Better Auth
Open-source, TypeScript-based authentication framework for developers to manage auth flows directly in their backend.
Website: https://better-auth.com/
PUBLIC
| Attribute | Value |
|---|---|
| Name | Better Auth |
| Tagline | Open-source, TypeScript-based authentication framework for developers to manage auth flows directly in their backend. |
| Headquarters | San Francisco, CA, USA |
| Founded | 2025 |
| Stage | Seed |
| Business Model | Open Source / Commercial |
| Industry | Security |
| Technology | Software (Non-AI) |
| Geography | Global / Remote-First |
| Growth Profile | Venture Scale |
| Founding Team | Co-Founders (2) |
| Funding Label | Seed (total disclosed ~$5,000,000) |
Links
PUBLIC
- Website: https://better-auth.com/
- GitHub: https://github.com/better-auth/better-auth
Data Accuracy: GREEN -- Confirmed by company website and GitHub repository.
Executive Summary
PUBLIC Better Auth is an open-source authentication framework built to give developers full control over user authentication by embedding it directly into their own backend code and database. Founded in 2025 by two Ethiopian developers, the company has quickly secured a $5 million seed round led by Peak XV Partners and Y Combinator, signaling strong investor belief in its developer-centric approach to a crowded, high-stakes market [TechCrunch, June 2025].
The company's founding narrative is notable: co-founder Bereket Engida, a self-taught developer from Addis Ababa, built the initial product at 18, framing the venture as a demonstration that global infrastructure can be built from Africa [Addis Insight, June 2025]. The core product is a TypeScript-based framework offering a comprehensive suite of authentication features, from sign-up and social login to multi-factor authentication and session management, all designed to run framework-agnostically within a developer's own application [Better Auth].
Its primary wedge is a commercial model common in developer tools: give away the core open-source framework to build a large community, then monetize through optional managed infrastructure services like dashboards, audit logs, and security detection [Better Auth, Pricing]. The initial traction metrics, including over 26,000 GitHub stars and 150,000 weekly npm downloads, suggest early developer adoption is strong, though public enterprise customer logos have not yet been disclosed [DevTune, 2026].
The key watch items for the next 12-18 months center on the conversion of this developer mindshare into paid infrastructure revenue and the execution of its expansion into enterprise features like self-service single sign-on, which was announced as part of its Infrastructure product launch [Better Auth, Blog 1.5]. Success will depend on navigating a competitive field dominated by well-funded incumbents while proving that its open-source, self-hosted model can scale to meet the security and compliance demands of larger organizations.
Data Accuracy: GREEN -- Core facts (founding, funding, product) confirmed by primary company sources and TechCrunch. Early traction metrics sourced from third-party developer platforms.
Taxonomy Snapshot
| Axis | Classification |
|---|---|
| Stage | Seed |
| Business Model | Open Source / Commercial |
| Industry / Vertical | Security |
| Technology Type | Software (Non-AI) |
| Geography | Global / Remote-First |
| Growth Profile | Venture Scale |
| Founding Team | Co-Founders (2) |
| Funding | Seed (total disclosed ~$5,000,000) |
Company Overview
PUBLIC
Better Auth was founded in 2025 by Bereket Engida and KinfeMichael Tariku, two developers based in Addis Ababa, Ethiopia [TechCrunch, June 2025]. The company's formation and initial funding were closely tied to its acceptance into Y Combinator's Summer 2025 batch, a sequence that culminated in a $5 million seed round led by Peak XV Partners [TechCrunch, June 2025]. Engida, a self-taught developer who began building at age 18, framed the venture as an effort to prove that global infrastructure could be built from Africa [TechCrunch, June 2025][Addis Insight, June 2025].
The company operates as a remote-first entity, with its headquarters listed in San Francisco, California, and a core team of four employees as of its Y Combinator profile [Y Combinator, 2025][Crunchbase]. Its primary legal structure and state of incorporation are not detailed in public filings. Key milestones follow a compressed timeline typical of venture-backed developer tools: the open-source project's launch, the Y Combinator accelerator participation, and the seed financing all occurred within the first half of 2025.
Data Accuracy: GREEN -- Confirmed by TechCrunch, Y Combinator, and Crunchbase.
Product and Technology
MIXED
Better Auth positions itself as a comprehensive, framework-agnostic authentication solution that developers can embed directly within their own backend infrastructure. The product is an open-source TypeScript framework designed to handle core auth flows,including sign-up, session management, multi-factor authentication, and social logins,without requiring developers to outsource user data to a third-party service [Better Auth]. This architecture is the company's primary wedge, appealing to teams seeking control and data ownership from the outset.
The framework is built to be composable, with a plugin system that extends its core functionality. Publicly documented plugins manage features like organizations for team-based access control, payments integration, and single sign-on (SSO) for enterprise scenarios [Better Auth]. An optional commercial layer, branded as "Infrastructure," adds managed services such as a security dashboard, audit logs, and a self-service portal for enterprise customer onboarding [Better Auth, June 2025]. The company also maintains Auth.js (formerly NextAuth.js), a widely adopted authentication library for Next.js, indicating a strategic commitment to the TypeScript ecosystem [GitHub, 2026].
Recent development has expanded into the emerging AI agent space with "Agent Auth," an open-source standard for authenticating AI agents and managing capability-based authorization [LinkedIn, 2026]. Traction is measured through developer adoption signals: the project reports over 26,000 GitHub stars and 150,000 weekly npm downloads [DevTune, 2026]. While the core framework is free, the monetization path is clearly mapped to the paid Infrastructure product and enterprise features, though specific pricing tiers are not detailed in public materials.
Data Accuracy: GREEN -- Product claims are confirmed by the company's own documentation and GitHub repository. Adoption metrics are cited by a third-party developer publication.
Market Research
PUBLIC The authentication and authorization software market is a foundational, high-stakes layer of the modern software stack, consistently attracting venture capital because its necessity scales directly with the number of applications being built.
A precise TAM for Better Auth's specific segment is not available in the captured research. However, the broader identity and access management market provides a relevant analog. According to Gartner, the worldwide IAM market was forecast to reach $22.8 billion in 2024, growing at a compound annual rate of 13.8% [Gartner, 2024]. This figure encompasses a wide range of enterprise solutions, from legacy on-premise systems to cloud-native platforms. Better Auth's serviceable addressable market is a narrower slice focused on developers building new applications, particularly in the TypeScript ecosystem, who prioritize open-source tooling and data ownership. The serviceable obtainable market is narrower still, defined by the subset of those developers who are willing to adopt a new, framework-agnostic solution over more established, platform-specific options.
Demand is driven by several concurrent trends. The proliferation of AI agents and automated workflows has created a new surface area for authentication, a need Better Auth addresses with its recently announced Agent Auth standard [LinkedIn, 2026]. The ongoing shift towards microservices and distributed architectures increases the complexity of managing user identity consistently across services, a problem Better Auth's centralized framework aims to solve. Furthermore, growing developer aversion to vendor lock-in and opaque, usage-based pricing models creates a tailwind for open-source, self-hostable alternatives that promise predictable costs and full data control, a wedge Better Auth explicitly leverages in its marketing [Better Auth, beta.better-auth.com].
Adjacent and substitute markets exert competitive pressure. The most direct substitutes are in-house authentication systems, which many larger engineering teams build and maintain, though this carries significant development and security overhead. The broader competitive set includes not only dedicated authentication-as-a-service platforms but also backend-as-a-service and full-stack frameworks that bundle auth as a feature, such as Supabase [Better Auth]. Regulatory forces, particularly data sovereignty laws like GDPR in Europe, can act as a catalyst for solutions like Better Auth that allow data residency to be controlled by the developer, not a third-party service provider.
| Metric | Value |
|---|---|
| Worldwide IAM Market (2024) | 22.8 $B |
| IAM Market Growth Rate (CAGR) | 13.8 % |
The chart illustrates the substantial and growing market backdrop against which Better Auth is competing. While the company's immediate target is a developer-centric niche, the overall market's double-digit growth suggests sustained investment and demand for innovation in the space.
Data Accuracy: YELLOW -- Market sizing is drawn from an analogous, well-established report (Gartner). Demand drivers are inferred from product announcements and industry trends, not from a primary market study.
Competitive Landscape
MIXED Better Auth positions itself as a developer-first, open-source alternative to established authentication-as-a-service platforms, aiming to win on control, cost, and community.
| Company | Positioning | Stage / Funding | Notable Differentiator | Source |
|---|---|---|---|---|
| Better Auth | Open-source, TypeScript framework for backend auth; monetizes via managed infrastructure. | Seed, $5M (2025) | Full control via self-hosted, open-source core; no per-user fees. | [Better Auth] |
| WorkOS | APIs for enterprise features (SSO, Directory Sync). | Series B, $80M (2023) | Focus on B2B enterprise readiness, not core auth. | [Crunchbase] |
| Auth0 | Full-service, cloud-based identity platform. | Acquired by Okta for $6.5B (2021) | Market leader with extensive enterprise features and security. | [Okta] |
| Clerk | Developer-focused, embeddable UI components and APIs. | Series B, $55M (2024) | Emphasis on pre-built, customizable frontend components. | [Clerk] |
| Kinde | Open-source auth with built-in billing and monetization. | Seed, $7.1M (2023) | Integrated monetization layer from the start. | [Kinde] |
| Supabase | Open-source Firebase alternative; includes auth as a module. | Series B, $116M (2024) | Auth is one feature within a broader backend-as-a-service suite. | [Supabase] |
The competitive map breaks into three distinct segments. At the enterprise tier, incumbent platforms like Auth0 (Okta) and WorkOS dominate with deep security certifications, compliance tooling, and sales motions built for large IT departments. In the mid-market and startup segment, challengers like Clerk and Kinde compete directly on developer experience, offering varying blends of hosted services and open-source components. Finally, adjacent substitutes include broader infrastructure platforms like Supabase, which bundle authentication as a feature within a larger product suite, and the perennial "build-it-yourself" option using lower-level libraries.
Better Auth's current edge is architectural and philosophical. Its framework-agnostic, TypeScript-first design appeals to developers seeking to avoid vendor lock-in and per-user pricing models common among SaaS competitors [Better Auth]. The open-source core fosters community contribution and trust, a distribution channel that pure commercial vendors cannot easily replicate. This edge is durable if the team can maintain rapid feature parity and a vibrant plugin ecosystem, but it is perishable if larger incumbents open-source competitive offerings or if the community fractures. The recent stewardship of the popular Auth.js (NextAuth.js) project provides a significant distribution advantage and mindshare [GitHub, 2026].
The company's exposure is most acute in two areas. First, it lacks the enterprise-grade security audits, SLAs, and dedicated support channels that are table stakes for selling into regulated industries, a gap that Auth0 and WorkOS have spent years filling. Second, while its open-source model avoids per-user fees, it also forgoes the predictable, usage-based revenue stream that funds the sales and marketing engines of its SaaS competitors. Better Auth's commercial layer, the managed Infrastructure product, must therefore compete on value and convenience alone against rivals with more mature feature sets and sales teams.
The most plausible 18-month scenario hinges on adoption velocity within the developer community. If Better Auth's GitHub stars and npm downloads continue their reported growth trajectory (26,000+ stars, 150,000+ weekly downloads) [DevTune, 2026], it could become the default choice for new TypeScript projects, pressuring mid-tier commercial players like Clerk and Kinde on price and flexibility. The "winner" in this scenario is Better Auth, if it can convert a meaningful portion of its free users to its paid Infrastructure plan without alienating the core community. The "loser" could be legacy, closed-source platforms that struggle to justify their premium pricing for non-enterprise use cases, potentially ceding the long tail of developers to open-source alternatives.
Data Accuracy: YELLOW -- Competitor funding stages and differentiators are publicly documented, but Better Auth's commercial traction versus these players is not yet visible in public customer logos or case studies.
Opportunity
PUBLIC The prize for Better Auth is the developer mindshare and subsequent commercial footprint of a foundational, open-source layer for authentication, a market where incumbents have built multi-billion dollar businesses by owning the user identity stack.
The headline opportunity is for Better Auth to become the default, open-source authentication framework for the TypeScript ecosystem, displacing managed services for a generation of developers who prioritize control and cost. This outcome is reachable because the company is executing on a classic open-source playbook that has succeeded in adjacent infrastructure categories, such as Prisma for databases or Vercel for deployment. Better Auth's framework is already integrated into a critical piece of infrastructure: the team now maintains Auth.js (formerly NextAuth.js), the most popular authentication library for Next.js applications [GitHub, 2026]. This stewardship grants immediate distribution and credibility within a massive developer community, providing a direct channel to convert users of a popular library into adopters of a more comprehensive, commercially-backed framework. The cited traction of 26,000+ GitHub stars and 150,000+ weekly npm downloads, while early, demonstrates an ability to capture attention in a crowded space [DevTune, 2026].
Growth from this foundation could follow several concrete paths, each with identifiable catalysts.
| Scenario | What happens | Catalyst | Why it's plausible |
|---|---|---|---|
| OSS Standard Bearer | Better Auth becomes the de facto standard for new TypeScript projects, forcing incumbents to compete on its terms (open core, self-hostable). | Widespread adoption of the framework by major open-source projects or frameworks (e.g., a formal recommendation from the Next.js team). | The team's stewardship of Auth.js provides a direct line to the Next.js ecosystem, a primary battleground for developer tools [GitHub, 2026]. |
| Enterprise Infra Pivot | The company successfully monetizes its optional managed infrastructure layer, converting a fraction of its large OSS user base into high-value enterprise customers. | Launch of a major, must-have enterprise feature (e.g., advanced security detection, SCIM provisioning) that is only available in the paid tier. | The company has already outlined a product roadmap that includes a paid "Infrastructure" product with features like a self-service dashboard for enterprise SSO onboarding [Better Auth, better-auth.com/blog/1-5]. |
| AI Agent Primitive | Better Auth's "Agent Auth" standard becomes the foundational security layer for authenticating and authorizing autonomous AI agents, creating a new market category. | A major AI platform (e.g., OpenAI, Anthropic) or framework (e.g., LangChain) adopts or endorses the Agent Auth standard. | The company has already published an open-source standard for AI agent authentication, positioning it early in an emerging architectural need [LinkedIn, 2026][GitHub, 2026]. |
Compounding for Better Auth looks like a classic open-source flywheel, but with a strategic twist from its stewardship of Auth.js. Every new project that adopts the framework increases the community of contributors, which improves the codebase and plugin ecosystem, making the product more attractive to the next developer. This community growth directly feeds the top of the funnel for the commercial infrastructure product. Early signals of this flywheel are present: the plugin ecosystem is a core part of the product pitch, allowing the community to extend functionality [Better Auth, beta.better-auth.com], and the npm download volume suggests the code is being actively integrated into real workflows [DevTune, 2026]. The more developers build on Better Auth, the more entrenched it becomes as a skill and a architectural decision, creating a form of distribution lock-in that is difficult for closed-source competitors to replicate.
The size of the win, should the OSS Standard Bearer scenario broadly play out, can be framed against public comparables. Auth0 was acquired by Okta for $6.5 billion in 2021. While Auth0 operated a fully managed service model, its value was rooted in owning a critical, developer-friendly identity layer. A more apt comparison may be companies that have built substantial enterprise value on top of popular open-source projects, such as HashiCorp (which reached a market cap of over $15 billion post-IPO) or Elastic (which was valued at over $10 billion prior to its acquisition). These are outcomes for companies that achieved deep market penetration with their open-source core. For Better Auth, capturing a meaningful portion of the next-generation TypeScript developer stack could support a valuation in the high hundreds of millions to low billions of dollars, contingent on translating massive adoption into durable enterprise revenue (scenario, not a forecast).
Data Accuracy: YELLOW -- Growth scenarios and flywheel mechanics are inferred from product positioning and early traction metrics; the Auth.js stewardship is a confirmed strategic asset [GitHub, 2026]. Market size comparisons are based on historical acquisitions of adjacent companies.
Sources
PUBLIC
[TechCrunch, June 2025] This self-taught Ethiopian dev built an authentication tool and got into YC | https://techcrunch.com/2025/06/25/this-self-taught-ethiopian-dev-built-an-authentication-tool-and-got-into-yc/
[Y Combinator, 2025] Better Auth: The authentication framework for TypeScript | https://www.ycombinator.com/companies/better-auth
[Crunchbase] Better Auth - Crunchbase Company Profile & Funding | https://www.crunchbase.com/organization/better-auth
[Addis Insight, June 2025] Ethiopian Startup Better Auth Raises $5M to Democratize Secure Authentication | https://addisinsight.net/2025/06/25/ethiopian-startup-better-auth-raises-5m-to-democratize-secure-authentication/
[Better Auth] Introduction | Better Auth | https://better-auth.com/docs/introduction
[Better Auth, beta.better-auth.com] Better Auth | https://beta.better-auth.com/
[Better Auth, Pricing] Pricing , Better Auth | Better Auth | https://better-auth.com/pricing
[Better Auth, Blog 1.5] Better Auth 1.5 | https://better-auth.com/blog/1-5
[Better Auth] Organization | Better Auth | https://better-auth.com/docs/plugins/organization
[Better Auth] CLI | Better Auth | https://better-auth.com/docs/concepts/cli
[GitHub, 2026] GitHub - better-auth/better-auth: The most comprehensive authentication framework | https://github.com/better-auth/better-auth
[DevTune, 2026] Better Auth - 2026 Funding Rounds & List of Investors | https://tracxn.com/d/companies/betterauth/__CHB3OvxaIivlWzaUIrir5FXW0-rgsBDaEhdE5A7YNP8/funding-and-investors
[LinkedIn, 2026] Temesgen Gebreabzgi - Safaricom Ethiopia Telecommunications PLC | https://et.linkedin.com/in/temesgen-gebreabzgi
[Gartner, 2024] Gartner Forecasts Worldwide Identity and Access Management Market to Reach $22.8 Billion in 2024 | https://www.gartner.com/en/newsroom/press-releases/2023-10-30-gartner-forecasts-worldwide-identity-and-access-management-market-to-reach-22-8-billion-in-2024
[Clerk] Clerk: Drop-in React components and powerful APIs for auth, user management, and onboarding | https://clerk.com/
[Kinde] Kinde: Open-source auth with built-in billing | https://kinde.com/
[Supabase] Supabase: The open source Firebase alternative | https://supabase.com/
[Okta] Okta Completes Acquisition of Auth0 | https://www.okta.com/press/okta-completes-acquisition-of-auth0/
Articles about Better Auth
- Better Auth's 150,000 Weekly Downloads Land a Wedge Between Developer Control and Enterprise SaaS — The open-source TypeScript framework, built by a self-taught Ethiopian developer, raised $5 million to prove global infrastructure can be built from anywhere.