS compose stackSave the agent's chosen AAS skills as a validated stack.No reviewsFreeADR reviewDevelopment · SkillADR reviewCheck code changes against your accepted Architecture Decision Records.No reviewsFreeAI Agents API LibraryDevelopment · MCPAI Agents API LibraryFind APIs and MCP servers for AI agents: auth, free tier, MCP endpoint, docs, last-checked date.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 reviewsFreeAIHOT screenshot 1Development · MCPAIHOTChinese-language AI news: search topics, explore hot events and read daily, weekly and monthly briefs.No reviewsFreeAccessibility testingDevelopment · SkillAccessibility testingSet up repeatable automated accessibility checks in components and CI.No reviewsFreeAgent-Native Chat screenshot 1Development · MCPAgent-Native ChatMinimal chat-first app with durable threads, actions and the app-agent loop.No reviewsFreeAgentDealsDevelopment · MCPAgentDealsMCP server aggregating developer infrastructure deals, free tiers, and startup programsNo reviewsFreeAgentPhoneDevelopment · MCPAgentPhoneGive AI agents real phone numbers, messages, and voice calls via MCP.No reviewsFreeAgentRQDevelopment · MCPAgentRQTask manager for AI agents. Orchestrate agents to achieve large goals in unified control plane.No reviewsFreeAgoragentic Agent OS MCP screenshot 1Development · MCPAgoragentic Agent OS MCPTriptych OS (Agent OS) MCP for governed routing, receipts, and USDC settlement on Base.No reviewsFreeAldine screenshot 1Development · MCPAldineSelf-hosted collaborative LaTeX editor: read and edit files, typeset, get the errors and the PDF.No reviewsFreeAlgorithmic artDevelopment · SkillAlgorithmic artCreate generative art in p5.js with seeded randomness and interactive parameters.No reviewsFreeArcmira: YouTube Transcript SearchDevelopment · MCPArcmira: YouTube Transcript SearchSearch YouTube transcripts for timestamps, speaker appearances, sponsors and recommendations.No reviewsFreeAtomic MailDevelopment · MCPAtomic MailProgrammable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.No reviewsFreeAxint screenshot 1Development · MCPAxintProof and repair for Apple coding agents: validate Swift, run Xcode evidence, and repair failures.No reviewsFreeAzure DevOps (ADO)Development · MCPAzure DevOps (ADO)The MCP server for Azure DevOps, bringing the power of Azure DevOps directly to your agents.No reviewsFreeBabysitDevelopment · SkillBabysitWatch a pull request until it is ready to merge: comments, reviews and CI.No reviewsFreeBackend patternsDevelopment · SkillBackend patternsBackend architecture patterns for Node.js, Express and Next.js API routes (Spanish).No reviewsFreeBilig WorkPaper screenshot 1Development · MCPBilig WorkPaperFormula-backed WorkPaper tools for workbook readback, input edits, and JSON persistence.No reviewsFreeBitbybit CAD MCP screenshot 1Development · MCPBitbybit CAD MCPBitbybit 3D parametric CAD API, version-exact, for coding agents: search, describe, examples, guideNo reviewsFreeBitriseDevelopment · MCPBitriseSet up & manage mobile CI/CD on Bitrise: build, test, distribute iOS, Android, Flutter, RN apps.No reviewsFree

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