Checksum AI

Checksum is an automated end-to-end testing platform that generates, runs, and self-heals Playwright tests without manual test-writing, used by companies including Ketch, LiveRamp, and ActiveCampaign across fintech, insurance, and legal tech. It runs three specialized agents: an End-to-End Agent that generates production-ready tests and auto-heals them as selectors or flows change, a CI Agent that creates 50–200 targeted tests per pull request based on what actually changed, and an API Agent covering thousands of endpoints automatically. Documented customer results include Söderberg & Partners saving 90 hours a month and Reservamos reporting $200K in annual savings. Pricing follows a "Results-as-a-Service" model tied to the number of tests maintained rather than per-seat or per-run fees, with human engineer verification ensuring delivered tests actually work — exact rates aren't published and require contacting sales. Good fit for an engineering team that wants comprehensive E2E test coverage without dedicating engineers to writing and constantly maintaining brittle test suites.