An open standard · W3C Verifiable Credentials & VCALM
Issue and verify W3C Verifiable Credentials — without vendor lock-in.
A guide to issuing and verifying W3C Verifiable Credentials with the Verifiable Credential API for Lifecycle Management (VCALM). Pick a vertical, learn how it works, ship it.
Pick your use case
Each guide answers "would this work for us?" — then shows you how to build it.
Why VCALM?
The Verifiable Credential API for Lifecycle Management (VCALM) solves the vendor lock-in problem in digital credential ecosystems. A global standards-track solution at the W3C, it is the only digital credential lifecycle management solution that ensures you don't get locked into one vendor or digital credential software stack. It also doesn't force you to choose things you don't want; it supports variations of W3C VCs, mDL, mDoc, SD-JWT, OID4VCI, OID4VP, HAIP, DIDComm, and many other digital credential formats and protocols.