Xtra-Computing

license

Apache-2.0(OSI

source

public(the whole system)

core features withheld

no — a university research system with no paid edition

FedTree is an Apache-2.0 research system with no paid tier or held-back component.

• https://raw.githubusercontent.com/Xtra-Computing/FedTree/HEAD/LICENSE recorded 2026-09-27

  The LICENSE body: the verbatim Apache License, Version 2.0 text with no added clause.

• https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/Xtra-Computing%2FFedTree recorded 2026-09-27

  Repository record for Xtra-Computing/FedTree: license apache-2.0, description "A tree-based federated learning system (MLSys 2023)", not archived, not a fork, pushed 2025-01-20, 153 stars.

• https://ungh.cc/repos/Xtra-Computing/FedTree/files/cyz-grpc recorded 2026-09-27

  The 155-file tree of Xtra-Computing/FedTree at `cyz-grpc`: one root LICENSE, and no ee/, enterprise/, commercial/, proprietary/ or premium/ path anywhere in it. A python/LICENSE also sits under the Python bindings. Path absence only, paired with the statement cited beside it.

PyPI downloads of `fedtree`, the project's Python package.

• https://pypi.org/pypi/fedtree/json recorded 2026-09-27

  PyPI `fedtree` 1.0.5, uploaded 2023-01-26, "A federated learning library for trees", homepage https://github.com/Xtra-Computing/FedTree.

• https://pypistats.org/api/packages/fedtree/recent recorded 2026-09-27

  last_month = 6 downloads for the package `fedtree`.

FedTree runs real distributed federations with encryption, secure aggregation and differential privacy, but only for gradient-boosted trees, and parties join without any identity check. That puts it level with Plato.

• https://raw.githubusercontent.com/Xtra-Computing/FedTree/HEAD/README.md recorded 2026-09-27

  README: "Federated training of gradient boosting decision trees"; "Supporting homomorphic encryption, secure aggregation and differential privacy"; Standalone Simulation, Distributed Horizontal FedTree and Distributed Vertical FedTree via FedTree-distributed-server and FedTree-distributed-party.