rest
A blazingly fast, single-file, and open-source server for your application with type-safe restful APIs, auth, admin dashboard, and more.
JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. It is based on a subset of the JavaScript Programming Language Standard ECMA-262 3rd Edition - December 1999. JSON is a text format that is completely language independent but uses conventions that are familiar to programmers of the C-family of languages, including C, C++, C#, Java, JavaScript, Perl, Python, and many others. These properties make JSON an ideal data-interchange language.
restc is an HTTP server middleware, aiming to enhance debugging experience on RESTful APIs.
Free OpenAPI Spec Editor. Craft robust OpenAPI Specs Faster.
A free openAPI spec editor and linter that breaks down your spec into fragments to make editing easier and more intuitive.
Describe APIs. Describe your data up front and generate schemas, API specifications, client / server code, docs, and more.
TypeSpec is a language for defining cloud service APIs and shapes. TypeSpec is a highly extensible language with primitives that can describe API shapes common among REST, OpenAPI, gRPC, and other protocols.
a Pound-Shop BaaS.
Poor man's Backend-as-a-Service (BaaS), similar to Firebase/Supabase/Pocketbase.
AWX provides a web-based user interface, REST API, and task engine built on top of Ansible. It is one of the upstream projects for Red Hat Ansible Automation Platform.
Capture is a reverse proxy that takes an incoming HTTP request and sends it to another server, proxying the response back to the client, while showing them in a dashboard.
Connexion is a modern Python web framework that makes spec-first and api-first development easy. You describe your API in an OpenAPI (or swagger) specification with as much detail as you want and Connexion will guarantee that it works as you specified.
Visual REST API Builder. Build REST APIs Visually. Deploy in Rust.
Dyan is a self-hosted platform to build, test, and export blazing-fast APIs from your database using visual tools and JavaScript/Python logic.
Document, Test & Discover APIs.
The modern open-source developer experience platform for your APIs. Create world-class API Docs with a built-in interactive playground which seamlessly turns to a full featured API Client.
Scalar is an open-source platform with: 🌐 Modern Rest API Client 📖 Beautiful API References ✨ 1st-Class OpenAPI/Swagger Support
expose REST APIs from a Rust program.
Dropshot is a general-purpose crate for exposing REST APIs from a Rust program.
Curl wrapper for an open-source API testing client for open minds. If you like the interface of HTTPie but miss the features of curl, curlie is what you are searching for. Curlie is a frontend to curl that adds the ease of use of httpie, without compromising on features and performance. All curl options are exposed with syntax sugar and output formatting inspired from httpie.
PostgREST is a standalone web server that turns your PostgreSQL database directly into a RESTful API. The structural constraints and permissions in the database determine the API endpoints and operations.
This document defines a "problem detail" as a way to carry machine-readable details of errors in a HTTP response to avoid the need to define new error response formats for HTTP APIs.
A Powerful API Mocking and Testing Tool
A full suite of tools to create and share API contracts, test APIs, mock them, and integrate them with web and mobile apps with ease.
Hurl, run and test HTTP requests with plain text.
Hurl is a command line tool that runs HTTP requests defined in a simple plain text format.
It can chain requests, capture values and evaluate queries on headers and body response. Hurl is very versatile: it can be used for both fetching data and testing HTTP sessions.
Hurl makes it easy to work with HTML content, REST / SOAP / GraphQL APIs, or any other XML / JSON based APIs.
Terminal UI to list, browse and run APIs defined with openapi spec.
Terminal UI to list, browse and run APIs defined with OpenAPI v3.0 spec.
A basic PHP admin panel ready for developing your projects.
Open-source PHP admin panel and dashboard built with Bootstrap 5 — relational CRUD generator, authentication, REST API, CLI, modular architecture, MySQL & SQLite.
An interactive console program that allows traffic flows to be intercepted, inspected, modified and replayed. An interactive TLS-capable intercepting HTTP proxy for penetration testers and software developers.
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The open source, no-code MCP Server for AI-Native API Access
Build a uniform API value chain for AI agents with secure, no-code endpoint translation across your existing API services.
reShapr is the open source, no-code MCP Server for AI-Native API Access. It bridges the gap between traditional REST/GraphQL/gRPC services and LLMs by transforming complex services into discoverable, optimized MCP tools.
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IP Geolocation API.
IP2Location.io provides a fast and accurate IP Geolocation API tool to determine a user's location and use the geolocation information in different use cases.
Expose your FastAPI endpoints as Model Context Protocol (MCP) tools, with Auth!
MCP (Model Context Protocol) is the emerging standard to define how AI agents communicate with applications. Using FastAPI-MCP, creating a secured MCP server to your application takes only 3 lines of code.
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🎩✨🌈 OOP Proxy wrappers/utilities - generates and manages proxies of your objects. This library aims to provide abstraction for generating various kinds of proxy classes.
The Open Source Firebase Alternative.
Supabase is an open source Firebase alternative. Start your project with a Postgres database, Authentication, instant APIs, Edge Functions, Realtime subscriptions, and Storage.
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RSS feed builder created with Bun🥖 and Hono🔥- builds from webpages and/or REST API calls
Notifico is an advanced omni-channel notification server.
Notifico is a powerful and flexible notification system that supports a wide range of communication channels, including email, SMS, and popular messaging platforms like Telegram. It provides a unified interface for sending notifications across these diverse channels, allowing you to reach your users through their preferred communication methods. With Notifico, you can easily integrate and manage multiple notification channels within your application, ensuring that your messages are delivered efficiently and effectively to your target audience.
Fast SQL for time-series
QuestDB is an open-source time-series database for high throughput ingestion and fast SQL queries with operational simplicity. It supports schema-agnostic ingestion using the InfluxDB line protocol, PostgreSQL wire protocol, and a REST API for bulk imports and exports.
Restish is a CLI for interacting with REST-ish HTTP APIs with some nice features built-in, like always having the latest API resources, fields, and operations available when they go live on the API without needing to install or update anything.
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A specification for building APIs in JSON.
Documentation for the application/vnd.api+json media type, a specification for APIs that use JSON.
If you’ve ever argued with your team about the way your JSON responses should be formatted, JSON:API can help you stop the bikeshedding and focus on what matters: your application. By following shared conventions, you can increase productivity, take advantage of generalized tooling and best practices. Clients built around JSON:API are able to take advantage of its features around efficiently caching responses, sometimes eliminating network requests entirely.
Limited DNS server with RESTful HTTP API to handle ACME DNS challenges easily and securely.
Many DNS servers do not provide an API to enable automation for the ACME DNS challenges. Those which do, give the keys way too much power. Leaving the keys laying around your random boxes is too often a requirement to have a meaningful process automation.
Acme-dns provides a simple API exclusively for TXT record updates and should be used with ACME magic "_acme-challenge" - subdomain CNAME records. This way, in the unfortunate exposure of API keys, the effects are limited to the subdomain TXT record in question.
Fast, Git Friendly API Client
Bruno is a new and innovative open source API client, aimed at revolutionizing the status quo represented by Postman, Insomnia and similar tools out there.
Bruno stores your collections directly in a folder on your filesystem. We use a plain text markup language, Bru, to save information about API requests.
Operating LLMs in production.
An open platform for operating large language models (LLMs) in production. Fine-tune, serve, deploy, and monitor any LLMs with ease.
OpenHue API is an open-source project that provides a comprehensive OpenAPI specification for the Philips Hue REST API
Offline-first web HTTP client. Usefull for REST API debug, alternative to Postman.
The modern API client that lives in your terminal. A powerful HTTP client that lives in your terminal.
Posting is an HTTP client, not unlike Postman and Insomnia. As a TUI application, it can be used over SSH and enables efficient keyboard-centric workflows. Your requests are stored locally in simple YAML files, meaning they're easy to read and version control.
API Discovery and Specification Generation Tool.
API discovery tool that maps attack surfaces from captured traffic and generates specs for REST, GraphQL, SOAP, and WebSocket APIs
Vespasian discovers API endpoints by observing real HTTP traffic and generates API specification files from those observations. It captures traffic through headless browser crawling or imports it from existing sources (Burp Suite XML exports, HAR files, and mitmproxy dumps), then classifies requests, probes discovered endpoints, and outputs specifications in the native format for each API type: OpenAPI 3.0 for REST, GraphQL SDL for GraphQL, and WSDL for SOAP services.
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A collaborative list of great resources about RESTful API architecture, development, test, and performance
Test your front-end against a real API.
A hosted REST-API ready to respond to your AJAX requests.
Reqres simulates real application scenarios. If you want to test a user authentication system, Reqres will respond to a successful login/register request with a token for you to identify a sample user, or with a 403 forbidden response to an unsuccessful login/registration attempt.
trigger async analysis from your Gitlab CI and expose badges.
Gitlab CI triggers asynchone REST analysis and display badges and files.
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Backbone.js gives structure to web applications by providing models with key-value binding and custom events, collections with a rich API of enumerable functions, views with declarative event handling, and connects it all to your existing API over a RESTful JSON interface.
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A model set of guidelines for RESTful APIs and Events, created by Zalando
schema is a command line tool part of the API Platform framework that instantly generates a set of PHP classes from RDF vocabularies such as (but not limited to) Schema.org or ActivityStreams. Alternatively, it can generate PHP classes from an OpenAPI documentation.
In this tutorial, we will build a simple RESTful API application using Symfony and the latest PHP 8.
A super fast CLI tool to decode and encode JWTs built in Rust.
jwt-cli is a command line tool to help you work with JSON Web Tokens (JWTs). Like most JWT command line tools out there, you can decode almost any JWT header and claims body. Unlike any that I've found, however, jwt-cli allows you to encode a new JWT with nearly any piece of data you can think of. Custom header values (some), custom claim bodies (as long as it's JSON, it's game), and using any secret you need.
Neurosync is a javascript ORM that is offline & real-time capable.
ORM you say? Neurosync doesn't do anything crazy directly with a database - the database to Neurosync is a facade typically backed by a REST API. It's an ORM in the sense that it handles creating, updating, and deleting relational data to any degree you wish.
Incrementally adoptable type-safety for your new and existing APIs. RPC-like client, contract, and server implementation for a pure REST API
ts-rest offers a simple way to define a contract for your API, which can be both consumed and implemented by your application, giving you end to end type safety without the hassle or code generation.
Design API Specifications.
Leverage OpenAPI to accelerate your teams with a spec-driven design-first approach to API development.
Insomnia is an open-source, cross-platform API client for GraphQL, REST, WebSockets and gRPC.
LocalAI is the free, Open Source OpenAI alternative. LocalAI act as a drop-in replacement REST API that’s compatible with OpenAI API specifications for local inferencing. It allows you to run LLMs, generate images, audio (and not only) locally or on-prem with consumer grade hardware, supporting multiple model families and architectures. Does not require GPU. It is created and maintained by Ettore Di Giacinto.
Creates diagrams from textual descriptions! Kroki provides a unified API with support for BlockDiag (BlockDiag, SeqDiag, ActDiag, NwDiag, PacketDiag, RackDiag), BPMN, Bytefield, C4 (with PlantUML), Ditaa, Erd, Excalidraw, GraphViz, Mermaid, Nomnoml, Pikchr, PlantUML, Structurizr, SvgBob, UMLet, Vega, Vega-Lite, WaveDrom... and more to come!
A lightweight, idiomatic and composable router for building Go HTTP services.
chi is a lightweight, idiomatic and composable router for building Go HTTP services. It's especially good at helping you write large REST API services that are kept maintainable as your project grows and changes. chi is built on the new context package introduced in Go 1.7 to handle signaling, cancelation and request-scoped values across a handler chain.
A simple HTTP Request & Response Service. HTTP Request & Response Service, written in Python + Flask.
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The opinionated framework for easily creating typesafe data layers. End-to-end typesafe data fetching for frontend teams at scale.
Telize is a JSON IP and GeoIP REST API (IP Geolocation) built on Nginx and Lua http://www.telize.com
Open source Node.js Headless CMS 🚀 Design APIs fast, manage content easily. Strapi is the leading open-source headless CMS. It’s 100% JavaScript, fully customizable and developer-first.
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The Apache Ambari project is aimed at making Hadoop management simpler by developing software for provisioning, managing, and monitoring Apache Hadoop clusters. Ambari provides an intuitive, easy-to-use Hadoop management web UI backed by its RESTful APIs.
Free Cloud JSON Storage API.
Free data storage as a service. Pantry allows devs to store JSON for multiple apps & users. A good resource when building personal projects, apps for hackathons, and prototypes alike.
Pantry is a free service that provides perishable data storage for small projects. Data is securely stored for as long as you and your users need it and is deleted after a period of inactivity. Simply use the restful API to post JSON objects and we'll take care of the rest.
Typesafe APIs Made Simple 🪄. Easy to build APIs that are end-to-end type-safe and adhere to OpenAPI standards.
oRPC is a powerful combination of RPC and OpenAPI, makes it easy to build APIs that are end-to-end type-safe and adhere to OpenAPI standards
REST is an acronym for REpresentational State Transfer and an architectural style for distributed hypermedia systems. Roy Fielding first presented it in 2000 in his famous dissertation.
Like other architectural styles, REST has its guiding principles and constraints. These principles must be satisfied if a service interface needs to be referred to as RESTful.