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79 results tagged api  ✕   ✕
Gibberish https://github.com/gibber-cc/gibberish
12/04/2025 cluster icon
  • Soundgrain : Soundgrain is a graphical interface where users can draw and edit trajectories to control granular sound synthesis. Soundgrain is written with Python/...
  • Borderlands : The instrument may be performed by creating and destroying new clouds and dynamically moving them around the landscape. The landscape itself may also ...
  • kimono : Turn websites into structured APIs from your browser in seconds
  • Faust Programming Language : Faust (Functional Audio Stream) is a functional programming language for sound synthesis and audio processing with a strong focus on the design of syn...
  • Essentia : Open-source library and tools for audio and music analysis, description and synthesis

Gibberish is designed to be a fast audio API for the browser. It takes the low-level building blocks provided by genish.js and uses them to create higher-level synthesizers, effects, and sequencers. Gibberish processes each sample of each synthesis block one sample at a time, enabling a variety of effects not typically possible in JavaScript synthesis systems, most importantly single-sample feedback loops and audio-rate modulation of scheduling.

audio api browser synth synthesis
Appwrite https://appwrite.io/
10/12/2024 cluster icon
  • Rancher : Rancher is open source software that makes it simple for organizations to deploy a private container service and deliver Docker orchestration to users...
  • WireMock : Free and Open Source tool for building mock APIs. Create stable development environments, isolate yourself from flakey 3rd parties and simulate APIs t...
  • Izanami : Izanami is a shared configuration, feature flipping and A/B testing service perfectly well suited for micro services environment written in scala and ...
  • Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
  • Supabase : Supabase is an open source Firebase alternative. Create a backend in less than 2 minutes. Start your project with a Postgres Database, Authentication,...

Appwrite is an end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices. Appwrite abstracts the complexity and repetitiveness required to build a modern backend API from scratch and allows you to build secure apps faster.

Using Appwrite, you can easily integrate your app with user authentication and multiple sign-in methods, a database for storing and querying users and team data, storage and file management, image manipulation, Cloud Functions, and more services.

backend server opensource docker microservice api authentication storage database
Mockoon https://github.com/mockoon/mockoon
06/11/2024 cluster icon
  • WireMock : Free and Open Source tool for building mock APIs. Create stable development environments, isolate yourself from flakey 3rd parties and simulate APIs t...
  • DuckRails : DuckRails is a development tool. Its main purpose is to allow developers to quickly mock API endpoints that for many possible reasons can't reach at a...
  • Novu : Novu provides a unified API that makes it simple to send notifications through multiple channels, including In-App, Push, Email, SMS, and Chat. With N...
  • mountebank : mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Simply point your application under tes...
  • Flagr : Flagr is an open source Go service that delivers the right experience to the right entity and monitors the impact. It provides feature flags, experime...

Mockoon is the easiest and quickest way to design and run mock APIs. No remote deployment, no account required, free and open-source.

api testing mock opensource
Novu https://github.com/novuhq/novu
03/09/2023 cluster icon
  • Novu : The open-source notifications infrastructure. A fully-featured microservice to send SMS, E-mail, Slack and Push notifications. Embeddable notification...
  • ntfy : Send push notifications to your phone or desktop using PUT/POST
  • Bridgy : Bridgy pulls comments, likes, and reshares on social networks back to your web site. You can also use it to post to social networks - or comment, like...
  • Flagr : Flagr is an open source Go service that delivers the right experience to the right entity and monitors the impact. It provides feature flags, experime...
  • Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...

Novu provides a unified API that makes it simple to send notifications through multiple channels, including In-App, Push, Email, SMS, and Chat. With Novu, you can create custom workflows and define conditions for each channel, ensuring that your notifications are delivered in the most effective way possible.

notification api service opensource
Val Town https://www.val.town/
14/07/2023 cluster icon
  • StdLib : The Standard Library for Functions as a Service. Discover pre-built APIs, compose your own, build apps, and move your business faster than ever with n...
  • Quicktype : Quicktype generates types and helper code for reading JSON in C#, Swift, JavaScript, Flow, Python, TypeScript, Go, Rust, Objective-C, Kotlin, C++ and ...
  • Appwrite : Appwrite is an end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices. Appwrite abstracts the co...
  • Comby : Comby is a tool for matching and rewriting code.
  • Bliss.js : Want to use Vanilla JS but find native APIs a bit unwieldy? Bliss is for you

Val Town is a social website to write and run code. Vals are small JavaScript/TypeScript snippets that run on their servers. You can create APIs, scheduled functions, email yourself, and persist small pieces of data — all from the browser.

code repl cloud lamda functions api
WireMock https://wiremock.org/
28/06/2023 cluster icon
  • Motty : Motty provides the simpler way to test your client services. It is a web application which gives you ability to create your own custom responses. So y...
  • Mockoon : Mockoon is the easiest and quickest way to design and run mock APIs. No remote deployment, no account required, free and open-source.
  • Appwrite : Appwrite is an end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices. Appwrite abstracts the co...
  • Postal : Postal is a complete and fully featured mail server for use by websites & web servers. Think Sendgrid, Mailgun or Postmark but open source and ready f...
  • Cool QL Cool : CoolQLCool (CQC) is an open source GraphQL server that allows you to turn websites into GraphQL APIs.

Free and Open Source tool for building mock APIs. Create stable development environments, isolate yourself from flakey 3rd parties and simulate APIs that don't exist yet.

api mock server opensource
Appsmith https://github.com/appsmithorg/appsmith
01/03/2022 cluster icon
  • Quicktype : Quicktype generates types and helper code for reading JSON in C#, Swift, JavaScript, Flow, Python, TypeScript, Go, Rust, Objective-C, Kotlin, C++ and ...
  • Prisma : Prisma turns your database into a powerful GraphQL API which you can either use to build your own GraphQL server or connect to it directly from the fr...
  • GraphQL : GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. GraphQL provides a complete and understandabl...
  • Mapstraction : A javascript library to hide differences between mapping APIs.
  • History.js : History.js gracefully supports the HTML5 History/State APIs (pushState, replaceState, onPopState) in all browsers. Including continued support for dat...
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Turn any datasource into an internal app in minutes. Appsmith lets you drag-and-drop UI components to build pages, connect to any API, database or GraphQL source and write logic with JavaScript objects.

graphql ui administration api database javascript
Supabase https://supabase.com/
19/11/2021 cluster icon
  • Appwrite : Appwrite is an end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices. Appwrite abstracts the co...
  • Horizon : RethinkDB Horizon is an open-source developer platform for building realtime, scalable web apps. It is built on top of RethinkDB, and allows app devel...
  • OpenKeyval : OpenKeyval is a completely open key-value data store, exposed as a drop-dead simple web service. The goal is to make this a very easy way to persist d...
  • Real time event sources : A directory of high quality real-time event sources.
  • CryptPad : CryptPad is the Zero Knowledge realtime collaborative editor. Encryption carried out in your web browser protects the data from the server, the cloud ...
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Supabase is an open source Firebase alternative. Create a backend in less than 2 minutes. Start your project with a Postgres Database, Authentication, instant APIs, realtime subscriptions and Storage.

postgresql realtime authentication api storage
AI21 Studio https://www.ai21.com/studio
15/08/2021 cluster icon
  • Improv : A model-backed generative text grammar tool for javascript. Improv is similar to Tracery in that it can generate random, procedurally generated text r...
  • EleutherAI : EleutherAI is a decentralized grassroots collective of volunteer developers, engineers, and researchers focused on AI alignment, scaling, and open sou...
  • Wordoid : Wordoids are made-up words. They look unique and sound natural. They are great for naming new things.
  • Swagger : Swagger is a powerful open source framework backed by a large ecosystem of tools that helps you design, build, document, and consume your RESTful APIs...
  • Alpaca : Given a web API, Generate client libraries in node, php, python, ruby

AI21 Studio allows users to generate text completions for an input prompt using Jurassic-1 language models.

api naturallanguage text generator machinelearning
Quicktype https://quicktype.io/
06/06/2021 cluster icon
  • Data Science Toolkit : A collection of the best open data sets and open-source tools for data science, wrapped in an easy-to-use REST/JSON API with command line, Python and ...
  • Falcor : Falcor is the innovative data platform that powers the Netflix UIs. Falcor allows you to model all your backend data as a single Virtual JSON object o...
  • Appsmith : Turn any datasource into an internal app in minutes. Appsmith lets you drag-and-drop UI components to build pages, connect to any API, database or Gra...
  • Flagr : Flagr is an open source Go service that delivers the right experience to the right entity and monitors the impact. It provides feature flags, experime...
  • Snyk : Snyk helps you use open source and stay secure. Continuously find & fix vulnerabilities in your dependencies.

Quicktype generates types and helper code for reading JSON in C#, Swift, JavaScript, Flow, Python, TypeScript, Go, Rust, Objective-C, Kotlin, C++ and more. Customize online with advanced options, or download a command-line tool.

json graphql code developer api C# swift go javascript python
FastAPI https://fastapi.tiangolo.com/
31/03/2021 cluster icon
  • Eve : Eve is an open source Python REST API framework designed for human beings. It allows to effortlessly build and deploy highly customizable, fully featu...
  • Cliquet : Cliquet is a toolkit to ease the implementation of HTTP microservices, such as data-driven REST APIs.
  • XgeneCloud : XgeneCloud is an API Framework platform that instantly generates REST / GraphQL APIs on any SQL database. Supports MySQL, PostgreSQL, MSSQL, SQLite &...
  • Data Science Toolkit : A collection of the best open data sets and open-source tools for data science, wrapped in an easy-to-use REST/JSON API with command line, Python and ...
  • Frisby.js : Frisby is a REST API testing framework built on node.js and Jasmine that makes testing API endpoints easy, fast, and fun. Read below for a quick overv...

FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.

python rest api framework
Hoppscotch https://github.com/hoppscotch/hoppscotch
11/01/2021 cluster icon
  • htty : htty is a console application for interacting with web servers. It’s a fun way to explore web APIs and to learn the ins and outs of HTTP.
  • mountebank : mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Simply point your application under tes...
  • IFTT : Put the internet to work for you.
  • Pact : Fast, easy and reliable testing for integrating web apps, APIs and microservices. Pact is a code-first tool for testing HTTP and message integrations ...
  • Minimize round-trip times : An article on the best practices to apply in order to minimize HTTP round-trip times
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A free, online, open source API request builder

api web http tool
httpbin.org https://httpbin.org/
01/07/2020 cluster icon
  • mountebank : mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Simply point your application under tes...
  • Mockbin : Mockbin allows you to generate custom endpoints to test, mock, and track HTTP requests & responses between libraries, sockets and APIs.
  • Polly.JS : Polly.JS is a standalone, framework-agnostic JavaScript library that enables recording, replaying, and stubbing HTTP interactions. Polly taps into nat...
  • Mock Service Worker : Mock by intercepting requests on the network level. Seamlessly reuse the same mock definition for testing, development, and debugging.
  • Webhook Tester : Webhook Tester allows you to easily test webhooks and other types of HTTP requests.

A simple HTTP Request & Response Service.

mock http api test
RSS Box https://github.com/stefansundin/rssbox
23/06/2020 cluster icon
  • DuckRails : DuckRails is a development tool. Its main purpose is to allow developers to quickly mock API endpoints that for many possible reasons can't reach at a...
  • Feedity : Feedity is an online data extraction tool and RSS feed builder
  • mountebank : mountebank is the first open source tool to provide cross-platform, multi-protocol test doubles over the wire. Simply point your application under tes...
  • Page2RSS : Page2RSS is a service that helps you monitor web sites that do not publish feeds. It will check any web page for updates and deliver them to your favo...
  • Prisma : Prisma turns your database into a powerful GraphQL API which you can either use to build your own GraphQL server or connect to it directly from the fr...
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This app uses the API of other websites and gives you an RSS feed in return. Quick and simple.

rss api tool
Buf https://buf.build/
22/06/2020 cluster icon
  • htty : htty is a console application for interacting with web servers. It’s a fun way to explore web APIs and to learn the ins and outs of HTTP.
  • Neutrino : Neutrino is a companion tool which lets you build web and Node.js applications with shared presets or configurations. It intends to make the process o...
  • tox : Command line driven CI frontend and development task automation tool At its core tox povides a convenient way to run arbitrary commands in isolated en...
  • stylelint : A mighty, modern CSS linter that helps you enforce consistent conventions and avoid errors in your stylesheets.
  • PHP Insights : PHP Insights was carefully crafted to simplify the analysis of your code directly from your terminal, and is the perfect starting point to analyze the...
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A CLI tool to help working with Protocol Buffers.
Buf currently contains:

  • A linter that enforces good API design choices and structure.
  • A breaking change detector that enforces compatibility at the source code or wire level.
  • A configurable file builder that produces Images, our extension of FileDescriptorSets.
api protobuf lint build cli tool
XgeneCloud https://xgenecloud.com/
17/06/2020 cluster icon
  • FastAPI : FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
  • Frisby.js : Frisby is a REST API testing framework built on node.js and Jasmine that makes testing API endpoints easy, fast, and fun. Read below for a quick overv...
  • Eve : Eve is an open source Python REST API framework designed for human beings. It allows to effortlessly build and deploy highly customizable, fully featu...
  • Appsmith : Turn any datasource into an internal app in minutes. Appsmith lets you drag-and-drop UI components to build pages, connect to any API, database or Gra...
  • PySQLi : Python SQL injection framework

XgeneCloud is an API Framework platform that instantly generates REST / GraphQL APIs on any SQL database.

  • Supports MySQL, PostgreSQL, MSSQL, SQLite & MariaDb.
  • Comes with a builtin GUI Database Client and API Client.
  • Host generated APIs as Serverless Functions on any Cloud Platform.
api rest graphql framework platform sql serverless
BlurHash https://blurha.sh/
23/04/2020 cluster icon
  • Matrix : Matrix is an open standard for decentralised communication, providing simple HTTP APIs and open source reference implementations for securely distribu...
  • Flagr : Flagr is an open source Go service that delivers the right experience to the right entity and monitors the impact. It provides feature flags, experime...
  • WireMock : Free and Open Source tool for building mock APIs. Create stable development environments, isolate yourself from flakey 3rd parties and simulate APIs t...
  • thumbor : thumbor is a smart imaging service and enables on-demand cropping, resizing, applying filters and optimizing images. Cropping photos automatically can...
  • Mockoon : Mockoon is the easiest and quickest way to design and run mock APIs. No remote deployment, no account required, free and open-source.
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BlurHash is a compact representation of a placeholder for an image.

image api placeholder opensource
Openframe https://openframe.io/
14/03/2020 cluster icon
  • OpenCalais : Calais is a rapidly growing toolkit of capabilities that allow you to readily incorporate state-of-the-art semantic functionality within your blog, co...
  • Anything to Triples : Anything To Triples (any23) is a library, a web service and a command line tool that extracts structured data in RDF format from a variety of Web docu...
  • DERI Pipes : Inspired by Yahoo's Pipes, DERI Pipes is an engine and graphical environment for general Web Data transformations and Mashup.
  • IFTT : Put the internet to work for you.
  • Collage.js : Collage.js brings together many public APIs, along a method of presenting media within a limitless two-dimesional space to create memorable experience...

Openframe is an open source platform for artists, curators and art enthusiasts to share, discover and display digital art.

Openframe is free. Anyone can set up a frame using an HDMI display and a Raspberry Pi.

Openframe is a collaborative, on-going project. The platform consists of an API, a web app, and software for the RPi that currently supports images, video, web-based artwork, and shaders. Our goal is to create a system that is accessible and extensible, allowing artists to easily add support for new digital formats.

art display api web raspberrypi
Real time event sources https://github.com/todsac/eventsources
06/02/2020 cluster icon
  • Supabase : Supabase is an open source Firebase alternative. Create a backend in less than 2 minutes. Start your project with a Postgres Database, Authentication,...
  • Horizon : RethinkDB Horizon is an open-source developer platform for building realtime, scalable web apps. It is built on top of RethinkDB, and allows app devel...
  • ReactPHP : Event-driven, non-blocking I/O with PHP. React is a low-level library for event-driven programming in PHP. At its core is an event loop, on top of whi...
  • Kestra : Kestra is an open-source, event-driven orchestration platform that makes both scheduled and event-driven workflows easy. By bringing Infrastructure as...
  • deepstream.io : A Scalable Server for Realtime Web Apps Stores and syncs data in realtime Built in node.js Works for browsers, backend & mobile Scales via clustering...
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A directory of high quality real-time event sources.

list realtime api events
Volatile https://volatile.wtf/
21/11/2019 cluster icon
  • ImmortalDB : ImmortalDB is the best way to store persistent key-value data in the browser. Data saved to ImmortalDB is redundantly stored in Cookies, IndexedDB, Lo...
  • Prisma : Prisma turns your database into a powerful GraphQL API which you can either use to build your own GraphQL server or connect to it directly from the fr...
  • Appwrite : Appwrite is an end-to-end backend server for Web, Mobile, Native, or Backend apps packaged as a set of Docker microservices. Appwrite abstracts the co...
  • Freebase : A community-curated database of well-known people, places, and things
  • Appsmith : Turn any datasource into an internal app in minutes. Appsmith lets you drag-and-drop UI components to build pages, connect to any API, database or Gra...

Sometimes you just need to put something somewhere and then fetch it later. And sometimes you need to change it without asking for anyone’s permission or keeping track of a token. Volatile is a database that anyone can edit. On the internet.

database public api keyvalue
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