# Install cdi with Homebrew C and Fortran Interface to access Climate and NWP model Data. Version 2.6.3 via Homebrew; verified 2026-06-22. ## Install ```sh sudo av install brew:cdi ``` Additional install commands: ### macOS - Homebrew (100%): ```sh brew install cdi ``` Evidence: local Homebrew formula metadata ## Package facts - **Package key:** brew:cdi - **Package manager:** Homebrew - **Package manager page:** - **Version:** 2.6.3 - **Source summary:** C and Fortran Interface to access Climate and NWP model Data - **Homepage:** - **Upstream docs:** - **License:** BSD-3-Clause - **Source archive:** - **Last updated:** 2026-06-22T14:02:59-07:00 - **Generated:** 2026-07-08T07:18:31+00:00 ## Executables - cdi (cli) - cdi (alias) ## Dependencies - eccodes - libaec - netcdf ## Install behavior - Post-install hook: not defined - Bottle: available on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux ## Freshness - Page generated: 2026-07-08 - Package-manager version: 2.6.3 - Package-manager updated: 2026-06-22 - Local data: ok - Upstream repository: https://code.mpimet.mpg.de/projects/cdi - info: Release/tag comparison is only available for GitHub repositories. ## Project history and usage CDI, the Climate Data Interface, is a C and Fortran library for accessing climate and numerical weather prediction model data in formats such as GRIB, netCDF, SERVICE, EXTRA, and IEG. ### Project history The official MPI-M Redmine overview and wiki describe CDI as a C and Fortran interface to access Climate and NWP model data. The embedded C manual identifies Uwe Schulzweida of the Max Planck Institute for Meteorology as the author and documents CDI C manual version 1.9.9 from October 2020. The project news on the official overview shows recent release cadence: version 2.0.0 in 2021, 2.1.0 in 2022, 2.2.0 and 2.3.0 in 2023, and 2.4.0 in 2024. ### Adoption history CDI appears as a specialized scientific package rather than a general CLI utility. Its official wiki lists software that uses CDI, including Climate Data Operators, ECHAM, MPIOM, ICON, afterburner, and MATLAB-CDI. Homebrew packaging gives macOS and Linux package-manager users access to the cdi executable and library. ### How it is used CDI is used by climate and meteorology software to read, write, and transform model-data streams across GRIB, netCDF, SERVICE, EXTRA, and IEG formats. The manuals cover C and Fortran bindings, file formats, stream APIs, and compiling/linking with the CDI library. ### Why package nerds care CDI is interesting in package-manager terms because it packages domain infrastructure from climate modeling: a format abstraction layer used by larger tools such as CDO and model workflows, not a standalone consumer application. Its value is in making scientific data formats available through distro and Homebrew dependency graphs. ### Timeline - 2020-10: Embedded C manual version 1.9.9 published. - 2021-10-11: Version 2.0.0 release news posted. - 2022-10-07: Version 2.1.0 release news posted. - 2023-07-13: Version 2.2.0 release news posted. - 2023-10-20: Version 2.3.0 release news posted. - 2024-02-21: Version 2.4.0 release news posted. ### Related projects - The official wiki lists CDO, ECHAM, MPIOM, ICON, afterburner, and MATLAB-CDI as software using CDI. ### Sources - - - - ## Security Notes narrow executable package without higher-risk signals. - **Geiger risk:** green / low - narrow executable package without higher-risk signals ## Source Database Details - **Source Database:** Homebrew formula API - **Tap:** homebrew/core - **Full Name:** cdi - **Version Scheme:** 0 - **Revision:** 0 - **Bottle Stable Root URL:** - **Deprecated:** no - **Disabled:** no - **Keg Only:** no - **URL Keys:** stable ## Related links - [Terminal utility packages](https://www.automicvault.com/pkg/terminal-utilities/) - Matched terminal and command-line workflow metadata. - [Networking and protocol packages](https://www.automicvault.com/pkg/networking-protocol-tools/) - Matched network, protocol, or remote-service metadata. - [Database and data packages](https://www.automicvault.com/pkg/database-data-tools/) - Matched database, SQL, migration, or data-store metadata. - [Scientific computing packages](https://www.automicvault.com/pkg/scientific-computing-tools/) - Matched scientific computing metadata. - [eccodes](https://www.automicvault.com/pkg/brew/eccodes/) - Runtime dependency declared by Homebrew. - [netcdf](https://www.automicvault.com/pkg/brew/netcdf/) - Runtime dependency declared by Homebrew. - [metview](https://www.automicvault.com/pkg/brew/metview/) - Shares av.db curated category or tags: cli, grib, meteorology, netcdf, science. - [nco](https://www.automicvault.com/pkg/brew/nco/) - Shares av.db curated category or tags: cli, climate, netcdf, science. - [calceph](https://www.automicvault.com/pkg/brew/calceph/) - Shares av.db curated category or tags: c-library, cli, fortran, science. - [cfitsio](https://www.automicvault.com/pkg/brew/cfitsio/) - Shares av.db curated category or tags: c-library, cli, fortran, science. - [abpoa](https://www.automicvault.com/pkg/brew/abpoa/) - Shares av.db curated category or tags: c-library, cli, science. - [cddlib](https://www.automicvault.com/pkg/brew/cddlib/) - Shares av.db curated category or tags: c-library, cli, science. - [fftw](https://www.automicvault.com/pkg/brew/fftw/) - Shares av.db curated category or tags: c-library, cli, science. - [freesasa](https://www.automicvault.com/pkg/brew/freesasa/) - Shares av.db curated category or tags: c-library, cli, science. - [cdo](https://www.automicvault.com/pkg/brew/cdo/) - Local package facts share a topical domain. Shared terms: cli, climate, climate-data, data, eccodes. ## Combined YAML source View the package source record on GitHub. [combined/cdi.yml](https://github.com/automic-vault/db/blob/main/combined/cdi.yml) ## Sources - Nucleus package database - Geiger risk classifier - package-page enrichment - curated package history - package version freshness - av.db category and tag curation - package relationship graph - cross-ecosystem install command graph