certifi

Install command: 
brew install certifi

Formerly known as: python-certifi

Mozilla CA bundle for Python

https://github.com/certifi/python-certifi

License: MPL-2.0

Development: Pull requests

Formula JSON API: /api/formula/certifi.json

Formula code: certifi.rb on GitHub

Bottle (binary package) installation support provided.

Current versions:

stable ✅ 2026.10.23

Depends on:

ca-certificates 2026-10-20 Mozilla CA certificate store

Depends on when building from source:

python-setuptools 84.2.1 Easily download, build, install, upgrade, and uninstall Python packages
python@3.15 3.15.2 Interpreted, interactive, object-oriented programming language

GitHub Packages downloads:

Last 30 days1,275,094
Downloads15,301,445
Analytics install events (30 days)106,356
Downloads / install events (30 days)12.0×

Source: GitHub Packages, fetched 2026-11-01T00:47:11Z. Analytics dates: 2026-10-02 to 2026-11-01. Totals exclude downloads from Bintray before the migration to GitHub Packages. Downloads and install attempts measure different things; the difference does not count analytics opt-outs. Definitions and limitations.

Analytics:

30 days90 days365 days
Installs106,350169,929784,917
Installs (--HEAD)6857
Installs on Request3,9775,32327,444
Installs on Request (--HEAD)4549
Build Errors0