SegmentLite
Lightweight event routing and webhook fan-out API alternative to Segment
Color conversion, complementary, grayscale and contrasted text.
Serialif Color API is a free Development API that requires no API key, is served over HTTPS and does not support CORS, so it should be called from a server.

Unified API suite · now live
Geocode an address, validate an email, track a flight or pull stock data with one account, one dashboard and one API key.
Lightweight event routing and webhook fan-out API alternative to Segment
Website screenshot API (PNG/JPEG/PDF) with full-page capture and visual-diff monitors
Yes. The Serialif Color API is listed in the Development category of the public-apis directory, which only includes APIs that are free or have a free tier. Check its documentation for rate limits and paid plans.
No. The Serialif Color API requires no authentication, so you can start making requests without signing up.
Not directly. The Serialif Color API does not allow CORS, so call it from a server, serverless function or proxy instead of front-end JavaScript.
Yes. The Serialif Color API is served over HTTPS, so it's safe to use in production.