Cybersource vs Klarna

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

Klarna (rank #257) holds a modest lead over Cybersource (rank #536) on the overall Smoower ecosystem score (47 vs 36). The gap of 11 points reflects composite signals across code, docs, community and reach.

On code quality (the state of repositories, tests, releases and polish), Klarna is slightly ahead of Cybersource. On education (docs, guides and learning material for developers), Klarna is ahead of Cybersource. On reach (how visible the ecosystem is beyond its own repos), Klarna is clearly ahead of Cybersource. On momentum (release cadence and how fast the ecosystem moves), Cybersource is clearly ahead of Klarna.

Cybersource carries 587 GitHub stars across 40 public repos, with 28 repositories active in the last 90 days and 7 external contributors on record. Klarna shows 2,965 stars across 139 public repos, 8 active in the last 90 days and 2 external contributors. The star gap on its own does not decide the comparison, but Klarna's footprint is roughly 5.1x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Cybersource is the stronger read for anyone weighting momentum. Klarna looks better where reach 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.