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Assertible vs Venom: catalog facts
Assertible	Venom
Freemium Hosted service that requires sign-up; see the site for plans.	Free Free and open source, maintained by OVHcloud.
Web	Windows, macOS, Linux, Command line
Continuous monitoring as well as one-off tests Syncs tests with an imported API specification	Tests are written as declarative files that are easy to review Several executors including HTTP, scripts, web and IMAP
Requires an account Hosted only, with no self-hosted option mentioned	No graphical interface for building requests Test file format takes some learning
Hosted service	Downloadable app
Closed source	Open source
License not stated	License: Apache-2.0
Account needed	No account needed
Needs internet	Not stated if it works offline
Official website Full listing and sources Checked October 1, 2026	Official website Full listing and sources Checked October 1, 2026

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