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Open Source Projects tagged "Api"

A curated collection of the best open source projects tagged "Api". Each listing includes a website screenshot along with a detailed review of its features.

Favicon of Openlane

Openlane

Continuous compliance automation for SOC 2, ISO 27001 & more

  • Stars

    295

  • Last commit

    11 hours ago

  • License

    Apache-2.0
Automates evidence collection, control tracking, and audit reporting across SOC 2, ISO 27001, NIST 800-53, GDPR, and 12+ other frameworks in one platform.

Open Source Alternative to:

Favicon of Vanta
Vanta
Favicon of Hoppscotch

Hoppscotch

Sleek, intuitive API development and testing platform

  • Stars

    80,091

  • Last commit

    11 hours ago

  • License

    MIT
Lightweight, fast, and feature-rich API client for developers. Test, debug, and document APIs with ease in a clean, modern interface.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of Strapi

Strapi

Headless CMS with REST and GraphQL APIs out of the box

  • Stars

    73,012

  • Last commit

    11 hours ago

  • License

    MIT
TypeScript headless CMS that generates REST and GraphQL APIs from your content model, with a no-code builder, plugin system, and full self-hosting support.

Open Source Alternative to:

Favicon of Sanity
Sanity
Favicon of LocalAI

LocalAI

AI
Self-hosted AI runtime for text, voice, vision, and agents

  • Stars

    48,659

  • Last commit

    15 hours ago

  • License

    MIT
Run LLMs, speech, image generation, and autonomous agents on your own hardware with an OpenAI-compatible API and 60+ swappable backends.

Open Source Alternative to:

Favicon of LM Studio
LM Studio
Favicon of Meilisearch

Meilisearch

Lightning-fast search for your applications

  • Stars

    59,076

  • Last commit

    11 days ago

  • License

    MIT
A powerful, fast, and easy-to-use search engine that delivers instant and relevant results for your websites and applications.

Open Source Alternative to:

Favicon of ElasticSearch
ElasticSearch
Favicon of Insomnia

Insomnia

Powerful API development and testing made effortless

  • Stars

    39,960

  • Last commit

    14 hours ago

  • License

    Apache-2.0
Intuitive API client for REST, GraphQL, and gRPC. Debug, test, and collaborate on APIs with ease across platforms.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of Directus

Directus

Open-source data platform for effortless content management

  • Stars

    37,499

  • Last commit

    12 hours ago

  • License

    Unknown
A versatile headless CMS and API engine that simplifies data management, content creation, and application development.

Open Source Alternative to:

Favicon of WordPress
WordPress
Favicon of Skyvern

Skyvern

AI
Automate any website workflow with AI and computer vision

  • Stars

    22,843

  • Last commit

    13 hours ago

  • License

    AGPL-3.0
Transform manual browser tasks into automated workflows using AI. Handle complex forms, CAPTCHAs, 2FA, and data extraction across any website at scale.

Open Source Alternative to:

Favicon of Browserbase
Browserbase
Favicon of Maxun

Maxun

AI
No-code web scraping, crawling, and extraction platform

  • Stars

    17,277

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Turn any website into structured data using a visual recorder, natural language prompts, or API. Includes proxy rotation, scheduling, and webhook integrations.

Open Source Alternative to:

Favicon of Jina AI
Jina AI
Favicon of Bitwarden

Bitwarden

Secure password management for individuals and businesses

  • Stars

    19,924

  • Last commit

    11 hours ago

  • License

    Unknown
Bitwarden is an open source password manager that securely stores, shares, and autofills passwords across unlimited devices.

Open Source Alternative to:

Favicon of LastPass
LastPass
Favicon of Scalar

Scalar

Open-source API documentation and testing platform

  • Stars

    15,980

  • Last commit

    16 hours ago

  • License

    MIT
Scalar is an open-source tool for building, customizing, and hosting interactive API documentation with OpenAPI support.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of LibreTranslate

LibreTranslate

Free offline machine translation API you can host yourself

  • Stars

    16,120

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Self-hosted machine translation API that works offline. Download, setup, and run your own translation server in minutes with complete privacy control.

Open Source Alternative to:

Favicon of Google Translate
Google Translate
Favicon of AITable

AITable

Visual database for workflow automation across apps

  • Stars

    15,571

  • Last commit

    10 months ago

  • License

    AGPL-3.0
AITable.ai offers a visual database platform that simplifies workflow automation and connects to over 6,000 apps through integrations like Zapier and Make.

Open Source Alternative to:

Favicon of Airtable
Airtable
Favicon of Encore

Encore

Accelerate backend development with effortless scalability

  • Stars

    12,298

  • Last commit

    14 hours ago

  • License

    MPL-2.0
A powerful platform for building cloud backends, automating infrastructure, and simplifying development workflows for faster, more efficient coding.

Open Source Alternative to:

Favicon of Supabase
Supabase
Favicon of Nango

Nango

Build product integrations with 500+ APIs in hours

  • Stars

    11,577

  • Last commit

    11 hours ago

  • License

    Elastic-2.0
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:

Favicon of Pipedream
Pipedream
Favicon of Manticore Search

Manticore Search

Lightning-fast open source search engine for big data

  • Stars

    11,955

  • Last commit

    18 hours ago

  • License

    GPL-3.0
Open source search database delivering 2.83x faster performance than Elasticsearch. Features vector search, SQL interface, and full-text capabilities.

Open Source Alternative to:

Favicon of ElasticSearch
ElasticSearch
Favicon of Tyk

Tyk

Universal API management for REST, GraphQL, gRPC & async

  • Stars

    10,798

  • Last commit

    13 hours ago

  • License

    Unknown
Fast, scalable API management platform with open source gateway, analytics, dev portal and dashboard. Deploy anywhere with AI-ready governance and security.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of Vendure

Vendure

Flexible e-commerce for modern businesses

  • Stars

    8,371

  • Last commit

    13 hours ago

  • License

    MIT
A headless, API-first e-commerce framework built on Node.js with TypeScript, offering customization and scalability for online stores.

Open Source Alternative to:

Favicon of WooCommerce
WooCommerce
Favicon of Mockoon

Mockoon

Effortless API mocking for seamless development

  • Stars

    8,377

  • Last commit

    2 days ago

  • License

    MIT
Create, run, and share mock REST APIs without coding. Boost productivity with an intuitive interface and powerful features.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of Requestly

Requestly

Intercept, modify, and debug HTTP(S) requests effortlessly

  • Stars

    6,750

  • Last commit

    18 hours ago

  • License

    AGPL-3.0
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of UnKey

UnKey

Secure, scalable API key management for developers

  • Stars

    5,422

  • Last commit

    11 hours ago

  • License

    AGPL-3.0
Streamline API authentication with UnKey's powerful, developer-friendly platform for creating, revoking, and monitoring API keys.

Open Source Alternative to:

Favicon of Kong
Kong
Favicon of ACI.dev

ACI.dev

AI
Build reliable AI agents with unified tool integration

  • Stars

    4,884

  • Last commit

    3 months ago

  • License

    Apache-2.0
Platform for connecting AI agents to 500+ tools with built-in multi-tenant auth management and granular permissions using either function calling or a unified MCP server

Open Source Alternative to:

Favicon of Pipedream
Pipedream
Favicon of Vikunja

Vikunja

Organize, collaborate, and conquer your tasks

  • Stars

    5,152

  • Last commit

    20 hours ago

  • License

    AGPL-3.0
A powerful, open-source task management platform for teams and individuals, offering customizable workflows and seamless integration.

Open Source Alternative to:

Favicon of Linear
Linear
Favicon of Chartbrew

Chartbrew

Create stunning data visualizations with ease

  • Stars

    4,045

  • Last commit

    6 days ago

  • License

    MIT
A powerful, open-source platform for building interactive dashboards and charts from multiple data sources without coding.

Open Source Alternative to:

Favicon of Power BI
Power BI
Favicon of Stoat

Stoat

Group chat for friends and communities, without the baggage

  • Stars

    3,248

  • Last commit

    11 hours ago

  • License

    Unknown
Self-hostable group chat with servers, channels, voice, and moderation tools. No ads, no data mining, built under EU privacy law.

Open Source Alternative to:

Favicon of Discord
Discord
Favicon of HTTPie

HTTPie

Modern command-line HTTP client for the API era

  • Stars

    4,028

  • Last commit

    1 year ago

  • License

    BSD-3-Clause
Intuitive, user-friendly CLI tool for making HTTP requests, debugging APIs, and testing web services with ease and efficiency.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of LearnHouse

LearnHouse

Create, sell, and manage online courses with full control

  • Stars

    2,195

  • Last commit

    1 day ago

  • License

    AGPL-3.0
Open-source LMS for building and selling courses with a block-based editor, built-in payments, AI tools, analytics, and white-labeling. Self-host or use the cloud.

Open Source Alternative to:

Favicon of Miro
Miro
Favicon of Notifuse

Notifuse

Self-hosted email platform with visual editor & analytics

  • Stars

    2,073

  • Last commit

    7 days ago

  • License

    AGPL-3.0
Free open-source email platform for newsletters and transactional emails. Self-hosted alternative to Mailchimp with visual MJML editor, A/B testing, and analytics.

Open Source Alternative to:

Favicon of Resend
Resend
Favicon of Firecamp

Firecamp

Unified API development ecosystem for modern teams

  • Stars

    2,607

  • Last commit

    6 months ago

  • License

    AGPL-3.0
All-in-one platform for API testing, documentation, and collaboration, simplifying the entire API development lifecycle.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of Voiden

Voiden

Build APIs like code with Git-native workspace

  • Stars

    1,532

  • Last commit

    17 hours ago

  • License

    Apache-2.0
Offline-first API workspace that unifies specs, docs, tests, and mocks in programmable Markdown blocks. Version control everything in plain text files.

Open Source Alternative to:

Favicon of Postman
Postman
Favicon of OpenSERP

OpenSERP

Self-hosted SERP API for Google, Bing, Yandex, and more

  • Stars

    1,298

  • Last commit

    1 month ago

  • License

    MIT
Query Google, Bing, Yandex, Baidu, DuckDuckGo, and Ecosia through one REST API. Self-host free under MIT, or use the managed cloud option.

Open Source Alternative to:

Favicon of DataForSEO
DataForSEO
Favicon of Meteroid

Meteroid

Flexible billing infrastructure for modern SaaS

  • Stars

    1,221

  • Last commit

    19 hours ago

  • License

    AGPL-3.0
Open-source pricing and billing platform that helps SaaS companies launch, test, and scale complex billing models with ease. Features metering, invoicing, and real-time data.

Open Source Alternative to:

Favicon of Stripe Billing
Stripe Billing
Favicon of ByteChef

ByteChef

AI
Build AI agents and automate complex workflows seamlessly

  • Stars

    993

  • Last commit

    12 hours ago

  • License

    Apache-2.0
Create intelligent automation workflows combining AI agents with your favorite apps and services. Connect, automate, and scale your operations without complex coding.

Open Source Alternative to:

Favicon of n8n
n8n
Favicon of Hive

Hive

Open-source GraphQL federation platform

  • Stars

    485

  • Last commit

    16 hours ago

  • License

    MIT
A fully open-source schema registry, analytics, and gateway for GraphQL federation and APIs

Open Source Alternative to:

Favicon of Apollo GraphQL
Apollo GraphQL
Favicon of Gravitee

Gravitee

Unified API, event, and AI agent management platform

  • Stars

    444

  • Last commit

    11 hours ago

  • License

    Apache-2.0
Full-lifecycle API management platform that unifies synchronous and asynchronous ecosystems. Manage APIs, event streams, and AI agents with enterprise security and 4x faster gateway performance.

Open Source Alternative to:

Favicon of Postman
Postman
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