123 of these 126 tools are free or have a free tier. Sub-categories: General Autonomous Agents, Workflow Automation, Agent Frameworks (Developers), Real-Time Voice Agents, Browser & Computer-Use Agents, MCP Ecosystem, Agent Memory & RAG-as-a-Service. Open AI Agents & Automation in the app.
ManusFreemium Fully autonomous agent in a cloud sandbox · Breaks goals into steps and executes them · Web research, code execution and file output · 'My Computer' desktop environment https://manus.im/ · alternatives
ChatGPT AgentPaid Operates its own virtual computer in the cloud · Browses, books, fills forms and codes · Connectors to apps and files · Bundled with paid ChatGPT plans https://chatgpt.com/ · alternatives
Claude CoworkPaid Runs in the Claude desktop app (Mac/Windows) · Works with your local files and folders · Coordinates sub-agents for parallel work · Best for document-heavy autonomous tasks https://claude.com/ · alternatives
Perplexity CometFreemium AI-native browser with a built-in agent · Automates browsing, research and tasks · Routes subtasks to the best model · Cited answers as you browse https://www.perplexity.ai/comet · alternatives
GensparkFreemium 'Super agent' that plans and executes end-to-end · Generates sheets, slides and even phone calls · Mixes multiple models and tools · Free daily credits https://www.genspark.ai/ · alternatives
Zhipu AutoGLMFree Free foundation-agent system for autonomous GUI control (web + Android) · Voice-to-action: controls entire web/phone UI from a spoken instruction · AutoGLM Rumination adds deep-research style multi-step task execution https://autoglm.zhipuai.cn/ · alternatives
Coze SpaceFreemium ByteDance's general-purpose office agent that breaks tasks into sub-tasks and drives a browser/code editor autonomously · Outputs deliverables as web pages, PPTs or Lark docs · Part of the Coze suite (Space/Studio/Loop/Eino) with an open-source Coze Studio component https://www.coze.com/space · alternatives
MiniMax AgentFreemium General-purpose autonomous agent from MiniMax, separate from its Hailuo video product · Built on MiniMax's M3-series multimodal agentic models · Free daily credits; paid credit plans for heavier use https://agent.minimax.io/ · alternatives
FlowithFreemium Infinite-canvas workspace where every prompt/output is a branchable, reusable node · Agent Neo: autonomous agent that runs long tasks in the background 24/7 · Free Starter plan with one-time credits granting access to frontier models (Opus, GPT, Gemini) and Agent Neo https://www.flowith.io/ · alternatives
Convergence ProxyFreemium Free daily session quota; Pro lifts it to unlimited and adds parallel runs · Open-weights Proxy Lite version available on GitHub for self-hosting · Learns and adapts to user preferences across repeated web-automation tasks https://proxy.convergence.ai/ · alternatives
Skywork AIFreemium Five specialized agents for docs, sheets, slides, podcasts and web content in one workspace · DeepResearch-powered output generation across formats · Free tier available alongside paid workspace plans https://www.skywork.ai/ · alternatives
Ninja AI (NinjaTech)Freemium SuperNinja: autonomous agent running on its own dedicated VM for coding, research, website building · Bundles multiple frontier models behind one subscription with 'Inference Level Optimization' · Single agent spans coding, document analysis, and content generation tasks https://www.myninja.ai/ · alternatives
HyperWrite AI AgentFreemium Browser-native personal agent that books, emails, and researches inside your existing tabs · Free tier confirmed live plus paid upgrade for higher-volume agent tasks · Long-running writing-assistant product line (from OthersideAI) now extended into full agentic tasks https://www.hyperwriteai.com/ · alternatives
DeerFlow (ByteDance)Free Open-source long-horizon SuperAgent harness that researches, codes and creates · Sub-agents, sandboxed execution, memory and skills · Model-agnostic; works with DeepSeek, OpenAI-compatible APIs · MIT-licensed, self-hosted https://github.com/bytedance/deer-flow · alternatives
OpenClawFree MIT-licensed personal AI agent running on your own hardware with a local gateway · Connects to 20+ chat platforms including WhatsApp, Telegram, Slack and iMessage · Swap in hosted or local models via plugins; no paid tier or token https://openclaw.ai/ · alternatives
Hermes AgentFree MIT self-improving agent by Nous Research that writes skills from experience · Terminal UI plus Telegram, Discord, Slack and WhatsApp gateways · Built-in scheduler, sub-agents and memory; runs on a cheap VPS https://github.com/NousResearch/hermes-agent · alternatives
Kortix (Suna)Free Open-source agent platform (formerly Suna) that runs specialist agents on isolated cloud computers · Agents produce finished deliverables such as reports and code and return them for human approval · Free to self-host; managed cloud is paid · Works with your own LLM provider keys https://kortix.com/ · alternatives
OpenManusFree Open-source general agent framework built as a free alternative to Manus · Runs tasks with tools such as browser automation, code execution and file handling · Works with any LLM API you supply, including local models · MIT-style open code you can run locally at no cost https://github.com/FoundationAgents/OpenManus · alternatives
AgenticSeekFree Fully local autonomous agent that browses, codes and plans without cloud APIs · Runs on local LLMs via Ollama or LM Studio, so there are no usage fees · Voice-enabled task interface and multi-agent routing · Free and open source https://github.com/Fosowl/agenticSeek · alternatives
Agent ZeroFree Agent framework that gives the agent a full Linux desktop and browser to work in · Multi-agent delegation, plugins and skills, with over 100 community plugins · Project workspaces with isolated files, secrets and model choices · Free and open source; bring your own model keys or use local models https://agent-zero.ai/ · alternatives
Open InterpreterFree Lets an LLM run code locally to do tasks on your computer, in a terminal chat · Works with open models such as Kimi and GLM through any compatible API · Free and open source with no account needed · Large community and steady releases https://github.com/openinterpreter/openinterpreter · alternatives
NanobotFree Ultra-light self-hosted personal agent with memory, tools and cron scheduling · Chats through Telegram, Discord, Slack, WeChat, email and Feishu · MCP servers, web search, shell and file access · MIT licensed; bring your own model https://github.com/HKUDS/nanobot · alternatives
CowAgentFree Open-source agent that plans tasks, runs tools and builds long-term memory · Runs in WeChat, Feishu, DingTalk, WeCom, QQ, Telegram, Slack, Discord and a web console · Skills marketplace and a self-curated markdown knowledge base · MIT licensed, bring your own model key https://cowagent.ai/ · alternatives
AutoGPTFree Open-source platform for building and running continuous AI agents · Low-code builder for agent workflows · Self-host free · One of the most starred AI repos https://agpt.co/ · alternatives
ZapierFreemium Connect 8,000+ apps with AI agents · Natural-language automation builder · AI steps, chatbots and tables · Free tier for basic Zaps https://zapier.com/ai · alternatives
n8nFreemium Open-source, self-hostable automation · Visual AI-agent and LLM nodes · Full code when you need it · Free to run yourself https://n8n.io/ · alternatives
LindyTrial Build AI 'employees' from plain English · Handles email, scheduling and CRM tasks · Trigger-based autonomous workflows · The free plan has ended; only paid plans with a short trial remain. https://www.lindy.ai/ · alternatives
GumloopFreemium No-code canvas for AI workflows · Web scraping, extraction and enrichment · Shareable automation templates · Free plan to start https://www.gumloop.com/ · alternatives
CozeFreemium No-code drag-and-drop bot/agent builder from ByteDance, distinct from Doubao's consumer chat app · 60+ built-in plugins (search, travel, productivity) wired into published bots · One-click publish to Telegram, Discord, Slack or your own site https://www.coze.com/ · alternatives
ActivepiecesFreemium MIT-licensed, free-forever self-hosted Community Edition with unlimited runs/users/flows · 700+ integrations plus AI-agent building blocks · Cloud Free plan needs no credit card, includes unlimited flows with daily credit resets https://www.activepieces.com/ · alternatives
WindmillFree Open-source, self-hostable with unlimited executions on the free tier · Turns scripts (Python/TS/Go/Bash/SQL) into flows and full internal apps · Kubernetes/Docker/Fargate deployable with a hybrid seat+compute enterprise pricing model https://www.windmill.dev/ · alternatives
PipedreamFreemium Free tier: 300 credits/month, 3 active workflows, 3 connected accounts, no card required · Mixes visual workflow building with full custom code steps (Node/Python) · 2,000+ pre-built API integrations with fast event-driven triggers https://pipedream.com/ · alternatives
DifyFreemium Open-source Community Edition, free self-deploy via Docker · Cloud Sandbox plan: free with 200 message credits, 5 apps, 50 knowledge docs · Visual builder combining agentic workflows with built-in RAG knowledge bases https://dify.ai/ · alternatives
LangflowFree Open source with 138k GitHub stars, free desktop app and free cloud account · Drag-and-drop visual builder for agents and RAG pipelines on top of LangChain primitives · Deep integrations across major LLMs, vector DBs and Google Cloud/Slack/MongoDB https://www.langflow.org/ · alternatives
VellumFreemium Free builder tier with hosted agent apps, no card required · Prompt-engineering playground for side-by-side multi-model comparison · Built-in evaluations framework with test banks and custom metrics for LLM apps https://www.vellum.ai/ · alternatives
Stack AIFreemium Free plan: 500 monthly runs, 2 projects, 1 seat, community Discord support · No-code drag-and-drop builder aimed at compliant/regulated enterprise deployments · SOC 2, HIPAA and GDPR compliance options at the enterprise tier https://www.stackai.com/ · alternatives
BotpressFreemium Free pay-as-you-go plan with a monthly message quota and AI credit · Visual conversation-flow studio purpose-built for LLM-powered support/sales bots · May 2026 pricing update added unlimited bots and free AI spend on new workspaces https://botpress.com/ · alternatives
ChatbaseFreemium Free plan: 50 message credits/month, 1 AI agent, 1 workspace member · Omnichannel deployment across chat, email, voice, WhatsApp and Slack from one trained agent · Serves 10,000+ businesses for customer-support agent deployment https://www.chatbase.co/ · alternatives
Trigger.devFreemium Open source (Apache 2.0) with a genuine free tier and unlimited tasks · Purpose-built for long-running, failure-resilient tasks (ideal for multi-step AI agent jobs) · No server/timeout management — infra fully handled, pay per compute-second https://trigger.dev/ · alternatives
VoiceflowFreemium Visual design canvas for building both voice and chat AI agents from one flow · Multi-client/agency workspace mode with white-labeling for agencies · Deployable across channels with real-time analytics and team collaboration https://www.voiceflow.com/ · alternatives
Google OpalFree Describe an app in plain language and Opal builds a shareable multi-step AI workflow · Agent step for autonomous multi-step workflows and automated runs · Chains prompts, Gemini/Veo/Imagen models and tools visually · Available in 160+ countries, also inside the Gemini app as Gems https://opal.google/ · alternatives
FlowiseFree Drag-and-drop builder for chatbots, agents and RAG flows · Self-host free with Docker or npm, with many model and vector store integrations · Agentflow for multi-agent orchestration · Embeddable chat widget and API output https://flowiseai.com/ · alternatives
SimFree Visual canvas for building, deploying and monitoring AI agents and workflows · Open source and self-hostable · Copilot that helps assemble workflows from natural language · Integrations with common tools and knowledge bases https://www.sim.ai/ · alternatives
LangBotFree Builds AI bots for WeChat, QQ, Discord, Slack, Telegram and other chat platforms · Plugs into Dify, n8n, Coze and other workflow back ends · Plugin system and web admin panel · Free and open source, self-hosted https://langbot.app/ · alternatives
Coze StudioFree Open-source version of ByteDance's Coze agent builder with visual workflows · Plugins, knowledge bases, databases and memory for agents · Apache 2.0 licensed, self-hosted with Docker · Connects to OpenAI and other model providers https://github.com/coze-dev/coze-studio · alternatives
BISHENGFree Open-source platform for building LLM workflows, RAG and multi-agent apps · Strong document parsing with OCR, tables and layout analysis · Loops, parallelism and human-in-the-loop steps · Apache 2.0, self-hosted https://github.com/dataelement/bisheng · alternatives
BardeenFreemium Chrome-based AI automation for scraping, filling forms and moving data between apps · Free plan includes a monthly credit allowance · Playbooks you can build in plain language · Integrates with Google Sheets, Notion and CRMs https://www.bardeen.ai/ · alternatives
LangGraphFree Build stateful, multi-agent apps as graphs · Human-in-the-loop and durable execution · Works with any LLM · Open-source with a hosted platform https://www.langchain.com/langgraph · alternatives
CrewAIFreemium Role-based multi-agent 'crews' · Simple Python API for collaboration · Tasks, tools and flows · Open-source core https://www.crewai.com/ · alternatives
OpenAI Agents SDKFree Lightweight agent orchestration from OpenAI · Agent handoffs, guardrails and tracing · Tool and function calling built in · Open-source, pay only for model usage https://openai.github.io/openai-agents-python/ · alternatives
Microsoft AutoGenFree Multi-agent conversation framework · Event-driven, async agent design · Studio UI for prototyping · Fully open-source https://microsoft.github.io/autogen/ · alternatives
LlamaIndexFreemium Leading framework for RAG and data agents · Connect LLMs to your documents & APIs · Agentic document workflows · Open-source with a hosted cloud https://www.llamaindex.ai/ · alternatives
Google Agent Development Kit (ADK)Free Open-source Python/Java framework from Google for building multi-agent systems · Native integration with Vertex AI Agent Engine and Gemini models · Model-agnostic — works with non-Google LLMs via LiteLLM https://adk.dev/ · alternatives
Pydantic AIFree Type-safe Python agent framework from the Pydantic team, validated structured outputs · Model-agnostic (OpenAI, Anthropic, Gemini, Groq, Mistral, local) · Built-in dependency injection and streaming; pairs with Pydantic Logfire for observability https://ai.pydantic.dev/ · alternatives
MastraFree Open-source TypeScript framework (Apache 2.0) for agents, workflows and RAG · Drops directly into existing React/Next.js apps or runs standalone · Built-in workflow engine with suspend/resume and human-in-the-loop steps https://mastra.ai/ · alternatives
AgnoFree Open-source (Apache-2.0) Python framework, 41.7k GitHub stars · AgentOS: FastAPI-based production runtime for deploying agents · Control-plane UI for monitoring live agent systems across clouds https://www.agno.com/ · alternatives
smolagentsFree Extremely minimal open-source library (~1,000 lines) from Hugging Face · CodeAgent paradigm: agents write actions as executable code, not JSON · Model-agnostic and modality-agnostic (text, vision, audio) with sandboxed execution via E2B/Docker/Modal https://huggingface.co/docs/smolagents/index · alternatives
AWS Strands AgentsFree Open-source (6,800+ stars) Python and TypeScript SDK from AWS · Steering handlers/hooks that catch agent mistakes before execution · Native Bedrock and AWS AgentCore integration, plus any-LLM support https://strandsagents.com/ · alternatives
DSPyFree Open-source (MIT) framework from Stanford NLP, 37k+ GitHub stars · Compiles/optimizes prompts automatically against metrics instead of manual prompt tuning · Production use at Databricks, Shopify, Dropbox, AWS; Shopify reports ~550x cost reduction https://dspy.ai/ · alternatives
Microsoft Agent FrameworkFree Unified open-source framework for building and orchestrating multi-agent systems in Python and .NET · Successor merging Semantic Kernel and AutoGen ideas · Graph workflows, memory and tool support · Free, MIT-licensed https://github.com/microsoft/agent-framework · alternatives
OpenSandbox (Alibaba)Free Secure, fast runtime for executing untrusted AI-generated code · SDKs and a self-hostable server · Container and microVM isolation options · Apache-licensed open source https://github.com/opensandbox-group/OpenSandbox · alternatives
Qwen-AgentFree Agent framework built on Qwen 3+ with function calling, MCP and code interpreter · Ships Browser Assistant and RAG examples · Free and self-hostable · Works with Qwen served locally or via DashScope https://github.com/QwenLM/Qwen-Agent · alternatives
Firebase GenkitFree Open-source framework for AI apps in JavaScript, Go, Dart and Python · Built-in Developer UI for tracing and testing flows · Model-agnostic plugins for Gemini, OpenAI, Anthropic, Ollama · Free; deploy anywhere https://github.com/genkit-ai/genkit · alternatives
Claude Agent SDKFree MIT-licensed Python and TypeScript SDKs exposing the agent loop that powers Claude Code · Built-in tools for files, shell and MCP with custom tool support · Bring an Anthropic API key; the SDK itself costs nothing https://github.com/anthropics/claude-agent-sdk-python · alternatives
Semantic KernelFree MIT SDK for integrating LLMs into C#, Python and Java apps · Plugins, planners and memory connectors · Works with OpenAI, Azure and local models https://github.com/microsoft/semantic-kernel · alternatives
LangChainFree MIT-licensed framework of model, tool and retrieval integrations for agents · Python and JavaScript versions · Pairs with LangGraph and LangSmith (separate free tier) https://www.langchain.com/ · alternatives
LangChain Deep AgentsFree Batteries-included agent harness with planning, sub-agents and a virtual file system · Built on LangGraph, model-agnostic · Open source https://github.com/langchain-ai/deepagents · alternatives
HaystackFree Apache-2.0 framework for context-engineered, production RAG and agent pipelines · Modular components with retrievers, generators and tool calling · Integrates most vector stores and model providers https://haystack.deepset.ai/ · alternatives
Vercel AI SDKFree TypeScript toolkit for streaming text, tool calls and agents across many model providers · React/Next/Vue/Svelte hooks for chat UIs · Open source https://ai-sdk.dev/ · alternatives
VoltAgentFree Open-source TypeScript agent framework with memory, tools and sub-agents · VoltOps console for tracing (free tier) · Provider-agnostic https://voltagent.dev/ · alternatives
CAMELFree Open-source multi-agent framework focused on scaling agent societies and role-playing · Data generation and simulation tooling · Apache-licensed https://www.camel-ai.org/ · alternatives
Cloudflare Agents SDKFree Framework for building and deploying stateful AI agents on Cloudflare Workers · Built-in state, scheduling, WebSockets and MCP support · SDK is open source; runs on Cloudflare's free tier to start https://github.com/cloudflare/agents · alternatives
VapiFreemium Orchestrates STT/LLM/TTS providers of choice into one low-latency voice-agent pipeline · Usage-based per-minute pricing with free trial minutes included · SOC 2/HIPAA/PCI compliance add-ons for regulated call-center deployments https://vapi.ai/ · alternatives
Retell AIFreemium Free starting credit with no contract required · Supports swapping GPT, Claude or Gemini as the reasoning layer per agent · Batch calling campaigns plus live AI-to-human call transfer built in https://www.retellai.com/ · alternatives
Bland AIFreemium All-in-one per-minute pricing bundles LLM+STT+TTS with no separate token pass-through charges · Free start with call credits plus an inbound number included · Tiered platform fees (Build/Scale) unlock lower per-minute rates for high volume https://www.bland.ai/ · alternatives
LiveKit AgentsFree Apache-2.0 open-source framework, fully self-hostable on your own servers · Native WebRTC client support across web/mobile/telephony out of the box · Native Model Context Protocol (MCP) support for tool-using voice agents https://github.com/livekit/agents · alternatives
PipecatFree BSD-2-Clause open-source Python framework for real-time voice/multimodal agents · Supports distributed multi-agent systems with handoffs over a shared bus · Maintained by Daily with an active plugin ecosystem for STT/LLM/TTS providers https://github.com/pipecat-ai/pipecat · alternatives
UltravoxFreemium Speech-native processing skips the STT-to-text bottleneck, preserving tone/cadence/pitch · Free tier: 5¢/min including TTS for up to 5 concurrent calls · Open-weight models (fixie-ai) published on Hugging Face for research use https://www.ultravox.ai/ · alternatives
BolnaFree Open-source framework for phone voice agents, from an India-based team · Connects to telephony, STT, LLM and TTS providers of your choice · Supports Indian languages · Self-host free; hosted platform is pay-as-you-go https://www.bolna.ai/ · alternatives
Kyutai UnmuteFree Wraps any text LLM with Kyutai's streaming speech-to-text and text-to-speech for voice conversation · Open-source code and weights that can be self-hosted · Low-latency interruptible conversation · Free demo available online https://unmute.sh/ · alternatives
TEN FrameworkFree Open-source framework for real-time conversational voice and multimodal agents · Modular graph of extensions in Python, Go, C++ and Node · Ships a playground and a VAD and turn-detection model · Free to self-host under an open license https://theten.ai/ · alternatives
XiaoZhi AIFree Open-source ESP32 voice chatbot with wake word, Opus streaming and a display · Free official server lets personal users try a Qwen real-time model after registering · Device-side and cloud MCP for controlling IoT gadgets · MIT licensed firmware supporting many ESP32 chips https://xiaozhi.me/ · alternatives
Browser UseFreemium Open-source library to run browser agents locally for free · Hosted agent API billed per token + browser-hour · Managed browser infrastructure for scaling agents https://browser-use.com/ · alternatives
BrowserbaseFreemium Free tier: 1 browser-hour/month, 3 concurrent browsers, 3 agent runs · Creator of Stagehand, an AI-native browser automation framework · Agent identity management for logging into restricted sites https://www.browserbase.com/ · alternatives
SkyvernFreemium Vision+LLM based automation that survives UI/DOM changes (no brittle selectors) · 22,700+ GitHub stars, self-hostable via Docker · Used by 500+ enterprises for workflow automation on arbitrary sites https://www.skyvern.com/ · alternatives
Steel.devFreemium Open-source browser API for fleets of cloud browsers · Free launch tier with one-time starting credits, no card required · Built-in auto-CAPTCHA solving and proxy management, sessions up to 24h https://steel.dev/ · alternatives
FirecrawlFreemium Converts any site into clean LLM-ready markdown/structured data · Free tier: 1,000 credits/month, no card required · Crawl, scrape, map and search endpoints purpose-built for RAG/agent pipelines https://www.firecrawl.dev/ · alternatives
Playwright MCPFree Official Microsoft MCP server exposing Playwright browser control to any MCP client · Uses accessibility snapshots instead of screenshots/vision, faster and more deterministic · 36k+ GitHub stars, Apache-2.0 licensed https://github.com/microsoft/playwright-mcp · alternatives
SimularFreemium Sai: always-on computer-use agent operating a private cloud virtual desktop · 72.6% success on computer-use benchmarks, above reported human baseline · Works across desktop GUI, APIs, terminals, and code, not just browser tasks https://www.simular.ai/ · alternatives
MagenticLiteFree Open-source agent working across the browser and local files · Fully open stack: MagenticBrain and Fara 1.5 models with open weights on Hugging Face · Human-in-the-loop approvals before risky actions · Free to run locally https://github.com/microsoft/magentic-ui · alternatives
Microsoft OmniParserFree Parses UI screenshots into structured interactable elements · Lets vision LLMs drive GUIs without DOM access · Open-source with weights on Hugging Face · Used by computer-use agent stacks https://github.com/microsoft/OmniParser · alternatives
Amazon Nova Act SDKFree Python SDK for building reliable browser-automation agents on Amazon Nova · Free to start at nova.amazon.com/act with an API key · Combines natural-language steps with Playwright code · Open-source SDK https://github.com/aws/nova-act · alternatives
UI-TARS Desktop (ByteDance)Free Open-source multimodal agent stack that controls desktop and browser from screenshots · Agent TARS CLI and desktop app with MCP support · Runs with UI-TARS models or other vision LLMs · Local operator mode keeps data on device https://github.com/bytedance/UI-TARS-desktop · alternatives
Alibaba Page AgentFree JavaScript in-page GUI agent that controls web interfaces via natural language · Embeds into your own web app with no browser extension · Uses text DOM instead of screenshots · Bring your own LLM API key https://github.com/alibaba/page-agent · alternatives
StagehandFree Open-source SDK adding act, extract and observe AI primitives on top of Playwright · Runs locally with your own model key · Optional Browserbase cloud browsers (separate free tier) https://www.stagehand.dev/ · alternatives
NanobrowserFree Chrome extension that runs a multi-agent team to automate browsing tasks · Uses your own API keys or local models, so nothing extra is charged · Everything runs locally in the browser and is open source · Free alternative to paid browser operator agents https://github.com/nanobrowser/nanobrowser · alternatives
BrowserOSFree Open-source Chromium browser with a built-in AI agent that automates web tasks · Runs with local models via Ollama or your own keys, keeping data on your machine · Positioned as a free alternative to Comet and ChatGPT Atlas · Supports MCP servers https://www.browseros.com/ · alternatives
Open-AutoGLMFree Phone agent that reads the screen and taps through apps to finish natural-language tasks · Supports Android, HarmonyOS and iOS via ADB, HDC or WebDriverAgent · Asks for confirmation on sensitive actions and allows human takeover · Apache 2.0; uses Zhipu/ModelScope API or a self-hosted model https://github.com/zai-org/Open-AutoGLM · alternatives
SmitheryFreemium Marketplace of 14,000+ hosted MCP servers with one-click connect · Handles OAuth/credential plumbing automatically for MCP tool auth · Connections reusable across Claude, GPT and other MCP clients https://smithery.ai/ · alternatives
ComposioFreemium Managed auth + tool-call infrastructure for agents across 250+ apps · Free tier: 20,000 tool calls/month with community support · Ships both MCP servers and native SDKs for major agent frameworks https://composio.dev/ · alternatives
GlamaFreemium Indexes and security-scans thousands of MCP servers for compatibility/safety · API gateway for connecting to MCP servers programmatically · Free account tier plus paid gateway/enterprise options https://glama.ai/mcp · alternatives
Cloudflare MCPFreemium Build and deploy remote MCP servers directly on Cloudflare Workers with built-in OAuth · Ships an Agents SDK for stateful, durable AI agents alongside MCP hosting · Runs on Cloudflare's free-tier-eligible Workers platform, scaling to global edge https://developers.cloudflare.com/agents/model-context-protocol/ · alternatives
MCP Registry (Official)Free The canonical open-source specification and docs for the Model Context Protocol · Reference server/client SDKs and the official server registry · Backed across the ecosystem — Claude, ChatGPT, VS Code, Cursor, MCPJam all implement it https://modelcontextprotocol.io/ · alternatives
Zapier MCPFreemium Turns any of Zapier's 9,000+ app integrations into callable MCP tools for any AI client · Pre-authenticated connections avoid per-app OAuth setup for agent builders · Included on all Zapier plans (including free), billed against existing task quota https://zapier.com/mcp · alternatives
Agent2Agent (A2A) ProtocolFree Open protocol for agents from different vendors to discover and talk to each other · SDKs in Python, JS, Java, .NET and Go · Now hosted by the Linux Foundation · Complements MCP for agent-to-agent communication https://github.com/a2aproject/A2A · alternatives
FastMCPFree Pythonic framework for building MCP servers and clients in a few lines · Proxying, composition and auth helpers · Open source, Apache-licensed https://gofastmcp.com/ · alternatives
MCP InspectorFree Visual testing and debugging tool for MCP servers · Call tools, browse resources and view logs interactively · Runs locally via npx https://github.com/modelcontextprotocol/inspector · alternatives
Official MCP Reference ServersFree Reference MCP servers such as filesystem, git, fetch and memory · Starting point for building your own servers · Open source https://github.com/modelcontextprotocol/servers · alternatives
GitHub MCP ServerFree GitHub's official MCP server for repos, issues, PRs and Actions · Works with Claude, Copilot, Cursor and other MCP clients · Open source; needs a GitHub token https://github.com/github/github-mcp-server · alternatives
MCP Python SDKFree Official Python SDK for MCP servers and clients · Stdio, SSE and streamable HTTP transports · Open source https://github.com/modelcontextprotocol/python-sdk · alternatives
MCP TypeScript SDKFree Official TypeScript SDK for MCP servers and clients · Streamable HTTP, stdio and auth helpers · Open source https://github.com/modelcontextprotocol/typescript-sdk · alternatives
mcp-useFree Fullstack framework for building MCP servers and MCP Apps for ChatGPT and Claude · Client library to connect any LLM to MCP servers · Open source https://mcp-use.com/ · alternatives
MetaMCPFree Aggregates many MCP servers behind one endpoint with a web UI · Namespaces, middleware and per-tool filtering · Docker-based, self-hosted · Free and open source https://github.com/metatool-ai/metamcp · alternatives
Mem0Freemium Free Hobby tier: unlimited end users, 10K add / 1K retrieval requests/month · Graph memory and entity linking for agent context · Open-source core plus managed cloud API https://mem0.ai/ · alternatives
ZepFreemium Free plan: 10,000 monthly credits, 2 projects, 200ms retrieval · Graph RAG with automated context assembly from chat + business data · Temporal knowledge graph for tracking how facts change over time https://www.getzep.com/ · alternatives
SupermemoryFreemium Free monthly usage allowance plus a Supermemory MCP server · Native connectors for Google Drive, Notion, OneDrive as memory sources · Deduplication so repeated content isn't rebilled https://supermemory.ai/ · alternatives
LettaFreemium Free BYOK plan supporting up to 3 stateful agents · Stateful-agent runtime with persistent memory, desktop app, CLI and API · Open-source framework (formerly MemGPT) plus a managed cloud https://www.letta.com/ · alternatives
RAGFlowFree Open-source RAG engine with deep document parsing and agent workflows · Grounded citations and template-based chunking · Self-host with Docker; bring your own LLM https://ragflow.io/ · alternatives
LightRAGFree Simple, fast graph-based RAG from HKU Data Science lab (EMNLP 2025) · Combines knowledge-graph and vector retrieval · Works with local or hosted LLMs https://github.com/HKUDS/LightRAG · alternatives
CogneeFree Open-source memory platform that turns data into a knowledge graph plus vectors for agents · Python API with pluggable graph, vector and relational stores · Self-host free; cloud option exists https://www.cognee.ai/ · alternatives
GraphitiFree Framework for building real-time temporal knowledge graphs for AI agents · Powers Zep's memory layer; runs standalone · Open source, works with Neo4j and other graph DBs https://github.com/getzep/graphiti · alternatives
MemOSFree Memory operating system for LLM agents with hybrid retrieval and persistent memory · Open source and self-hostable, with a cloud option · Built for multi-agent and personal assistants · Backed by MemTensor, a Shanghai team https://memos.openmem.net/ · alternatives
MemvidFree Packs agent memory into a single portable file with no server or database · Offline retrieval with no cloud dependency · Open source with SDKs · Aimed at replacing complex RAG pipelines https://github.com/memvid/memvid · alternatives
Basic MemoryFree MCP server that stores AI conversation memory as local Markdown notes · Works with Claude Desktop and other MCP clients, and is readable in Obsidian · Everything stays on your disk · Open source core is free; optional paid cloud sync https://basicmemory.com/ · alternatives
MemoriFreemium LLM-agnostic memory layer that captures agent context as structured state · Works with LangChain, Pydantic AI, Agno and MCP clients such as Claude Code · Open source under Apache 2.0, with free self-host · Hosted cloud with an always-free development tier https://memorilabs.ai/ · alternatives
This page is a plain-HTML mirror of the same catalog data rendered by the Flocci AI Tools app at aitools.flocci.in. It exists because the app is a single-page application; the content is identical. Generated 2026-10-16.