Drive a browser

Anchor Browser

Cloud Chromium browser service for AI agents, controlled over CDP or REST, with proxies, captcha solving, recordings and managed logins.

Rate limits

Session creation: Per minute: Free 5, Starter 25, Team 50, Growth 100, Enterprise 200+; 429 with Retry-After when exceeded8
Recordings list: US 200 per API key per minute; EU 508

Other limits

Concurrent browsers: Free 5, Starter 25, Growth 200, Enterprise 500+; 429 without Retry-After is a concurrency cap8
Batch sessions: Up to 5,000 sessions in one call8
AI tokens and steps per task: 10M tokens and 120 steps on Free and Starter1
Idle timeout: 5 minutes by default7

Read from Anchor’s own pages on 2026-11-04. Every number links to the page a value came from. For agents, the same facts as markdown: /tools/drive-a-browser/anchor-browser.md