Warrant

Authorization and Access Management APIswarrant.dev

Warrant was a Los Angeles-based developer-infrastructure company that provided Fine-Grained Authorization as a managed API, offering multi-language SDKs for embedding access control into applications. The company was acquired by WorkOS in 2024 and its product has been deprecated in favor of WorkOS FGA.

Company typePrivate
Founded2021
HeadquartersLos Angeles, United States
Headcount1–10
GTM typeB2B
OfferingSoftware

What Warrant does

Warrant was a developer-infrastructure company that provided Fine-Grained Authorization (FGA) as a managed API service. Founded in 2021 in Los Angeles by Aditya Kajla and Karan Kajla, the company targeted software developers and engineering teams that needed to implement role-based access control and permission management inside their applications without building custom authorization logic. Its core product was a cloud-hosted authorization API supported by SDKs across Go, Node.js, PHP, Python, Ruby, and .NET, distributed via GitHub repositories and self-service documentation.

The business model was subscription-based, recurring API usage with tiered access — a classic API-first, product-led growth motion aimed at mid-funnel developer adoption. GTM was executed through developer documentation, GitHub-hosted SDKs, and the warrant.dev portal. The company was small (1-10 employees) and raised a single $125,000 seed round from Y Combinator in August 2021; no further funding, customer logos, or revenue figures are disclosed in the source data.

In 2024, Warrant was acquired by WorkOS, an enterprise identity and developer infrastructure provider. Following the acquisition, the Warrant product was deprecated and its technology rebranded as WorkOS FGA (Fine-Grained Authorization). All Warrant SDKs (warrant-go, warrant-node, warrant-php, warrant-python, warrant-ruby) have been replaced by their WorkOS equivalents, the standalone warrant.dev domain now redirects users to WorkOS FGA, and the Warrant entity is end-of-life. The company no longer operates as an independent business.

Warrant firmographics

Firmographics

Name: Warrant
Website: https://warrant.dev
Company type: Private
Founded year: 2021
Operating status: Acquired
Headcount range: 1–10 employees
Short description: Warrant was a Los Angeles-based developer-infrastructure company that provided Fine-Grained Authorization as a managed API, offering multi-language SDKs for embedding access control into applications. The company was acquired by WorkOS in 2024 and its product has been deprecated in favor of WorkOS FGA.
Ownership category
akta.pro rank

Warrant industry classification

Industry

Product category: Authorization and Access Management APIs
NAICS: Computer Systems Design and Related Services (54151)
SIC: Services-Computer Programming, Data Processing, Etc. (7370), Services-Computer Programming Services (7371), Services-Prepackaged Software (7372)
akta.pro primary industry: Customer Permissioning & Consent Management (OAuth, scopes, revocation) (FSAGACAC)

Keywords

Authorization api
Fine-grained access control
Developer identity tools
Role-based access control
Permissions infrastructure

Where Warrant is headquartered

Location

Headquarters

HQ city: Los Angeles
HQ country: United States
HQ region: North America

Markets served

Warrant business model

Business model

GTM type: B2B
Offering type: Software
Cost components: Technology or R&D, Personnel, Infrastructure, Marketing or Sales, Operations

Revenue model

API/SDK Licensing: Warrant provided authorization as a service, offering API access and SDKs for integration. The revenue model was subscription-based API usage with tiered access levels.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Warrant product offering

Product offering

Core offering

Warrant provided a Fine-Grained Authorization (FGA) API that enabled software developers and engineering teams to embed permission checks, role-based access control (RBAC), and access management directly into their applications. The service was offered as a managed, cloud-hosted API with SDKs for Go, Node.js, PHP, Python, Ruby, and .NET. The product has since been deprecated and migrated into WorkOS FGA following acquisition by WorkOS.

Product overview

Warrant was a Fine-Grained Authorization product that has been deprecated and decommissioned. The product has been fully migrated to WorkOS FGA (Fine-Grained Authorization). All Warrant-specific SDKs, APIs, and documentation are now obsolete and users are directed to use WorkOS FGA equivalents instead.

Differentiator

Problem solved

Functional benefit

Products and services

Warrant Fine-Grained Authorization API (now WorkOS FGA) Cloud-hosted fine-grained authorization API that enabled software developers and engineering teams to add permission checks, role-based access control (RBAC), and access management to their applications. Offered with multi-language SDKs (Go, Node.js, PHP, Python, Ruby, .NET) and self-service documentation. Now superseded by WorkOS FGA following WorkOS's acquisition.

Companies that use Warrant

Customer profile

Segments1 record

Ideal customer profiles1 record

Warrant technology and API

Technology

Technology focussed Yes

API detail

Has API: Yes
API docs
API detail

Core technology

AI maturity

App detail

Feature1 record

Warrant partnerships and signals

Strategic signal

Partnerships

One partnership is on record.

WorkOScoreStrategic or Co-development Partner · 1 January 2024Warrant has been fully migrated and superseded by WorkOS FGA (Fine-Grained Authorization). WorkOS acquired and integrated Warrant's technology into its platform. The Warrant product has been deprecated and users are directed to use WorkOS FGA instead, including migrating to WorkOS SDKs.

Recent moves5 records

Expansion highlights1 record

Warrant competitors and assessment

Company assessment

Broad incumbents

Auth0 (Okta): Major identity platform offering authentication and authorization (including RBAC and fine-grained permissions) for application developers. Broad incumbent whose authorization capabilities overlap with Warrant's offering as part of a much larger identity stack.
Okta: Enterprise identity and access management leader. Now incorporates OpenFGA, making it a direct adjacent competitor to Warrant/WorkOS FGA for fine-grained authorization at scale.
WorkOS: Acquirer of Warrant and the company that now productizes the FGA capability as WorkOS FGA. WorkOS offers enterprise authentication and authorization infrastructure to B2B SaaS developers, overlapping directly with Warrant's developer-facing authorization use case.
AWS IAM: Identity and access management services from Amazon Web Services with fine-grained permissions APIs. Serves as a broad incumbent alternative for developers building authorization into cloud-native applications.

Direct peers

OpenFGA: Open-source fine-grained authorization service inspired by Google Zanzibar, now part of the Okta ecosystem. Offers a directly comparable FGA API service targeting developers building relationship-based access control.
Permit.io: Cloud-native authorization platform offering policy-based access control, audit logs, and SDKs for application developers. Directly comparable to Warrant's FGA-as-an-API positioning.
Oso: Offers an authorization-as-a-service platform and SDK (Polar language) for embedding RBAC, ReBAC, and ABAC into applications. Closely comparable to Warrant in targeting developers who need turnkey fine-grained authorization.
Cerbos: Provides fine-grained, externalized authorization as a managed service with SDKs and policy engines. Directly competes with Warrant's core offering of API-based fine-grained authorization for application developers.
Styra: Provides policy-as-code and authorization services for cloud-native applications. Comparable to Warrant as a developer-focused authorization platform, with broader enterprise policy management overlap.
Casbin: Open-source authorization library supporting RBAC, ABAC, and ReBAC models across many languages. Comparable to Warrant's SDK-driven approach to embedding authorization logic, though delivered as a library rather than a hosted service.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks5 records

Key highlights5 records

Customer concentration

Warrant financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Warrant leadership team

Management profile

Number of profiles

Profiles2 records

Warrant funding detail

Funding detail

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

Warrant M&A and investment

M&A and investment

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Warrant

What does Warrant do?

Is Warrant a public or private company?

Warrant is a private company. It is classified as corporate owned and is currently acquired.

When was Warrant founded?

Warrant was founded in 2021. It employs 1 to 10 people.

Where is Warrant based?

Warrant is headquartered in Los Angeles, United States, in the North America region.

How does Warrant make money?

One revenue line is on record: API/SDK Licensing.

Who are Warrant's main competitors?

Broad incumbents on record are Auth0 (Okta), Okta, WorkOS and AWS IAM. Direct peers are OpenFGA, Permit.io, Oso, Cerbos, Styra and Casbin.

Does Warrant have an API?

Yes. Warrant has been deprecated and migrated to WorkOS FGA (Fine-Grained Authorization). The WorkOS FGA API provides complete authorization functionality. The migration guide directs users to use WorkOS FGA API instead of Warrant API. Developer documentation is at workos.com/docs/reference/fga.

What industry is Warrant in?

Warrant's product category is Authorization and Access Management APIs. Its primary akta.pro industry code is FSAGACAC, Customer Permissioning & Consent Management (OAuth, scopes, revocation). Its NAICS code is 54151 and its SIC code is 7370.