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Teku is under heavy development. If something isn't working as documented, check the changelog or get in touch on our Teku Discord channel. There may be updates that haven't yet made it to the documentation.

Updated on April 16, 2020

PegaSys Teku

What is Teku?

Teku is an open-source Ethereum 2.0 client written in Java. Teku contains a full Beacon node implementation and a validator client for participating in consensus.

What can you do with Teku?


  • Runs the Beacon node synchronization and consensus.
  • Proposes and attests blocks.
  • Provides enterprise focused metrics with Prometheus.
  • Has REST APIs for managing Eth 2.0 node operations.
  • Has external key management to manage validator signing keys.
ConsenSys has acquired Quorum from J.P. Morgan. Please read the FAQ.
Questions or feedback? You can discuss issues and obtain free support on Teku Discord channel.
For paid professional support by Pegasys, contact us at