Fusio

Open-source API management platform to build and monetise APIs.

About Fusio

Fusio is an open-source API management platform that helps you build, manage and monetise REST APIs. It covers the full API lifecycle: exposing databases and logic as APIs, OAuth2 security, rate limiting, a developer portal, automatic OpenAPI specifications and generated client SDKs, plus subscription plans for charging consumers. Released under the AGPL and written in PHP, it self-hosts with Docker for teams productising their APIs.

Fusio website preview

Live preview of fusio-project.org via the WordPress mShots service — it can take a few seconds to generate on a first visit.

Fusio: strengths & things to check

Strengths

Completely free to use — this directory lists no paid plan for it.
Covers api, api management, gateway, open source — see the focus areas listed in its key facts.
Has 6 close alternatives in the same category on this page, so switching or comparing is easy.

Things to check

Free tools can change their model or shut down — avoid locking critical work into it without an export path.
Current plan prices are not listed here (they change too often to print reliably) — confirm the exact price on the official site.
It is one of 1164 tools in the Developer Tools category here — compare it against the alternatives below before you commit.

Derived from this listing's own data (pricing model, focus areas and category) — not a hands-on review score.

Fusio pricing

Pricing model	Free — listed in this directory as a free tool, with no paid plan required to use it.
Free access	Yes — fully free
Current plan prices	Listed on the official site — prices change, so this directory links out instead of printing a number that may already be stale.
Official site	fusio-project.org

Fusio key facts

Category: Developer Tools
Pricing: Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas: api, api management, gateway, open source
Official site: fusio-project.org

Fusio FAQ

How much does Fusio cost?

Free — listed in this directory as a free tool, with no paid plan required to use it. Current plans and prices are listed on the official site (fusio-project.org).

What is Fusio used for?

Open-source API management platform to build and monetise APIs. Its focus areas in the Developer Tools category: api, api management, gateway, open source.

Where can I try Fusio?

On its official site, fusio-project.org — the Visit Official Site button above goes straight there.

Fusio vs alternatives

	Fusio	Artillery	Cockpit	Flyimg
Pricing	Free — listed in this directory as a free tool, with no paid plan required to use it.	Freemium — a free tier lets you start, and paid plans are available if you need more.	Free — listed in this directory as a free tool, with no paid plan required to use it.	Free — listed in this directory as a free tool, with no paid plan required to use it.
Focus areas	api, api management, gateway, open source	load testing, api, open source	headless cms, api, self hosted, open source	image processing, api, open source
Official site	fusio-project.org	artillery.io	getcockpit.com	flyimg.io
Directory status	Listed	Listed	Listed	Listed

Side-by-side from each listing's own directory data. Full alternative cards are below.

About the Developer Tools category

Editors, platforms, and services developers rely on to build and ship software. The Developer Tools category on Tools Hub currently lists 1164 tools. Alongside Fusio, it includes Para, GO Feature Flag, Eclipse Che, JupyterLab.

FreeDeveloper Toolsapiapi-managementgatewayopen-source

Alternatives to Fusio

Tools in the same Developer Tools category that share focus areas with Fusio — worth comparing before you commit:

Developer Tools

Artillery

Load testing toolkit for APIs and services

Freemiumload-testingapiopen-source

Developer Tools

Cockpit

Self-hosted, API-first headless CMS with an open-source MIT core

Freeheadless-cmsapiself-hostedopen-source

Developer Tools

Flyimg

Effortless image optimization API for your business

Freeimage-processingapiopen-source

Developer Tools

GoModel

Open-Source AI Gateway with Workflows, Aliases, and Usage Tracking

Freeai-gatewayllmopen-sourceself-hosted

Developer Tools

Gotenberg

A Docker-based API for PDF conversion

Freepdfapiconversiondocker

Developer Tools

Graphweaver

Data everywhere, instant GraphQL — turn many data sources into one API.

Freegraphqlapitypescriptopen-source

More in Developer Tools

Comparing tools in the Developer Tools category? These related listings are worth a look: Para — A general-purpose, open-source backend for the cloud; GO Feature Flag — Open-source feature flags built on OpenFeature; Eclipse Che — Run your favorite IDE on Kubernetes.