testers.ai is the company behind CARBON, a product that applies AI testing agents to software testing. The Local Harness runs inside AI coding agents such as Claude Code, Codex or Cursor, or via MCP, using specialist AI sub-agents. CARBON Cloud takes a URL, explores the site and returns findings with evidence. An On-Premise Cloud variant deploys CARBON Cloud in the customer's own infrastructure. Free assessments and paid, commercially licensed plans exist.
The website does not state where testers.ai is located or where data is hosted; its privacy page refers such questions to the company. According to the vendor, the Local Harness keeps project evidence locally, but the coding agent may send context to its own model provider, and this is no air-gap or zero-retention guarantee. In Cloud, the submitted URL, captured content and report are public. AI processing depends on the chosen configuration and providers, which are not named. European organisations should clarify data location, processors and terms in advance; the on-premise option keeps execution in their own environment.