Keycard is an identity and access management platform designed for AI agents and agentic applications. The platform provides infrastructure to connect agents and applications to APIs, tools, and information through identity-based access controls. The system uses dynamic access tokens that are ephemeral and identity-attested, eliminating static secrets. These credentials can be revoked instantly and provide real-time, fine-grained access control verified at the edge. Keycard implements federated identity with distributed authorization, integrating with existing identity stacks including OIDC and workload identity. Authorization is enforced at the edge where actions occur for low-latency control across environments. The platform includes an agent-native data model that maps workloads, applications, users, and resources into logical, ephemeral zones for access management. These zones can be dynamically created or removed as needed. Developer SDKs are provided for integrating agents, enforcing access, and connecting to tools. The platform offers centralized policy and auditing capabilities with task-based policies and end-to-end auditing for accountability. Keycard supports ecosystem interoperability across MCP, A2A, and other standards, unifying identity, permissions, and compliance. The platform integrates with enterprise SSO, logging, and SIEM systems and is SOC2-compliant.