Open source


The open-source version of FireTail - code library only

Inline API call inspection and blocking functionality only
Unlimited APIs run on your infrastructure
Community Support
Full OSS license

Choose your plan duration

FireTail is licensed on a subscription basis. Subscriptions can last months or years. Discounts are available. Contact us for more information or to discuss options.

$ 0.00 USD
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What's included in the open-source plan?

FireTail is built on open-source principles. To that end, we want to make it possible for every developer to protect their APIs easily and for free. The open-source plan gives any developer, anywhere, free and unfettered access to the  FireTail code library for enforcing API security at runtime. Follow the getting started guides to learn how to download, include and distribute the library with your application.

If the below scenario describes your environment, get started today on protecting your APIs.

  • Code written in Python, using the OpenAPI (formerly Swagger) framework model
  • APIs are REST or GraphQL-based
  • Ability to follow developer documentation and code samples

Is this the right option for my company?

If you just want to ensure that your API are inspecting incoming calls for the most common attack vectors - namely unauthenticated calls, probing and enumeration attacks, and attempted malicious request parameters / payloads - then the open-source version of FireTail is for you.

What our clients say

"Easy to deploy"

We chose the agentless solution for our existing API estate. FireTail worked with us to tweak the CloudFormation for our deployment model. Our API events then gave us a quick and complete picture of our APIs and helped us find and eliminate API security challenges.

Paul Hadjy
CEO of Horangi
API events
"The next major attack surface"

APIs are the new port 80: an ubiquitous way organizations connect to the world. As such, securing APIs demands a novel, clean sheet of paper approach like Firetail.

Ted julian
Cybersecurity Founder & Investor
Years in cybersecurity
"A modern API security approach"

We like how FireTail is built for teams who take a modern approach to security, measuring and identifying issues right where they potentially are, as well as giving confidence that our APIs are secured as we expect them to be. Their software is fully transparent and integrates with our existing services. Their team was very helpful and responsive in getting it deployed into our APIs.

Philip Rees
CTO, Tidal Migrations
API calls/month
"API security aligned with the cloud"

We work with some of the most advanced and largest-scale enterprises in the world on their cloud security initiatives. Every single one has API security on their radar, and the FireTail approach aligns perfectly with how they are executing on security strategy.

Thomas Martin
Director of Chaos & Clarity at NephoSec
Cloud APIs monitored
"Innovation + ease of deployment = win"

I see a lot of technologies but when there is a real understanding of the importance of an effective and easy deployment combined with real innovation to meet a need... I get excited. It's why I'm a huge fan of FireTail and what they are doing.

Anthony Johnson
Managing Partner, Delve Risk
(Former F100 CISO)
Years building and running global cyber teams