AgentAuth is a managed authentication layer built by Composio, purpose-built for AI agents that need to act on behalf of users across third-party applications. Rather than requiring developers to implement and maintain OAuth flows, token refresh cycles, and credential storage for each integration, AgentAuth centralizes all of that into a single SDK and hosted service. The platform supports over 250 applications (and Composio's broader platform covers 500+ toolkits), spanning CRMs, communication tools, developer platforms, productivity suites, and ticketing systems. Supported auth protocols include OAuth 2.0, API keys, JWT, and Basic Auth. Once a user authenticates, AgentAuth stores their credentials as a 'connected account' scoped to that user's identity, so the same agent code can serve thousands of users with complete multi-tenant isolation. AgentAuth handles the full token lifecycle automatically: access token refresh via refresh token rotation (old tokens are immediately invalidated on each rotation), scoped permission enforcement, and an audit trail per user action. This design satisfies compliance requirements: Composio holds SOC 2 Type 2 and ISO 27001 certifications, with all data encrypted in transit and at rest. The authentication layer integrates directly with major agentic frameworks including LangChain, CrewAI, LlamaIndex, and 15+ others. Developers pass a ready-to-use, typed tool set for each connected app directly into their LLM calls, eliminating manual API wiring. Composio also exposes AgentAuth via an MCP server, making it accessible to any MCP-compatible agent runtime. Composio positions AgentAuth as the authentication component of its broader agent tooling platform. The same connection system that powers AgentAuth also backs Composio's tool execution, action catalog, and trigger systems, so teams adopting it get a unified infrastructure layer rather than a standalone auth SDK. Key features: - OAuth 2.0, API key, JWT, and Basic Auth support across 250+ integrated apps - Per-user connected accounts with full multi-tenant isolation - Automatic access token refresh with refresh token rotation - SOC 2 Type 2 and ISO 27001 compliance with encryption at rest and in transit - Integrations with LangChain, CrewAI, LlamaIndex, and 15+ agentic frameworks - MCP server support for MCP-compatible agent runtimes - Scoped permission enforcement limiting agent access to only what each user approved - Audit trail per user action for compliance traceability
Free tier: 20,000 tool calls/month. Paid: $29/month (200,000 calls, +$0.299/1k overage) and $229/month (2,000,000 calls, +$0.249/1k overage). Enterprise: custom pricing with VPC/on-premise options. AgentAuth is included in Composio platform pricing, not separately itemized.