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🌐agent-browser

ACTIVE BREAKOUT

vercel-labs/agent-browser · homepage ↗

Browser automation CLI for AI agents

⭐ Very popular: 41k stars, gaining about 427 a week

View on GitHub ↗

repo profile

vintage 2026 launched this year
delivery product
language Rust
license Apache-2.0

momentum

total stars 41k
stars added last week +427
binary downloads 2k total · GitHub releases
used by 888 repos & packages
commits / week 5 steady · +5% vs prior mo
issues closed 46% ~1 day to close, median
contributors 112 (+1 in 15d)
release cadence weekly
last activity today

durability

backing company-owned Vercel
openness permissive
bus factor 1 solo
top-author share 55% 6 mo

bus factor = how many people it takes to cover more than half the commits (6 months). 1 is a solo project; higher means the work is spread across a team. top-author share is the single busiest author's slice of those commits.

since we covered it

monthly average + 5k/mo (+43%/mo) · + 30k total since PR#26

why it's a big deal

  • The snapshot plus refs workflow makes browser automation more reliable for agents than fragile CSS selectors.
  • A CLI-first interface makes it easy to plug into any agent harness, from Claude Code to Codex to OpenCode.
  • Provider support enables cloud browser execution when local browsers are not feasible in CI or serverless.

under the hood

  • Uses a Rust CLI for speed and a persistent Node.js daemon for Playwright session management.
  • Supports machine-readable JSON output for agents and deterministic refs like @e1, @e2 derived from snapshots.
  • Integrates with remote browser providers like Browserbase, Browser Use, and Kernel via a provider flag or env vars.

our take from PR#26, 2026-01-28

star history

PR#26 · 11k41k now Jan 2026Aug 2026
  1. PR#26 11k 2026-01-28
  2. now 41k + 30k since first covered

curve is sampled from GitHub's star history, plus our own daily readings since we covered it; the dashed stretch is before we first covered it, the solid line since. figures at coverage are the numbers we printed then (approx.), current count is live.

understory

Better known than its recent output, coasting a little on attention.

-19 understory score output 61 · clout 80
Aug 2025 Jul 2026
  • output, commits & releases
  • clout, star velocity

output = commits & releases; clout = star velocity, both 0 to 100 monthly indices; the gap where output runs above clout is the understory. The understory →

covered in

  • PR#26 2026-01-28 on the radar

    Headless browser automation CLI for AI agents

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