Topic browser automation

Proxies for CloakBrowser: three routes for one login
CloakBrowser takes a proxy in one argument, but your login can travel three different ways. Which one you get depends on your platform and your build.

Proxies for agent-browser: one flag, and three traps
Vercel's agent-browser takes a proxy in one flag and answers the login itself. Where it reads the address in 0.38.1, and which documented form cannot work.

Proxies for Chrome DevTools MCP: one flag, one condition
Chrome DevTools MCP takes a --proxyServer flag, and drops it silently when it attaches to a running Chrome. What the flag can carry, and what it cannot.

Proxies for Lightpanda: the browser that takes the login
Lightpanda runs on libcurl, not Chrome, so its proxy takes a login in the address and SOCKS5 works. What the CDP proxy parameter really changes.

Proxies for Stagehand: what each environment accepts
Stagehand 4.1.0 refuses a local proxy with a login, while its own documentation shows one. What the local browser takes, and what the hosted session does.
Proxies that don't die mid-job
Residential, ISP, datacenter and mobile, verified by the same engine that runs tens of millions of checks. They read as a real device and hold up under load. Pay as you go, and your balance never expires. $0.44/GB is the 2,000 GB+ rate; a single gigabyte is $0.50/GB, with no minimum order.
129M+ proxy checks run · 100+ countries · HTTP / HTTPS / SOCKS · re-checked every few minutes · no signup