Tag
21 catalogue entries use this topic; each Project's license policy is labeled separately.
API client that runs in the browser and stays fast
Hoppscotch is an API client that opens in a tab. Requests, collections, environments, and history are all there, and it starts in the time a desktop client takes to check for updates.
Open-source headless CMS turning content models into REST and GraphQL APIs.
Strapi is a self-hosted, open-source headless CMS built with JavaScript and TypeScript that turns content models designed in a no-code builder into REST and GraphQL APIs behind a customizable admin panel.
Open-source API client that stores collections as plain-text files
Bruno is an open-source desktop API client that stores collections as plain-text Bru files on your filesystem, so teams can version them in Git.
Code-first headless CMS and Next.js backend with an auto-generated admin panel.
Payload is a code-first, self-hosted headless CMS for Next.js that generates an admin panel with REST and GraphQL APIs from TypeScript config.
Open-source API client for designing, testing, and mocking APIs
Insomnia is Kong's open-source desktop API client for designing, debugging, and testing REST, GraphQL, gRPC, and WebSocket APIs.
Open-source Laravel ecommerce platform for stores and marketplaces
Bagisto is an open-source Laravel ecommerce platform for building online stores, multi-vendor marketplaces, and B2B portals.
Open-source headless commerce backend with a GraphQL API
Saleor is an open-source headless commerce backend with a GraphQL-only API and multi-channel catalog control, deployable with Docker or run as managed Cloud.
Open-source semantic layer for AI, BI, and embedded analytics
Cube Core is a self-hosted semantic layer that defines metrics and access rules once, then serves BI tools, apps, and AI agents over SQL, REST, and GraphQL.
Local-first desktop API client for REST, GraphQL, gRPC, and more
Yaak is a local-first desktop API client from the creator of Insomnia, with MIT-licensed source code. It sends REST, GraphQL, gRPC, WebSocket, and Server-Sent Events requests from native apps on macOS, Windows, and Linux.
Open-source API and AI gateway with dashboard and cloud
Tyk is an open-source API and AI gateway enforcing authentication, rate limits and analytics across REST, GraphQL, gRPC and MCP services. Teams self-host it with Docker or Kubernetes, or use the managed Tyk Cloud.
Code-first headless CMS with a GraphQL API and admin UI
KeystoneJS is a self-hosted, open-source headless CMS where developers define content models in TypeScript and get a GraphQL API plus an admin UI.
Open-source backend with Postgres, GraphQL, auth, and storage
Nhost is an open-source backend platform on PostgreSQL that generates a GraphQL API from the database schema and bundles authentication, file storage, and serverless functions, offered as a managed cloud or as Docker self-hosting.
Headless commerce framework with deep TypeScript customization
Vendure is a headless commerce framework built on NestJS with GraphQL APIs and a plugin system, self-hosted free under GPLv3 with paid plans for teams.
Open-source serverless CMS that deploys inside your AWS account with scale-to-zero pricing.
Webiny is a self-hosted, open-source serverless CMS that deploys inside your AWS account, combining headless GraphQL and REST content APIs with a visual website builder, file manager and publishing workflows. A free MIT Community tier covers single projects while paid Business and Enterprise editions add SSO, audit logs, multi-tenancy controls and support.
Open-source experience platform for marketing, sales, and support
Erxes is a self-hosted, open-source experience platform that combines marketing, sales, and support tooling behind one GraphQL API.
Self-hosted tracker for your media, fitness, and habits.
Ryot is a self-hosted tracker for movies, shows, books, music, games, workouts, and measurements, with imports, media-server integrations, and statistics.
Self-hosted CMS for custom sites, with Twig and GraphQL
Craft CMS is a self-hosted PHP content management system for custom websites, pairing Twig templates with a generated GraphQL API for headless delivery.
Open-source API client for REST, GraphQL, and WebSocket testing
Firecamp is a free, open-source API development client for testing REST, GraphQL, WebSocket, and SocketIO endpoints from one desktop or web app.
Offline, Git-native API workspace in plain Markdown
Voiden is an offline, Git-native API workspace that keeps requests, tests, notes, and documentation together in plain-text .void files.
Open-source GraphQL federation platform and API gateway
WunderGraph Cosmo is an open-source platform for GraphQL federation that composes REST and GraphQL services into one unified gateway API.
Continuous compliance automation across many frameworks
Openlane automates the evidence collection and control tracking behind SOC 2, ISO 27001, GDPR, and a dozen other frameworks, mapping shared controls once rather than per framework.