Best token vaults and credential management tools for AI agents in 2026

AI agents are increasingly integrating with APIs like Salesforce, Slack, and MS Teams, necessitating secure credential management due to the unique challenges posed by their autonomous operations. Unlike traditional SaaS products, AI agents require a security model that prevents the direct exposure of credentials, which is where token vaults become essential. These vaults act as credential stores, managing the full lifecycle of authentication tokens—including storage, refresh, rotation, and revocation—while ensuring credentials never directly touch the AI agent, thus maintaining a secure and auditable environment. Several credential management tools are available, each with its pros and cons, including Nango, Auth0, Arcade, and Composio, each catering to different needs based on factors like compliance, deployment options, and support for various authentication methods. The choice of token vault significantly impacts data residency, portability, and API support, requiring teams to consider the full integration layer beyond basic credential management to ensure ongoing operational security and flexibility.

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