KAYAK vs SlackAPI

KAYAK and SlackAPI (https://docs.slack.dev/tools) both appear on the Smoower Developer Ecosystem Index.

SlackAPI (rank #47) holds a meaningful lead over KAYAK (rank #485) on the overall Smoower ecosystem score (61 vs 38). The gap of 23 points reflects composite signals across code, docs, community and reach.

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

KAYAK carries 3,186 GitHub stars across 72 public repos, with 4 repositories active in the last 90 days and 1 external contributors on record. SlackAPI shows 17,894 stars across 37 public repos, 19 active in the last 90 days and 39 external contributors. The star gap on its own does not decide the comparison, but SlackAPI's footprint is roughly 5.6x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

KAYAK is the stronger read for anyone weighting reach. SlackAPI 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.