Hyperledger Indy, Aries & AnonCreds

Overview

Hyperledger Indy, Aries, and AnonCreds are the foundational open-source frameworks of the self-sovereign identity movement, now stewarded across LF Decentralized Trust and the OpenWallet Foundation. Indy is a ledger for decentralized identifiers, Aries provided the agent and messaging layer, and AnonCreds is a zero-knowledge verifiable credential format. Much of today's ecosystem was built on or influenced by them.

What it is good at

No license cost and deep ecosystem roots are the strengths. These frameworks pioneered zero-knowledge proof credentials and predicate proofs (proving age over a threshold without revealing the date), and they remain widely deployed in government and consortium networks, such as public-sector digital trust programs. Being fully open source and self-hosted suits sovereignty requirements, and the tooling has evolved beyond AnonCreds to support W3C credentials, SD-JWT, mDL, and OpenID4VC.

Where it falls short

This is a set of frameworks to assemble, not a supported product, so it demands real engineering and operational ownership. The ecosystem is in transition: the Hyperledger Aries project was archived in 2025 as maintainers moved work to the OpenWallet Foundation and other Linux Foundation homes, while Indy continues in a stabilization and modernization phase. Teams must track where each component now lives.

Pricing

Free and open source (Apache 2.0). Costs are engineering, hosting, and operations. Model them with the TCO calculator.

Best for, and who should look elsewhere

Choose these frameworks for open-source, self-hosted SSI where AnonCreds or existing Indy networks matter and you have the engineering depth to own them. Look elsewhere for a supported, managed platform, such as Microsoft Entra Verified ID, or a maintained commercial stack like Procivis or walt.id.

Bottom line

The foundational open-source SSI frameworks, historically central and still deployed in government and consortium networks, but in ecosystem transition (Aries archived, Indy modernizing), so treat them as building blocks that need engineering ownership.