Playwriter vs Prefactor

AI agents cannot browse the web properly. They either have no browser access, or they get a fresh Chrome with no logins, no extensions, and instant bot detection. Playwriter gives them your actual browser session instead. One Chrome extension, full automation API, everything you are already logged into. Includes accessibility snapshots (5-20KB instead of 100KB+ screenshots), a debugger with breakpoints, live code editing, network interception, and video recording. Works with any MCP client: Cursor, Claude, VS Code, and more. Open source, MIT licensed.

Prefactor is the essential control plane for AI agents, built to help engineering and product teams scale securely from experimental pilots to governed production deployments. It solves the critical infrastructure gap that emerges when AI agents move beyond demos: the lack of visibility, control, and auditability. In regulated industries like finance, healthcare, and mining, where "move fast and break things" is not an option, Prefactor provides the enterprise-grade governance layer that security, engineering, and compliance teams can align around. Its core value proposition is turning the complex challenge of agent authentication and authorization into a single, elegant layer of trust. By giving every AI agent a first-class, auditable identity with dynamic registration and fine-grained access controls, Prefactor enables companies to maintain full visibility over every agent action, automate permissions via policy-as-code, and generate business-context audit trails that satisfy strict regulatory scrutiny. Built for scalability and compliance from the ground up with SOC 2-ready security, Prefactor allows teams to stop rebuilding foundational security infrastructure and focus on building innovative agents.