Cybersource vs Klaviyo

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

Klaviyo (rank #237) holds a modest lead over Cybersource (rank #536) on the overall Smoower ecosystem score (48 vs 36). The gap of 12 points reflects composite signals across code, docs, community and reach.

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

Cybersource carries 587 GitHub stars across 40 public repos, with 28 repositories active in the last 90 days and 7 external contributors on record. Klaviyo shows 573 stars across 117 public repos, 23 active in the last 90 days and 17 external contributors.

Cybersource is the stronger read for anyone weighting education. 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.