Foldseek

Fast structural similarity search across millions of structures.

Steinegger lab, Seoul National University

What it does

Structure search. Input: a query structure; output: structurally similar entries across PDB/AFDB with alignment and E-values - how you check whether a designed fold or epitope already exists.

Commercial use

Restricted

Licence as writtenGNU General Public License v3.0

LICENSE.md in the repo is GPL-3.0. Internal commercial use is allowed, but distributing software that incorporates Foldseek requires releasing the derivative work under GPL-3.0, which matters if you plan to ship a product containing it.

Some commercial use is possible, but a component, dependency or condition needs a paid licence or carries obligations.

Is commercial use free of charge?

Free for commercial use

No fee, but GPL-3.0: if you ship Foldseek inside a product you distribute, you must release that product's source under GPL-3.0. Running it internally as a service carries no such obligation.

Price and rights are separate: this panel is about money, the panel above is about permission.

When to use it

Use to find structural neighbours of a designed backbone, e.g. novelty checks and self-similarity screening. GPL copyleft makes embedding it in a closed product awkward.

Facts

Maker
Steinegger lab, Seoul National University
Cost for commercial use
Free for commercial use
Compute
CPU
Open weights
Yes
Licence
GNU General Public License v3.0
Last verified