Klaviyo vs Stripe

Klaviyo and Stripe both appear on the Smoower Developer Ecosystem Index.

Stripe (rank #1) holds a meaningful lead over Klaviyo (rank #237) on the overall Smoower ecosystem score (76 vs 48). The gap of 28 points reflects composite signals across code, docs, community and reach.

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

Klaviyo carries 573 GitHub stars across 117 public repos, with 23 repositories active in the last 90 days and 17 external contributors on record. Stripe shows 44,519 stars across 97 public repos, 64 active in the last 90 days and 124 external contributors. The star gap on its own does not decide the comparison, but Stripe's footprint is roughly 77.7x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Klaviyo is the stronger read for anyone weighting reach. Stripe looks better where momentum 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.