Checkout.com vs Klaviyo

Checkout.com (A collection of libraries and plugins for Checkout.com) and Klaviyo both appear on the Smoower Developer Ecosystem Index.

Checkout.com (rank #152) holds a narrow lead over Klaviyo (rank #237) on the overall Smoower ecosystem score (52 vs 48). The gap of 4 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Checkout.com is slightly ahead of Klaviyo. On education (docs, guides and learning material for developers), Klaviyo is slightly ahead of Checkout.com. On community (issue response, PR reviews and discussion health), Klaviyo is ahead of Checkout.com. On reach (how visible the ecosystem is beyond its own repos), Checkout.com is ahead of Klaviyo. On momentum (release cadence and how fast the ecosystem moves), Checkout.com is clearly ahead of Klaviyo.

Checkout.com carries 542 GitHub stars across 55 public repos, with 26 repositories active in the last 90 days and 11 external contributors on record. Klaviyo shows 573 stars across 117 public repos, 23 active in the last 90 days and 17 external contributors.

Checkout.com is the stronger read for anyone weighting momentum. Klaviyo looks better where community is the deciding factor. The table below breaks the scores down pillar by pillar; the linked profiles cover the underlying repos, docs and community signals in full.