Developer ecosystem comparison
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Cybersource vs Fillout

Developer ecosystem comparison across GitHub activity, SDKs, documentation, community, reach and momentum.

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

Fillout (rank #510) holds a narrow lead over Cybersource (rank #536) on the overall Smoower ecosystem score (37 vs 36). The gap of 1 points reflects composite signals across code, docs, community and reach.

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

Cybersource carries 587 GitHub stars across 40 public repos, with 28 repositories active in the last 90 days and 7 external contributors on record. Fillout shows 2 stars across 9 public repos, 3 active in the last 90 days and 3 external contributors. The star gap on its own does not decide the comparison, but Cybersource's footprint is roughly 293.5x larger, which usually shows up in downstream signals like inbound issues and third party integrations.

Cybersource is the stronger read for anyone weighting momentum. Fillout 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.

Side-by-side metrics

MetricCybersourceFillout
Ranking
Overall rank#536#510
Pillars
Overall3637
Code4934
Education6453
Community3127
Reach3650
Momentum3715
Builder experience00
Signals
Stars5872
Forks9864
Public repos409
Active repos (90d)283
External contributors73
Avg polish4834
Avg AI-readiness4321

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