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The Self Sovereign Identity Service (SSIS) facilitates all things relating to DIDs and Verifiable Credentials -- in a box! The service is a part of a larger Decentralized Web Platform architecture which you can learn more about in our collaboration repo. The SSI Service is a RESTful web service that wraps the ssi-sdk. The core functionality of the SSIS includes, but is not limited to: interacting with the standards around Verifiable Credentials, Credential Revocations, requesting Credentials, exchanging Credentials, data schemas for Credentials and other verifiable data, messaging using Decentralized Web Nodes, and usage of Decentralized Identifiers. Using these core standards, the SSIS enables robust functionality to facilitate all verifiable interactions such as creating, signing, issuing, curating, requesting, revoking, exchanging, validating, verifying credentials in varying degrees of complexity.



Configuration is managed using a TOML file. There are sets of configuration values for the server (e.g. which port to listen on), the services (e.g. which database to use), and each service. Each service may define specific configuration, such as which DID methods are enabled for the DID service.

Build & Test

This project uses mage, please view CONTRIBUTING for more information.

After installing mage, you can build and test the SDK with the following commands:

mage build
mage test

A utility is provided to run clean, build, and test in sequence with:

mage cbt

Continuous Integration

CI is managed via GitHub Actions. Actions are triggered to run for each Pull Request, and on merge to main. You can run CI locally using a tool like act.


The service is packaged as a Docker container, runnable in a wide variety of environments. Docker Compose is used for simplification and orchestration. To run the service, you can use the following command, which will start the service on port 8080:

mage run

Or, you can run docker-compose yourself:

cd build && docker-compose up --build

Health and Readiness Checks

You should then be able to send requests as follows:

Note: port 3000 is used by default, specified in config.toml, for the SSI Service process. If you're running via mage run or docker compose, the port to access will be 8080.

The command below will give you a health check, if the status is OK then you are up.

 ~ curl localhost:3000/health

The command below will tell if you all the services (credential, did, and schema) are up and ready.

~ curl localhost:8080/readiness
"status": {
"status": "ready",
"message": "all service ready"
"serviceStatuses": {
"credential": {
"status": "ready"
"did": {
"status": "ready"
"schema": {
"status": "ready"

REST Endpoints

You can find more rest endpoints by checking out the swagger docs at: http://localhost:8002/docs

Note: Your port by differ, the range of the ports for swagger are between 8002 and 8080.

What's Supported?

Design Thinking

The design of the service, at present, assumes it will be run by a single entity. Additional work is needed around authentication and authorization schemes to access the service and its functionalities, possible User Interfaces to use the service, and much more! Please open a discussion if you are interested in helping shape the future of this project.


This project is fully open source, and we welcome contributions! For more information please see CONTRIBUTING. Our current thinking about the development of the library is captured in GitHub Issues.

Project Resources

CODEOWNERSOutlines the project lead(s)
CODE_OF_CONDUCT.mdExpected behavior for project contributors, promoting a welcoming environment
CONTRIBUTING.mdDeveloper guide to build, test, run, access CI, chat, discuss, file issues
GOVERNANCE.mdProject governance
SECURITY.mdVulnerability and bug reporting
LICENSEApache License, Version 2.0