Apis GitHub Repositories (2026) · Open Source Tools

A collective list of free APIs

A curated directory of ecommerce intelligence APIs for products, prices, reviews, sellers, and marketplaces.

A collaborative list of public APIs for developers

Welcome to the WSO2 API Manager source code! For info on working with the WSO2 API Manager repository and contributing code, click the link below.

KrakenD Community Edition: High-performance, stateless, declarative, API Gateway written in Go.

A tool for mocking HTTP services

🐻 The multi-zone service mesh for containers, Kubernetes and VMs. Built with Envoy. CNCF Sandbox Project.

SDKs for CoinAPI & FinFeedAPI

A plugin for the Fastify webserver to autogenerate a Fastify configuration based on a OpenApi(v2/v3) specification.

Next generation open source Altinn platform and applications.

A curated directory of job data APIs and scrapers for listings, hiring signals, salaries, and recruiting.

WildFly Elytron: Security, Authentication, and Authorization SPIs for the WildFly project

PHP version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project