Compare software

Step CI vs Assertible: catalog facts
Step CI	Assertible
Freemium The open-source runner is free; the site also lists paid options and demos.	Freemium Hosted service that requires sign-up; see the site for plans.
Command line	Web
Tests REST, GraphQL, gRPC and SOAP in one format Imports from OpenAPI, Postman and Insomnia	Continuous monitoring as well as one-off tests Syncs tests with an imported API specification
No graphical interface for manual requests Requires Node.js or Docker to run	Requires an account Hosted only, with no self-hosted option mentioned
Downloadable app	Hosted service
Open source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Works offline	Needs internet
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked October 1, 2026

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