API Specification Toolbox

Services

APIs.Guru

Dec 24, 20

A directory of OpenAPI definitions for many different APIs, allowing you to search for APIs, and download their specification. The entire directory is managed via GitHub, allowing the community fork and contribute to the entire directory of APIs. Providing an entirely open source catalog of OpenAPI definitions that the community can use.

Google API Discovery Service

Dec 24, 20

You can use the Google API Discovery Service to build client libraries, IDE plugins, and other tools that interact with Google APIs. It provides a lightweight, JSON-based API that exposes machine-readable metadata about Google APIs.

Hashicorp Consul

Dec 24, 20

Consul is a highly available and distributed service discovery and KV store designed with support for the modern data center to make distributed systems and configuration easy.

Postman

Dec 24, 20

Postman is the only complete API development environment, used by nearly five million developers and more than 100,000 companies worldwide. Postman is an elegant, flexible tool used to build connected software via APIs — quickly, easily and accurately.

ProgrammableWeb

Dec 24, 20

The leading source of news & information about APIs, chronicling the evolution of the global API economy & providing the web’s most relied-on API Directory

RESTdesc

Dec 24, 20

Semantic descriptions for hypermedia APIs. RESTdesc allows you to capture the functionality of hypermedia APIs, so automated agents can use them. Despite their powerful capabilities, RESTdesc descriptions are easy to master. Description is not a goal in itself: you want your API to be used. See how RESTdesc opens up your API for discovery, based on its functional characteristics.

RapidAPI

Dec 24, 20

RapidAPI is the world’s largest API marketplace. RapidAPI lets you visualize all your apps’ APIs, and gives you real-time metrics on their stability. There are millions of software programs out there and they’re reshaping every aspect of our lives. We believe that they can get exponentially better by sharing data and functionality with each other. APIs are the language...

Roadie

Jun 05, 21

Roadie's SaaS platform handles hosting and upgrades and ensures you always have access to the latest Backstage features.

SmartAPI

Dec 24, 20

The SmartAPI project aims to maximize the FAIRness (Findability, Accessibility, Interoperability, and Reusability) of web-based Application Programming Interfaces (APIs). Rich metadata is essential to properly describe your API so that it becomes discoverable, connected, and reusable. We have developed a openAPI-based specification for defining the key API metadata elements and value se...

Swagger

Dec 24, 20

Swagger aides in development across the entire API lifecycle, from design and documentation, to test and deployment. Try it today!

TeejLab API Discovery

Dec 24, 20

Yappes

Dec 24, 20

Travel API Discovery & Marketplace

Google Registry API

Jan 14, 21

The Registry API allows teams to upload and share machine-readable descriptions of APIs that are in use and in development. These descriptions include API specifications in standard formats like OpenAPI, the Google API Discovery Service Format, and the Protocol Buffers Language. These API specifications can be used by tools like linters, browsers, documentation generators, test runners, pr...

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