RegistryCompare › Browser Harness vs Stagehand

Browser Harness vs Stagehand

An independent, evidence-based trust comparison of Browser Harness and Stagehand, two Browser & Computer Use projects in the HVTracker registry. Scores come from public, checkable signals — supply-chain provenance, OSSF Scorecard, maintenance, and adoption — not popularity.

Browser Harness leads on trust — 87.7/100 (Grade A) vs 87.5/100 (Grade A), a 0.2-point gap. Note: Browser Harness's evidence coverage is thinner (coverage B vs A) — its score rests on fewer independent signal types. Full breakdown below.
Signal Browser Harnessbrowser-use/browser-harness Stagehandbrowserbase/stagehand
HVTrust score 87.7 87.5
Evidence grade A A
Coverage grade B A
Overall rank #25 #26
Rank in Browser & Computer Use #1 #2
GitHub stars 16.7k 23.9k
Last updated 11d ago today
Build provenance Yes Yes
OSSF Scorecard 6.1 / 10 5.4 / 10
License MIT MIT
Downloads 3.0M/wk 1.2M/wk
Trust dimensions (points earned)
Safety / integrity / 25 17.1 19.2
Identity & provenance / 18 18.0 18.0
Transparency / 17 13.7 13.1
Maintenance / 20 17.4 18.4
Adoption / 20 18.8 18.6
Runtime capability surface (full matrix)
MCP server
External providers 1 — Anthropic 3 — Anthropic, Browserbase, OpenAI
Requires API keys No Yes
Plugin surface plugins
Provenance drift Match Match
Open in the live compare tool → Browser Harness profile Stagehand profile More Browser & Computer Use →

How to read this: HVTrust (0–100) weighs supply-chain signals (provenance, OSSF Scorecard, signed commits, open license) alongside real-world adoption, scaled by an evidence-confidence factor. Grade bands: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Signals refresh daily. Full methodology v4.3 →