Postman Passport: Secure API access for the Agentic Era

As the consumption of APIs by agents rises exponentially, security concerns around API key management and access have intensified due to the prevalent use of open and permissive API designs. This has led to widespread secret sprawl, with API keys often being stored insecurely across various files and systems, posing significant risks of leakage and theft. To address these challenges, Postman introduces Passport, a solution designed to enhance API security by using credential references instead of real API keys, thus eliminating direct exposure of sensitive information. This system employs a Secure Access Proxy within a user's virtual private cloud to manage credential resolution, ensuring that secrets remain within controlled environments and reducing the risk of accidental exposure. Additionally, Passport facilitates granular access control for both human users and agents, allowing for durable or ephemeral identities that are cryptographically proven, thereby minimizing the potential for unauthorized access. This approach transforms API consumption into a more secure and manageable process, aligning with the evolving needs of agent-native landscapes and establishing a proactive security posture.