Scalebrowser provides dedicated, isolated browser profiles designed specifically for AI agents to operate at scale. Each profile maintains a persistent identity with stored logins, two-factor codes, and passkeys that survive restarts, so sites recognize the same visitor across sessions. The platform handles captcha solving across 18 types, reduces model token costs by 11x compared to alternatives, and connects via MCP, Python or Node SDKs, or direct CDP. Agents can be pointed at Scalebrowser with minimal code changes, and all credentials remain encrypted on the user's own machine.