Open Source P2P-based Community Service Platform

An Open Community Service Platform

las2peer is a Java-based Open Source framework for distributing community services in a peer-to-peer infrastructure. It is being developed by the ACIS Group which is part of the Chair of Computer Science 5 at RTWH Aachen University. Main goals are easy development and deployment of services.



las2peer is a peer-to-peer network with no central instance that controls the network.


The network hosts multiple services that communicate with each other. It's easy to develop a new service that integrates with other services decreasing development time.

Easy to deploy

Services can easily be deployed to an existing network and scaled up, making setting up own infrastructure obsolete. Connecting own nodes to a network can be done with no effort.


Data storage and communication is encrypted using strong asymmetric encryption.

Respects Privacy

Since las2peer runs on multiple servers, it's hard to track user activity.

Integrated with the Web

Creating RESTful APIs with las2peer as easy as writing Java applications. las2peer integrates services with OpenID and Swagger.

Use Cases

Latest News

las2peer Release v1.2.2

We recently released version v1.2.2. It just includes a minor dependency update for web3 and better authentication error management in case of login problems. To update your services to las2peer v1.2.x, please follow the migration guide.

las2peer Release v1.2.0

We recently released version v1.2.0. From now on las2peer is compatible with Java 17. We also updated the Gradle version to 7.2.The frontend was also updated and uses now Lit instead of Polymer.Also, some swagger dependencies were updated.And we did a bug fix regarding the GroupAgentGenerator. It is possible to generate groups again.

las2peer Release v1.1.2

After our maintenance release v1.1.1, we recently released version v1.1.2. Fixed was a small bug that synchronizes the nounce of the blockchain. Group agents can now also be stored in the blockchain. Also, semantic versioning for services has been improved. To increase the overview of the logs, we changed the log level of the...

Interested? Learn how to write your first service!