Top 5 AI Agent Auth Tools in 2026
TL;DR: Composio for multi-tool agent workflows with managed auth. Nango if you want clean OAuth and nothing else. Merge Agent Handler for enterprise governance. Arcade for high-risk actions needing...
Source: DEV Community
TL;DR: Composio for multi-tool agent workflows with managed auth. Nango if you want clean OAuth and nothing else. Merge Agent Handler for enterprise governance. Arcade for high-risk actions needing just-in-time permission checks. WorkOS AuthKit if you want to build custom agent auth on proven infrastructure. Your AI agent can reason, plan, and write code. But the moment it tries to create a Jira ticket or send a Slack message on behalf of a user, it hits the same wall every production team hits: authentication. Agent auth is different from traditional app auth. Agents act on behalf of multiple users, touch several tools in a single request, and run continuously without someone typing a password. Static API keys and service accounts break fast. OAuth tokens expire. Permissions drift. These five tools solve the problem differently. Here is how they compare. Quick Comparison Feature Composio Arcade Nango Merge WorkOS Agent-first design Yes Yes No Partial No Managed OAuth Yes Yes Yes Yes Y
