🍊ACA-Py

Aries Cloud Agent Python (ACA-Py) Plugin with cheqd support for Decentralized Identifiers (DIDs), DID-Linked Resources (DLRs) and Credentials.

Aries Cloud Agent Python (ACA-Py) is a powerful and extensible agent framework for building Verifiable Credential (VC) ecosystems. Built on the Aries RFCs and aligned with the Trust Over IP stack, ACA-Py operates at Layer 2 (Credential Exchange) and Layer 3 (Peer-to-Peer Communication).

As a project under the Open Wallet Foundation, ACA-Py supports dynamic extensions via runtime-loaded plugins, enabling flexible integration into enterprise and SSI platforms.

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DID and Credential Support

ACA-Py supports multiple credential formats and DID methods, including:

• AnonCreds

• W3C Verifiable Credentials (JSON-LD)

• DIDComm v1 & v2

• DID method plugins like did:peer, did:indy, and did:cheqd

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ACA-Py + cheqd: Modern Verifiable Credential Issuance

ACA-Py now includes full support for the did:cheqd method, enabling seamless integration with the cheqd decentralized identity network. This allows developers to:

• Create and resolve did:cheqd identifiers

• Publish Credential Schemas and Credential Definitions to cheqd

• Issue and verify AnonCreds credentials using cheqd DIDs as signatures

• Issue and verify JSON-LD credentials using cheqd DIDs as signatures

• Replace legacy did:sov/Sovrin usage with a modern, scalable alternative

💡 AnonCreds on cheqd are enabled via the cheqd AnonCreds Object Method, maintaining compatibility with ACA-Py's credential exchange workflows.

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Universal Registrar Integration

The cheqd plugin for ACA-Py supports dynamic DID registration via the Universal Registrar. This provides a streamlined interface for managing multiple DID methods.

Benefits of Using Universal Registrar:

• Unified DID Support Register multiple DID methods (e.g., did:cheqd, did:key, did:web) through a single unified API.

• Streamlined Setup Eliminate manual configuration—DIDs are created dynamically at runtime by calling the relevant driver.

• Interoperable by Design Easily switch or support multiple DID methods in the same ACA-Py deployment.

Get started

Get setup with your ACA-Py agent and begin using cheqd's functionality below:

cheqd Agent Setup

Setup the ACA-Py agent with cheqd plugin.

Create cheqd DIDs

Use the ACA-Py agent to create cheqd Decentralized Identifiers (DIDs).

Create DID-Linked Resources

Create a DID-Linked Resource (DLR) linked to a cheqd Decentralized Identifier (DID).

Issue a Credential

Issue and verify Verifiable Credential using ACA-Py agent with did:cheqd.