Open Source Projects using MCP

A curated collection of the 73 best open source software using MCP. Find the most popular and trending open source projects to learn from, contribute to, or use in your own projects.

Nango

Build product integrations with 500+ APIs in hours

Stars
7,273
Forks
712
Last commit
9 hours ago

Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Pipedream

Fonoster

Open-source cloud communications platform for developers

Stars
7,896
Forks
514
Last commit
27 days ago

Build and deploy powerful voice and messaging applications with ease using Fonoster's flexible, scalable, and developer-friendly platform.

Open Source Alternative to:

Twilio

OneUptime

Comprehensive monitoring and incident management platform

Stars
6,939
Forks
374
Last commit
11 hours ago

All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

Opsgenie

Lingo.dev

Automated translations that scale with your code and commits

Stars
5,405
Forks
837
Last commit
8 days ago

Transform your app into a global product with AI-powered localization that integrates directly into your development workflow. Supports 83+ languages with Git-native automation.

Open Source Alternative to:

Crowdin

OpenPencil

Open-source Figma alternative with AI and full programmability

Stars
4,661
Forks
400
Last commit
9 hours ago

Native .fig file support, built-in AI with 90 tools, headless CLI, Vue SDK for custom editors, real-time P2P collaboration. MIT licensed, works offline.

Open Source Alternative to:

Figma

5ire

Smart desktop AI assistant with powerful local knowledge features

Stars
5,197
Forks
405
Last commit
2 months ago

Cross-platform desktop AI assistant supporting multiple providers, local knowledge base, and custom prompts. Integrates MCP protocol for enhanced AI tool capabilities.

Open Source Alternative to:

Claude

Bifrost

Ultra-fast AI gateway with enterprise-grade reliability

Stars
4,621
Forks
547
Last commit
9 hours ago

Open-source AI gateway delivering 50x faster performance than alternatives. Access 1000+ models from 8+ providers with built-in governance, fallback, and observability.

Open Source Alternative to:

Kong AI Gateway

Ever Gauzy

Comprehensive open-source business management platform

Stars
3,674
Forks
764
Last commit
13 hours ago

All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations

Open Source Alternative to:

HubSpot

PipesHub

Open-source AI platform for enterprise search & workflow

Stars
2,863
Forks
452
Last commit
12 hours ago

Transform scattered business data into actionable insights with AI-powered enterprise search, workflow automation, and explainable results with full source citations.

Open Source Alternative to:

Glean

Trieve

AI-powered search and RAG platform for faster, more relevant results

Stars
2,647
Forks
241
Last commit
3 months ago

Trieve offers an all-in-one solution for search, recommendations, and RAG with automatic continuous improvement based on user feedback.

Open Source Alternative to:

Pinecone

Checkmk

Complete IT infrastructure monitoring made simple

Stars
2,259
Forks
533
Last commit
9 hours ago

Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.

Open Source Alternative to:

DataDog

Flowglad

Open-source payments without webhooks

Stars
1,711
Forks
86
Last commit
1 month ago

Build payment systems with real-time billing state and full-stack SDK. Design pricing in natural language, deploy checkout and metering instantly with zero webhooks.

Open Source Alternative to:

Stripe Billing

Minutes

Record, transcribe & search conversations locally

Stars
1,169
Forks
120
Last commit
10 hours ago

Open-source conversation memory tool with local transcription via whisper.cpp, structured markdown output, and Claude integration. Free forever.

Open Source Alternative to:

Otter.ai

WunderGraph

Unify APIs, databases, and services effortlessly

Stars
1,204
Forks
234
Last commit
10 hours ago

A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

Open Source Alternative to:

Apollo GraphQL

LLM Gateway

Unified API for all LLM providers with analytics

Stars
1,176
Forks
128
Last commit
11 hours ago

Route, manage, and analyze LLM requests across multiple providers with one API. Compatible with OpenAI format, includes usage analytics and performance monitoring.

Open Source Alternative to:

Kong AI Gateway

Databuddy

Privacy-first analytics without cookies or tracking

Stars
1,007
Forks
180
Last commit
9 hours ago

Get powerful web analytics with zero cookies, 100% GDPR compliance, and full data ownership. Lightweight 3KB script delivers real-time insights without compromising user privacy.

Open Source Alternative to:

Google Analytics

Kodus

Effortless Code Reviews, Tailored for You

Stars
1,075
Forks
98
Last commit
10 hours ago

Enhance code quality with precise, customizable AI reviews. Improve security, performance, and team productivity effortlessly.

Open Source Alternative to:

CodeRabbit

Jarvis

Dictate 4x faster than typing with natural voice commands

Stars
503
Forks
81
Last commit
12 days ago

Transform your computer interaction with natural voice commands. Dictate 4x faster than typing, control any app hands-free, and boost productivity instantly.

Open Source Alternative to:

Wispr Flow

LLMChat

Advanced AI research platform with agentic workflows

Stars
1,063
Forks
203
Last commit
1 year ago

Privacy-focused open-source platform offering deep research capabilities, multi-model support, and customizable AI workflows for enhanced productivity.

Open Source Alternative to:

Grok

Temps

Replace $500/mo SaaS with one self-hosted platform

Stars
429
Forks
20
Last commit
10 hours ago

Self-hosted deployment platform combining analytics, error tracking, and monitoring. Replace Vercel + Sentry + analytics tools with one binary on your VPS.

Open Source Alternative to:

Vercel

Ycode

Design, host, and manage websites with complete control and transparency

Stars
148
Forks
116
Last commit
11 hours ago

Open source website builder and CMS combining visual design tools with self-hosting freedom or managed cloud hosting. Build custom websites without vendor lock-in.

Open Source Alternative to:

Webflow

0 Finance

Transform idle cash into competitive yield for startups

Stars
221
Forks
43
Last commit
1 month ago

High-yield treasury management for startups earning 8% APY with insurance coverage up to $1M. Open US/EU accounts instantly with full liquidity and no minimums.

Betterlytics

Privacy-first, cookieless analytics without consent banners

Stars
155
Forks
16
Last commit
9 hours ago

GDPR-compliant web analytics with real-time insights, session replay, and funnel tracking. No cookies, no tracking, no consent banners required.

Open Source Alternative to:

Google Analytics

CrawlChat

Transform docs into AI-powered knowledge assistants

Stars
117
Forks
20
Last commit
1 day ago

Convert technical documentation into intelligent AI chatbots for websites, Discord, and Slack. Get instant answers, analytics, and seamless human support escalation.

Open Source Alternative to:

Chatbase

xyd

Transform documentation with developer-focused simplicity

Stars
109
Forks
8
Last commit
9 hours ago

Create powerful, interactive documentation with hot reloading, TypeScript support, custom components, and built-in API docs generation.

Open Source Alternative to:

Mintlify

Cody

AI-powered coding assistant for enterprise development teams

Stars
83
Forks
29
Last commit
15 hours ago

Advanced AI coding assistant that helps enterprise teams write, fix, and maintain code with enhanced accuracy and consistency across large codebases

Open Source Alternative to:

Claude Code

OmoiOS

Ship features while you sleep with autonomous AI agents

Stars
46
Forks
4
Last commit
9 days ago

Deploy AI agents that build features, fix bugs, and handle complex workflows overnight. Wake up to tested code and ready-to-review pull requests.

Open Source Alternative to:

Cursor

MDMA

Transform forms into adaptive chat experiences

Stars
12
Forks
1
Last commit
11 hours ago

Convert multi-step forms into conversational AI experiences. Users ask questions, get clarifications, and complete complex processes effortlessly with 98% reliability.

Open Source Alternative to:

Streamlit

UserTourKit

Lightweight, accessible product tours built for React developers

Stars
2
Forks
0
Last commit
20 hours ago

Headless React tour library with WCAG 2.1 AA accessibility, TypeScript support, and pre-styled components. Under 8KB gzipped with full customization control.

Open Source Alternative to:

Userflow

Reflet

Turn user feedback into features that matter

Stars
17
Forks
0
Last commit
27 days ago

Collect feedback, prioritize with AI-powered voting, and share transparent roadmaps. Build products users love with automated triage and seamless integration.

Open Source Alternative to:

Featurebase

Mimrai

AI-powered task management with radical focus

Stars
16
Forks
5
Last commit
2 months ago

Open source minimalist task management tool with AI companion that filters noise, automates coordination, and guides teams through complexity with calm focus.

Open Source Alternative to:

Jira

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

Stars
Forks
Last commit

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Nango

Build product integrations with 500+ APIs in hours

Stars
7,273
Forks
712
Last commit
9 hours ago

Complete integrations platform with 500+ pre-built APIs, code-first approach, unified data models, and enterprise-grade security. Free tier available.

Open Source Alternative to:

Pipedream

Fonoster

Open-source cloud communications platform for developers

Stars
7,896
Forks
514
Last commit
27 days ago

Build and deploy powerful voice and messaging applications with ease using Fonoster's flexible, scalable, and developer-friendly platform.

Open Source Alternative to:

Twilio

OneUptime

Comprehensive monitoring and incident management platform

Stars
6,939
Forks
374
Last commit
11 hours ago

All-in-one solution for uptime monitoring, incident management, and status pages to keep your services running smoothly

Open Source Alternative to:

Opsgenie

Lingo.dev

Automated translations that scale with your code and commits

Stars
5,405
Forks
837
Last commit
8 days ago

Transform your app into a global product with AI-powered localization that integrates directly into your development workflow. Supports 83+ languages with Git-native automation.

Open Source Alternative to:

Crowdin

OpenPencil

Open-source Figma alternative with AI and full programmability

Stars
4,661
Forks
400
Last commit
9 hours ago

Native .fig file support, built-in AI with 90 tools, headless CLI, Vue SDK for custom editors, real-time P2P collaboration. MIT licensed, works offline.

Open Source Alternative to:

Figma

5ire

Smart desktop AI assistant with powerful local knowledge features

Stars
5,197
Forks
405
Last commit
2 months ago

Cross-platform desktop AI assistant supporting multiple providers, local knowledge base, and custom prompts. Integrates MCP protocol for enhanced AI tool capabilities.

Open Source Alternative to:

Claude

Bifrost

Ultra-fast AI gateway with enterprise-grade reliability

Stars
4,621
Forks
547
Last commit
9 hours ago

Open-source AI gateway delivering 50x faster performance than alternatives. Access 1000+ models from 8+ providers with built-in governance, fallback, and observability.

Open Source Alternative to:

Kong AI Gateway

Ever Gauzy

Comprehensive open-source business management platform

Stars
3,674
Forks
764
Last commit
13 hours ago

All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations

Open Source Alternative to:

HubSpot

PipesHub

Open-source AI platform for enterprise search & workflow

Stars
2,863
Forks
452
Last commit
12 hours ago

Transform scattered business data into actionable insights with AI-powered enterprise search, workflow automation, and explainable results with full source citations.

Open Source Alternative to:

Glean

Trieve

AI-powered search and RAG platform for faster, more relevant results

Stars
2,647
Forks
241
Last commit
3 months ago

Trieve offers an all-in-one solution for search, recommendations, and RAG with automatic continuous improvement based on user feedback.

Open Source Alternative to:

Pinecone

Checkmk

Complete IT infrastructure monitoring made simple

Stars
2,259
Forks
533
Last commit
9 hours ago

Monitor your entire IT infrastructure with 2,000+ plugins, automated discovery, and scalable architecture. Open source and enterprise solutions available.

Open Source Alternative to:

DataDog

Flowglad

Open-source payments without webhooks

Stars
1,711
Forks
86
Last commit
1 month ago

Build payment systems with real-time billing state and full-stack SDK. Design pricing in natural language, deploy checkout and metering instantly with zero webhooks.

Open Source Alternative to:

Stripe Billing

Minutes

Record, transcribe & search conversations locally

Stars
1,169
Forks
120
Last commit
10 hours ago

Open-source conversation memory tool with local transcription via whisper.cpp, structured markdown output, and Claude integration. Free forever.

Open Source Alternative to:

Otter.ai

WunderGraph

Unify APIs, databases, and services effortlessly

Stars
1,204
Forks
234
Last commit
10 hours ago

A powerful backend framework that simplifies API integration, enhances security, and boosts developer productivity for modern web applications.

Open Source Alternative to:

Apollo GraphQL

LLM Gateway

Unified API for all LLM providers with analytics

Stars
1,176
Forks
128
Last commit
11 hours ago

Route, manage, and analyze LLM requests across multiple providers with one API. Compatible with OpenAI format, includes usage analytics and performance monitoring.

Open Source Alternative to:

Kong AI Gateway

Databuddy

Privacy-first analytics without cookies or tracking

Stars
1,007
Forks
180
Last commit
9 hours ago

Get powerful web analytics with zero cookies, 100% GDPR compliance, and full data ownership. Lightweight 3KB script delivers real-time insights without compromising user privacy.

Open Source Alternative to:

Google Analytics

Kodus

Effortless Code Reviews, Tailored for You

Stars
1,075
Forks
98
Last commit
10 hours ago

Enhance code quality with precise, customizable AI reviews. Improve security, performance, and team productivity effortlessly.

Open Source Alternative to:

CodeRabbit

Jarvis

Dictate 4x faster than typing with natural voice commands

Stars
503
Forks
81
Last commit
12 days ago

Transform your computer interaction with natural voice commands. Dictate 4x faster than typing, control any app hands-free, and boost productivity instantly.

Open Source Alternative to:

Wispr Flow

LLMChat

Advanced AI research platform with agentic workflows

Stars
1,063
Forks
203
Last commit
1 year ago

Privacy-focused open-source platform offering deep research capabilities, multi-model support, and customizable AI workflows for enhanced productivity.

Open Source Alternative to:

Grok

Temps

Replace $500/mo SaaS with one self-hosted platform

Stars
429
Forks
20
Last commit
10 hours ago

Self-hosted deployment platform combining analytics, error tracking, and monitoring. Replace Vercel + Sentry + analytics tools with one binary on your VPS.

Open Source Alternative to:

Vercel

Ycode

Design, host, and manage websites with complete control and transparency

Stars
148
Forks
116
Last commit
11 hours ago

Open source website builder and CMS combining visual design tools with self-hosting freedom or managed cloud hosting. Build custom websites without vendor lock-in.

Open Source Alternative to:

Webflow

0 Finance

Transform idle cash into competitive yield for startups

Stars
221
Forks
43
Last commit
1 month ago

High-yield treasury management for startups earning 8% APY with insurance coverage up to $1M. Open US/EU accounts instantly with full liquidity and no minimums.

Betterlytics

Privacy-first, cookieless analytics without consent banners

Stars
155
Forks
16
Last commit
9 hours ago

GDPR-compliant web analytics with real-time insights, session replay, and funnel tracking. No cookies, no tracking, no consent banners required.

Open Source Alternative to:

Google Analytics

CrawlChat

Transform docs into AI-powered knowledge assistants

Stars
117
Forks
20
Last commit
1 day ago

Convert technical documentation into intelligent AI chatbots for websites, Discord, and Slack. Get instant answers, analytics, and seamless human support escalation.

Open Source Alternative to:

Chatbase

xyd

Transform documentation with developer-focused simplicity

Stars
109
Forks
8
Last commit
9 hours ago

Create powerful, interactive documentation with hot reloading, TypeScript support, custom components, and built-in API docs generation.

Open Source Alternative to:

Mintlify

Cody

AI-powered coding assistant for enterprise development teams

Stars
83
Forks
29
Last commit
15 hours ago

Advanced AI coding assistant that helps enterprise teams write, fix, and maintain code with enhanced accuracy and consistency across large codebases

Open Source Alternative to:

Claude Code

OmoiOS

Ship features while you sleep with autonomous AI agents

Stars
46
Forks
4
Last commit
9 days ago

Deploy AI agents that build features, fix bugs, and handle complex workflows overnight. Wake up to tested code and ready-to-review pull requests.

Open Source Alternative to:

Cursor

MDMA

Transform forms into adaptive chat experiences

Stars
12
Forks
1
Last commit
11 hours ago

Convert multi-step forms into conversational AI experiences. Users ask questions, get clarifications, and complete complex processes effortlessly with 98% reliability.

Open Source Alternative to:

Streamlit

UserTourKit

Lightweight, accessible product tours built for React developers

Stars
2
Forks
0
Last commit
20 hours ago

Headless React tour library with WCAG 2.1 AA accessibility, TypeScript support, and pre-styled components. Under 8KB gzipped with full customization control.

Open Source Alternative to:

Userflow

Reflet

Turn user feedback into features that matter

Stars
17
Forks
0
Last commit
27 days ago

Collect feedback, prioritize with AI-powered voting, and share transparent roadmaps. Build products users love with automated triage and seamless integration.

Open Source Alternative to:

Featurebase

Mimrai

AI-powered task management with radical focus

Stars
16
Forks
5
Last commit
2 months ago

Open source minimalist task management tool with AI companion that filters noise, automates coordination, and guides teams through complexity with calm focus.

Open Source Alternative to:

Jira