The OpenCAPI Consortium is an open forum to manage the OpenCAPI specification and ecosystem. OpenCAPI is a not-for-profit organization formed in October 2016 by OpenCAPI Strategic Members AMD, Google, IBM, Mellanox Technologies and Micron to create an open coherent high performance bus interface based on a new bus standard called Open Coherent Accelerator Processor Interface (OpenCAPI) and grow the ecosystem that utilizes this interface. This initiative is being driven by the emerging accelerated computing and advanced memory/storage solutions that have introduced significant system bottlenecks in today’s current open bus protocols and requires a technical solution that is openly available.

Check out these downloadable specifications for public learning purposes!  

OpenCAPI 3.0 Transaction Layer Specification  

OpenCAPI 3.1 Transaction Layer Specification  

OpenCAPI 4.0 Transaction Layer Specification

OpenCAPI Data Link Layer Specification

Fill out the form “Download the Standard” at the bottom of this page to download the specifications.

Attention Members Only –  See all approved specifications. 

Please click on the member login and view the All Members documents.

How to become OpenCAPI Ready

The OpenCAPI Ready™ program is used by the OpenCAPI Consortium to enable OpenCAPI ecosystem product developers to indicate that a product has been shown/demonstrated to meet a minimum set of characteristics and should be interoperable with other OpenCAPI Ready products.

Click here to submit your product:  OpenCAPI Ready Submission