Klaviyo vs Modern Treasury

Klaviyo and Modern Treasury (Modern Treasury builds payment operations software. Use our web application or API to manage the full cycle of money movement.) both appear on the Smoower Developer Ecosystem Index.

Klaviyo (rank #237) holds a modest lead over Modern Treasury (rank #510) on the overall Smoower ecosystem score (48 vs 37). 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), Klaviyo is slightly ahead of Modern Treasury. On education (docs, guides and learning material for developers), Modern Treasury is clearly ahead of Klaviyo. On community (issue response, PR reviews and discussion health), Klaviyo is ahead of Modern Treasury. On reach (how visible the ecosystem is beyond its own repos), Klaviyo is clearly ahead of Modern Treasury. On momentum (release cadence and how fast the ecosystem moves), Klaviyo is slightly ahead of Modern Treasury.

Klaviyo carries 573 GitHub stars across 117 public repos, with 23 repositories active in the last 90 days and 17 external contributors on record. Modern Treasury shows 182 stars across 14 public repos, 8 active in the last 90 days and 5 external contributors. The star gap on its own does not decide the comparison, but Klaviyo's footprint is roughly 3.1x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Klaviyo is the stronger read for anyone weighting reach. Modern Treasury looks better where education 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.