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httpYac vs Step CI: catalog facts
httpYac	Step CI
Free Free to use.	Freemium The open-source runner is free; the site also lists paid options and demos.
Command line	Command line
Plain-text request files that fit in version control REST, SOAP, GraphQL and gRPC in one tool	Tests REST, GraphQL, gRPC and SOAP in one format Imports from OpenAPI, Postman and Insomnia
No standalone graphical app; works through the CLI or VS Code Scripting requires familiarity with Node.js	No graphical interface for manual requests Requires Node.js or Docker to run
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.