https://hapifhir.io/
HAPI FHIR - The Open Source FHIR API for Java
HAPI FHIR is an Open Source FHIR-based Clinical Data Repository. Powering the next generation of connected health systems.
open source apifor javahapifhir
https://www.gravitee.io/de/platform/api-gateway-1
Open source API Gateway | Gravitee
Gravitee's API Gateway enables organizations to centrally expose and secure synchronous REST APIs, asynchronous APIs, and event brokers.
open source apigatewaygravitee
https://luraproject.org/community/
Community - Lura Project Open Source API Gateway
Community The Lura Project is developed in the open. Here are some of the channels we use to communicate and contribute. Issue tracker (preferred): Use the...
open source apicommunityluraprojectgateway
https://www.krakend.io/
High-performance Open Source API Gateway | KrakenD
KrakenD is a stateless, high-performance API gateway built for modern microservices. Open source, self-hosted, and trusted by enterprises worldwide.
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https://hoppscotch.io/
Hoppscotch • Open source API development ecosystem
Helps you create requests faster, saving precious time on development.
open source apihoppscotchdevelopmentecosystem
https://www.linuxfoundation.org/press/press-release/open-source-api-gateway-krakend-becomes-linux-foundation-project
Open Source API Gateway KrakenD Becomes Linux Foundation Project - Linux Foundation
Sep 13, 2022 - KrakenD framework becomes the Lura Project and gets home at Linux Foundation where it will be the only enterprise-grade API Gateway hosted in a neutral, open...
open source apilinux foundation projectgatewaykrakendbecomes
https://luraproject.org/docs/
Documentation - Lura Project Open Source API Gateway
Library Usage Lura is presented as a Go library that you can include in your own Go application to build a powerful proxy or API gateway. Of course you will...
open source apidocumentationluraprojectgateway
https://www.agoda.com/press/agoda-launches-open-source-api-agent-to-simplify-mcp-server-integrations/
Agoda Launches Open-Source API Agent to Simplify MCP Server Integrations » Agoda: See The World For...
Jan 29, 2026 - Singapore, January 29, 2026 — Digital travel platform Agoda today announced the open-source release of its API Agent, a universal Model Context Protocol (MCP)...
open source apisee the world
https://stoplight.io/open-source/spectral
Spectral: Open Source API Description Linter | Stoplight
Use Spectral rules to target API descriptions for quality improvement or enforce API Style Guide rules, such as naming conventions for OpenAPI models or...
open source apispectraldescriptionlinterstoplight
https://blog.verisign.com/security/introducing-getdns-a-modern-extensible-open-source-api-for-the-dns/
Introducing getdns: a Modern, Extensible, Open Source API for the DNS - Verisign Blog
open source api
https://app.keploy.io/signin
Keploy: Open Source API Test Case and Data Mock Generation using AI for Developers
Automate API test case generation and data mocks with Keploy for reliable and efficient testing.
open source api
https://openpanel.dev/for/developers
Analytics for Developers — Open Source, API-First, Self-Hostable | OpenPanel Analytics
OpenPanel is the open-source analytics platform built for developers. 16 SDKs, REST API, Docker self-hosting, TypeScript-first. Track events, funnels, and...
analytics for developersopen source apifirstselfopenpanel
https://www.apiman.io/
Apiman - Flexible Open Source API Management
Apiman is a flexible open source API Management platform aimed at enterprise users. Combining a rich API design and configuration layer with a fast, modular...
open source apiflexiblemanagement
https://stoplight.io/open-source
Open-Source API Mocking, Linting, & Documentation | Stoplight
API Open-Source Tools for API mocking, API linting, and API documentation. Learn more about Stoplight's open-source tools now.
open source apimockinglintingdocumentationstoplight
https://wiremock.org/
WireMock - flexible, open source API mocking | WireMock
WireMock is a tool for building mock APIs. API mocking enables you build stable, predictable development environments when the APIs you depend on are...
open source apiwiremockflexiblemocking
https://www.fusio-project.org/
Open Source API & AI Management Platform
Fusio is an open source API management platform designed for API builders and developers.
open source apiai management platform
https://blog.dnsimple.com/2021/09/enrique-introducing-php-and-python/
Introducing Our Developer Advocate & Two New Open-Source API Libraries - DNSimple Blog
Introducing Enrique Comba Riepenhausen as our Developer Advocate, along with two new open-source API libraries - PHP and Python.
open source apideveloper advocate
https://www.opensourceforu.com/2026/04/wso2-launches-open-source-api-platform-to-make-apis-agent-ready-instantly/
WSO2 Launches Open Source API Platform To Make APIs Agent-Ready Instantly - Open Source For You
Apr 20, 2026 - WSO2 rolls out an open source API platform that unifies APIs and AI assets, helping enterprises enable agentic AI while retaining control over cost,
open source api
https://circleid.com/posts/20140424_introducing_getdns_a_modern_extensible_open_source_api_for_the_dns
Introducing getdns: a Modern, Extensible, Open Source API for the DNS
At The Next Web, getdns is one of the challenge APIs in a 36-hour Hack Battle. Multiple teams of application coding experts are using getdns to develop...
open source apifor theintroducing
https://kestra.io/docs/api-reference
API Reference: Enterprise and Open Source Editions | Kestra
Access the complete API reference for both Kestra Open Source and Enterprise editions to integrate and automate your workflows.
api referenceopen sourceenterpriseeditionskestra
https://www.graphhopper.com/de/open-source/
Open Source - GraphHopper Directions API
open sourcegraphhopperdirectionsapi
https://ezbookkeeping.mayswind.net/httpapi/
API | ezBookkeeping - a open source, lightweight, self-hosted personal finance app
ezBookkeeping is a open source, lightweight, self-hosted personal finance app with a user-friendly interface and powerful bookkeeping features.
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https://opensource.posit.co/resources/videos/2023-11-28_webr-02-updates-to-webrs-developer-api-george-stagg-posit/
webR 0.2: Updates to webR's developer API | George Stagg | Posit :: Posit Open Source
image: thumbnail.jpg
developer apiopen sourceupdates
https://www.themomentum.ai/blog/introducing-open-wearables-the-open-source-api-for-wearable-health-intelligence
Open Wearables: The Open-Source API for Wearable Health Intelligence
Open Wearables provides wearable API integration for developers. Connect Apple Health, Garmin, Polar, Suunto, and more through one open-source platform.
open wearablesthe sourcehealth intelligenceapi
https://www.learnhouse.app/developers
LearnHouse for Developers - Open Source LMS with REST API & CLI
Build, extend, and self-host LearnHouse. Full REST API, CLI tools, Docker deployment, and a developer-friendly open-source codebase.
for developersopen sourcewith restlearnhouse
https://github.com/spree/spree
GitHub - spree/spree: Open-source headless eCommerce platform with REST API, TypeScript SDK, and...
Open-source headless eCommerce platform with REST API, TypeScript SDK, and Next.js storefront for cross-border, B2B or marketplace eCommerce. - spree/spree
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https://www.dashlane.com/blog/dashlane-google-open-source-api
Dashlane and Google Establish New Open Source Android API Project
Dashlane and Google are developing an open source API that will give Android apps the ability to access passwords stored in your favorite password manager!
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