Postman announced its Public API Network is now the largest API hub in the world, serving 17 million users and 500,000 organizations worldwide. The network is a global directory of thousands of public APIs, connecting developers around the globe and providing a central catalog of APIs built for discovery, exploration, and sharing. Users can easily browse a vast range of public workspaces from popular API publishers such as Salesforce, Microsoft, Twilio, Twitter, Cisco DevNet, and more. Since then, users have created more than 700,000 requests, calling on more than 75,000 APIs on the network and organized more than 35,000 collections of API requests.
Source: https://www.helpnetsecurity.com/2021/08/10/postman-public-api-network/