Checkout.com vs KAYAK

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

Checkout.com (rank #152) holds a modest lead over KAYAK (rank #485) on the overall Smoower ecosystem score (52 vs 38). The gap of 14 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 KAYAK. On education (docs, guides and learning material for developers), KAYAK is slightly ahead of Checkout.com. On community (issue response, PR reviews and discussion health), Checkout.com is slightly ahead of KAYAK. On reach (how visible the ecosystem is beyond its own repos), Checkout.com is ahead of KAYAK. On momentum (release cadence and how fast the ecosystem moves), Checkout.com is clearly ahead of KAYAK.

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. KAYAK shows 3,186 stars across 72 public repos, 4 active in the last 90 days and 1 external contributors. The star gap on its own does not decide the comparison, but KAYAK's footprint is roughly 5.9x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Checkout.com is the stronger read for anyone weighting momentum. KAYAK 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.