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Self-Hosted API Management for Builders.

• Database API Gateway

  Unlock legacy databases and expose them via modern REST APIs.

• Custom Backend Logic for APIs

  Build and manage custom business logic tailored to your domain.

• Gateway for Microservices

  Route, orchestrate, and secure traffic between internal services.

• API Developer Portal

  Provide docs, testing, and SDKs for internal or external developers.

• API Monetization

  Enable freemium or tiered access with quotas, limits, and billing hooks.

• MCP Integration

  Leverage the Model Context Protocol to enable AI-driven access and control of API endpoints.

• API Usage Analytics

  Monitor traffic, detect issues early, and understand API consumption.

• Headless CMS Backend

  Manage and expose structured content to any frontend via APIs.

• SDK Automation

  Automatically generate ready-to-use client SDKs (PHP, TypeScript, Python, etc.).

• Download artifact

  You can either download the officialrelease or clone the repository.

  git clone https://github.com/apioo/fusio.git

• Set up your.env

  Configure fitting database credentials at theAPP_CONNECTION variable, all other parameters are optional.

  • MySQL:pdo-mysql://root:test1234@localhost/fusio
  • PostgreSQL:pdo-pgsql://postgres:postgres@localhost/fusio
  • SQLite:pdo-sqlite:///fusio.sqlite

• Run migrations

  php bin/fusio migrate

• Create administrator user

  After the installation is complete, you have to create a new administrator account. Choose as account type "Administrator".

  php bin/fusio adduser

• Install backend app

  php bin/fusio marketplace:install fusio

• Start via PHP built-in server

  This should be only used for testing, for production you need a classical Nginx/Apache setup or use Docker, take a look at ourinstallation documentation for more details.

  php -S 127.0.0.1:8080 -t public

Instead of manual installation you can also use the web installer script located at/install.phpto complete the installation. After installation, it is recommended to delete this "install" script.

To run Fusio with Docker you only need the official Fusiodocker imageand a database. The following example shows a minimaldocker-compose.yaml which you can use to run Fusio.

services:fusio:image:fusio/fusiorestart:alwaysenvironment:FUSIO_PROJECT_KEY:"42eec18ffdbffc9fda6110dcc705d6ce"FUSIO_CONNECTION:"pdo-mysql://fusio:61ad6c605975@mysql-fusio/fusio"FUSIO_BACKEND_USER:"test"FUSIO_BACKEND_EMAIL:"demo@fusio-project.org"FUSIO_BACKEND_PW:"test1234"links:      -mysql-fusioports:      -"8080:80"mysql-fusio:image:mysql:8.0restart:alwaysenvironment:MYSQL_RANDOM_ROOT_PASSWORD:"1"MYSQL_USER:"fusio"MYSQL_PASSWORD:"61ad6c605975"MYSQL_DATABASE:"fusio"volumes:      -./db:/var/lib/mysql

Fusio includes a flexible app system that lets you install various web-based apps to supportdifferent API-related use cases. These apps are typically simple JavaScript frontends thatinteract with Fusio's internal API.

You can browse all available apps in theFusio Marketplace,and install them using either the CLI:

php bin/fusio marketplace:install fusio

or directly through the backend interface.

The backend app is the main app to configure and manage your API located at/apps/fusio/.

Fusio provides aVSCode extensionwhich can be used to simplify action development.

To build and integrate applications with Fusio, you can use one of our officially supported SDKs, which simplify interaction with a Fusio instance. Alternatively, you can directly communicate with the REST API for full control and flexibility.

Besides our core product, we offer additional services to augment the functionality of Fusio.

• SDKgen
  SDKgen is a powerful code generator to automatically build client SDKs for your REST API.
• APIgen
  Generate fully working and customizable APIs based on your data model.
• APImon
  APImon provides an intuitive service to monitor and analyze API endpoints.
• TypeSchema
  A JSON format to describe data models in a language neutral format.
• TypeAPI
  An OpenAPI alternative to describe REST APIs for type-safe code generation.
• TypeHub
  A collaborative platform to design and build API models and client SDKs.
• PSX
  An innovative PHP framework dedicated to build fully typed REST APIs.

By default, the entire Fusio project can be hosted on a single domain. In this setup:

• Your API is served from the root path (e.g.,https://acme.com/).
• Web apps like the developer portal and admin backend are accessible under the/apps directory (e.g.,https://acme.com/apps/developer).

This setup is quick to get started with and requires no additional configuration.For production environments, we recommend a subdomain-based structure:

• api.acme.com
  Hosts only the Fusio API. In this setup, you can safely remove theapps/ folder from thepublic/ directory.
• developer.acme.com
  Hosts theDeveloper App, a portal where third-party developers can register, view documentation, and access their credentials.
• fusio.acme.com (optional)
  Hosts theBackend App, used to manage your Fusio instance. You can also host this on a separate internal domain.

Note: This is just a suggested setup. You're free to choose any domain or subdomain structure that best fits your infrastructure.

Please check out our official documentation website where we bundle all documentation resources:

https://docs.fusio-project.org/

If you have questions or run into issues while using Fusio:

• Open adiscussion for general questions, feedback, or feature ideas.
• Report bugs or technical problems via theissue tracker.
• Join ourDiscord community to chat directly with the developers and other users.

If you're a company or freelancer looking for more tailored help, please check out ourconsulting services below.

Are you a blogger, writer, or run a developer-focused publication? We'd love for you to cover Fusio!

Visit theMedia Page to download official icons for use in your articles or videos.

For companies or freelancers who want in-depth guidance on using and integrating Fusio:

• We offerconsulting services to help you evaluate whether Fusio fits your architecture.
• Ourworkshops walk you through key functionality, answer your specific questions, and help identify the best integration approach.

Feel free tocontact us for more details.

If Fusio helps you build APIs faster or adds value to your projects, please consider supporting our work:

• ⭐ Star the project on GitHub
• ☕Sponsor via GitHub
• 💬 Spread the word on social media or write about Fusio

Every bit of support helps us continue improving the platform!

We’re grateful to our partners who support the Fusio project and share our vision of advancing open API development.

If your company is interested in becoming a partner and being listed here, considerbecoming a sponsor.