List of the Top Free AI Agent Authentication Platforms in 2026

Auth0 adopts a contemporary method for managing identity, allowing organizations to ensure secure access to applications for all users. It offers a high degree of customization while remaining both straightforward and adaptable. Handling billions of login transactions every month, Auth0 prioritizes convenience, privacy, and security, enabling customers to concentrate on their innovative efforts. Furthermore, Auth0 facilitates quick integration of authentication and authorization processes across web, mobile, and legacy applications, featuring advanced Fine Grained Authorization (FGA) that expands the capabilities of traditional role-based access control, thereby enhancing security measures overall.

A single platform offers endless opportunities to engage with both your customers and staff. Any application can be made secure with authentication capabilities. Okta enables you to swiftly develop experiences that are both secure and enjoyable. By integrating Okta's Customer ID products, you can assemble the necessary framework to ensure security, scalability, and dependability. Safeguard and empower your employees, contractors, and partners effectively. Okta’s workforce identification solutions ensure that your employees remain protected regardless of their location. You will be equipped with essential tools to streamline cloud transitions and facilitate hybrid work environments. Trusted by organizations worldwide, Okta is committed to safeguarding workforce identities while promoting seamless connectivity across various platforms. This reliability and trust make Okta a go-to choice for businesses aiming to enhance their security infrastructure.

Clerk is a complete user management and authentication platform built for modern businesses. It offers secure sign-up, sign-in, multi-factor authentication (MFA), user profiles, and organization management out of the box. With seamless integration for popular frameworks like Next.js, React, and Vue, Clerk enables faster deployment, reduces engineering costs, and improves user experience. Enterprise-grade features like SSO, audit logs, and role-based access control (RBAC) ensure Clerk can scale with growing security and compliance needs. Designed for startups to large enterprises, Clerk helps businesses launch faster without compromising on security or flexibility.

Descope serves as a CIAM platform designed specifically for developers and IT teams. With our intuitive no-code workflow builder and SDKs, customers can effortlessly design seamless and secure user journey flows for every interaction. By taking care of authentication methods, session management, and risk management, Descope empowers developers to focus more on their primary app projects. The platform simplifies the management of users, tenants, RBAC, SCIM provisioning, and identity federation, ensuring a hassle-free experience. Through Descope, customers can enhance user experience with passwordless authentication, bolster security with risk-based MFA, and unify user identities across all applications used in business, ultimately creating a more streamlined operational environment. This comprehensive approach not only improves security but also fosters greater user satisfaction and trust.

A production agent often needs the same access as the person who asked for the work. Scalekit supplies that access. It is the gateway those agents call, over MCP, when they have to act inside a customer's own software. The Free plan costs $0 and covers 10,000 tool calls plus 10,000 trigger events each month. Growth costs $99 a month for 100,000 tool calls, with extra calls at $0.50 per thousand. Enterprise is quoted. On that plan the Scalekit dashboard can use SSO and SCIM, and a HIPAA BAA is available. Hosted Scalekit runs in Los Angeles or in Frankfurt. Adding EU residency to Growth costs $99 a month. Larger deployments can sit in the customer's VPC, or on infrastructure the customer runs, with air-gapped installs supported. The trust center lists SOC 2 Type II and ISO 27001. Bartłomiej Krupa, a developer at Brand24, said: "We wanted our users to be able to ask their AI tools the same questions they'd ask Brand24 directly. Scalekit let us ship that without turning our engineering team into OAuth specialists." Under the hood, a request for Salesforce, Gmail, Slack, Notion, HubSpot, Jira, GitHub, or another of the 600+ connectors is matched to that person's stored login, allowed or refused, and sent. The catalog covers 35,000+ tools. Logins are encrypted with AES-256 and kept per tenant. The agent receives a result, not the secret. The same path works for code written with Anthropic, OpenAI, LangChain, Google ADK, Vercel AI, or Mastra.

Most companies write permission checks straight into each application, which makes access hard to change, hard to review and hard to prove to an auditor. Cerbos moves those rules into one authorization management platform that covers applications, API gateways, service meshes, data platforms and AI agents. Teams describe who can do what in short policy files that people outside engineering can read. Role, attribute and relationship rules (RBAC, ABAC, ReBAC and PBAC) live side by side. When a request comes in, Cerbos pulls the current roles and attributes from Okta, Microsoft Entra ID, your databases or internal APIs, then checks the request against the policy. A change to the rules ships after its tests pass, with no application release. What each team gets For engineering, one API call takes the place of permission logic spread across services, with SDKs in eight languages including Go, Java, Python and JavaScript. For identity teams, a single place to manage access for employees, customers, services and AI agents, next to the identity provider they already run. For product teams, custom roles and per-tenant permissions for enterprise customers without building them one customer at a time. For security teams, every AI agent tool call goes through the same policy check as a person, so agent rollouts can be approved with controls in place. Each check is recorded along with the policy that applied, which gives SOC 2, ISO 27001 and HIPAA audits a clear trail. Deploy it as a hosted service, in your own cloud or fully air-gapped. Customers running Cerbos in production include Utility Warehouse, 9fin and Salesroom.

Google Cloud Agent Identity assigns each AI agent a distinct identity that is cryptographically validated, paired with managed X.509 credentials that empower the agent to authenticate itself with various Google Cloud resources. The identity and credential management APIs aid in agent authentication, permit access to an array of tools and services, and enable the management of credentials for user-delegated OAuth flows. Administrators can enforce IAM controls, including principal access boundaries and service perimeters, and they can also examine audit logs that distinctly separate actions performed by agents from those executed on behalf of users. This service is designed to work seamlessly with agent workloads on platforms such as the Gemini Enterprise Agent Platform Runtime (Agent Runtime), Gemini Enterprise, Cloud Run, and Google Kubernetes Engine. With their credentials, agents can connect to cloud resources, external APIs, and servers compliant with the Model Context Protocol. Nevertheless, the availability and specific authentication flows supported may differ depending on the hosting service. This adaptability empowers organizations to customize their security measures and access protocols, ensuring they meet their specific operational needs while maintaining a robust security posture. Furthermore, as organizations leverage these capabilities, they can enhance their overall efficiency and streamline their operational processes.

Logto serves as a contemporary alternative to Auth0, tailored for software as a service (SaaS) and application developers, making it an excellent option for both expanding businesses and individual users. It provides a comprehensive identity management solution with SDKs that facilitate seamless authentication processes. Users can choose from a variety of sign-in options, including social logins and passwordless methods, while having the ability to personalize UI components to align with their branding. The platform is built with a ready-to-use infrastructure, eliminating the necessity for additional setup. It also includes a management API that is immediately accessible, along with flexible connectors designed for customization and scalability, supporting SAML, OAuth, and OIDC protocols. Logto is equipped for enterprise needs, featuring role-based access control (RBAC), organizational capabilities for multi-tenant applications, user management tools, audit logs, single sign-on (SSO), and multi-factor authentication (MFA), ensuring strong security and compliance for its users. Additionally, its user-friendly interface and extensive support resources make it an ideal choice for developers seeking to enhance their application's authentication experience.

Composio is a powerful platform that transforms AI agents from simple conversational tools into fully functional systems capable of executing complex workflows. It provides seamless integration with over 1,000 applications, including popular tools like Slack, Gmail, GitHub, Notion, and more. The platform handles authentication automatically, managing OAuth flows, API keys, and permissions without requiring manual setup. Composio enables agents to dynamically select and execute the right tools based on user intent, improving efficiency and accuracy. It also offers secure, sandboxed environments where workflows can run safely, ensuring isolation and reliability. Developers can build multi-step workflows, automate processes, and execute tasks in parallel for greater productivity. The platform supports context-aware sessions, allowing agents to retain state and continue tasks without restarting. Composio is model-agnostic, giving developers the freedom to switch between AI models without disrupting their workflows. Its infrastructure is designed for scalability, supporting enterprise-grade use cases and high-volume operations. With built-in security features and compliance standards, it ensures safe handling of data and operations. By simplifying integrations and execution, Composio reduces development overhead and accelerates deployment. Ultimately, Composio enables developers to build intelligent, action-oriented AI agents that can operate across the entire software ecosystem.

Nango is recognized as a top-tier product integration platform that allows developers to seamlessly connect with over 300 APIs in just hours. By providing a range of pre-built integrations, developer tools, and user-friendly components, it alleviates the challenges associated with API interactions. With Nango, developers retain full control over their code and gain direct access to external APIs, which allows for the creation of customized integrations that align with their clients' unique demands, similar to the capabilities of an internal development team. The platform is equipped with comprehensive support for various types of authorization and API nuances, offering a consistent interface that aligns with your own data structures while delivering excellent user experiences. Each tool provided is specifically tailored to individual APIs, ensuring efficient handling of pagination, rate limiting, and other crucial aspects. Additionally, Nango features an AI co-pilot trained on a wide array of integrations, aiding in the development of personalized solutions. For those seeking expert assistance, Nango facilitates connections with API specialists and provides a service where their engineers can develop custom integrations designed to meet distinct needs. This all-encompassing strategy guarantees that developers are equipped with the necessary tools and support to thrive in their integration endeavors while fostering innovation through enhanced collaboration.

Arcade.dev is an innovative platform tailored for the execution of AI tool calls, enabling AI agents to perform real-world tasks like sending emails, messaging, updating systems, or triggering workflows via user-authorized integrations. Acting as a secure authenticated proxy that adheres to the OpenAI API specifications, Arcade.dev facilitates models' access to a variety of external services such as Gmail, Slack, GitHub, Salesforce, and Notion, utilizing both ready-made connectors and customizable tool SDKs while proficiently managing authentication, token handling, and security protocols. Developers benefit from a user-friendly client interface—arcadepy for Python or arcadejs for JavaScript—that streamlines the processes of executing tools and granting authorizations, effectively removing the burden of managing credentials or API intricacies from application logic. The platform boasts impressive versatility, enabling secure deployments across cloud environments, private VPCs, or local setups, and includes a comprehensive control plane for managing tools, users, permissions, and observability. This extensive management framework guarantees that developers can maintain oversight and control, harnessing AI's capabilities to automate a wide range of tasks efficiently while ensuring user safety and compliance throughout the process. Additionally, the focus on user authorization helps foster trust, making it easier to adopt and integrate AI solutions into existing workflows.

Hawcx is a cutting-edge cloud-based authentication platform that empowers organizations to bolster security for AI agents while providing passwordless sign-in capabilities for both employees and customers. This innovative solution uniquely links AI agents to specific individuals, guaranteeing that every interaction with the tools adheres to defined policies, while also allowing for the routing of sensitive tasks requiring human oversight, recording decisions made, and facilitating the identification and cancellation of agents when needed. For applications serving both the workforce and consumers, Hawcx offers device-bound, phishing-resistant authentication that incorporates verification processes along with additional security protocols tailored to the assessed risks. Development teams can effortlessly embed passwordless authentication into their applications using web, mobile, and server SDKs, and enterprise logins can be aligned with existing identity management frameworks. Addressing a wide array of needs, the platform is indispensable for security and risk management experts, developers focused on platforms and AI, as well as organizations eager to deploy agents or build web and mobile applications that demand thorough access control and meticulous action tracking. Furthermore, by addressing the increasing necessity for strong security measures in digital spaces, Hawcx positions itself as a vital tool in the evolving landscape of technology.

Hush Security provides a robust platform aimed at the recognition and oversight of AI agents alongside other non-human identities. This innovative solution proficiently outlines agent identities, their credentials, permissions, tools, and links to infrastructure, empowering security and identity teams to thoroughly assess risks and implement essential policy measures. Targeted at businesses employing AI agents, the offering features functionalities such as agent inventories, ownership attribution, activity auditing, access governance, and policy enforcement. Hush Security guarantees that organizations retain control over agent permissions, reduce reliance on static credentials, and achieve visibility across both agent and developer environments, including platforms like Claude Code, Cursor, Codex, and Microsoft Foundry. Moreover, teams can utilize the platform to identify agents and credentials, evaluate access levels, set scoped permissions, and monitor agent activities effectively. The free version caters to organizations with up to 25 protected agents, 50 access policies, and 10,000 discovered identities, while its premium plans are tailored for broader applications, making it a flexible solution for diverse organizational requirements. This ability to scale ensures that as organizations expand, their security and governance measures can adapt to evolving needs, thereby enhancing their overall operational resilience. Ultimately, Hush Security positions itself as a vital tool for organizations looking to navigate the complexities of AI agent management and security.

Stytch is a cutting-edge authentication platform tailored for developers, enabling seamless user onboarding, authentication, and engagement via powerful APIs. By implementing flexible solutions that remove the reliance on passwords, you can enhance both security and user satisfaction. We take care of the backend infrastructure, allowing you to focus on refining your product offerings without distraction. Our SDKs are designed with customizable templates that can be modified to reflect your unique branding elements, including colors, fonts, and logos, ensuring a smooth and cohesive onboarding and authentication experience for users while staying true to your brand identity—eliminating the need to design interfaces from the ground up. For those desiring more extensive customization, our direct API integration strikes a perfect balance between developers' requirements and user experience, allowing for quick, secure, and user-friendly passwordless authentication methods. The integration process is made efficient and straightforward through our comprehensive documentation, which allows you to dedicate your attention to what matters most in your project. As you navigate this process, you will discover that our platform is crafted to effectively support your growth and success, providing the tools necessary for scaling your applications seamlessly. Ultimately, Stytch empowers developers to create engaging experiences that resonate with users while maintaining robust security practices.