Registry › Compare › Agent Browser vs Stagehand

Agent Browser vs Stagehand

Both are Grade A and 1.2 points apart, so choose on what you weigh most. Agent Browser leads on adoption; Stagehand leads on supply-chain integrity and maintenance, and rests on broader evidence.

A Agent Browser 87.7

Browser automation CLI for AI agents

vercel-labs/agent-browser · #48 overall · #7 Browser & Computer Use · coverage B (3/5)

Choose Agent Browser if adoption matters most.

+0.7Adoption: 2.1M weekly downloads against 1.7M

A Stagehand 88.9

The SDK to extract data and interact with any site on the web. Get started with Claude Code, Codex, Eve, Mastra, and more.

browserbase/stagehand · #35 overall · #5 Browser & Computer Use · coverage A (4/5)

Choose Stagehand if supply-chain integrity and maintenance matter most.

+1.7Maintenance
+0.7Safety / Integrity: OSSF Scorecard 5.0 against 4.5
+0.5Transparency: OSSF Scorecard 5.0 against 4.5
A vs BEvidence coverage: 4 of 5 independent signal types, against 3

Where they differ

18.1

Safety / IntegrityStagehand +0.7

18.8

12.3

TransparencyStagehand +0.5

12.8

18.1

MaintenanceStagehand +1.7

19.8

19.6

AdoptionAgent Browser +0.7

18.9

+1.6

Runtime calibrationAgent Browser +1.0

+0.6

1 dimension identical: Identity 18.0 · Full evidence table

An independent, evidence-based trust comparison of Agent Browser 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.

Full evidence

Signal	Agent Browservercel-labs/agent-browser	Stagehandbrowserbase/stagehand
HVTrust score	87.7	88.9
Evidence grade	A	A
Coverage grade	B	A
Overall rank	#48	#35
Rank in Browser & Computer Use	#7	#5
GitHub stars	43.8k	25.6k
Last updated	today	1d ago
Build provenance	Yes	Yes
OSSF Scorecard	4.5 / 10	5.0 / 10
License	Apache-2.0	MIT
Downloads	2.1M/wk	1.7M/wk
Trust dimensions (points earned)
Safety / integrity / 25	18.1	18.8
Identity & provenance / 18	18.0	18.0
Transparency / 17	12.3	12.8
Maintenance / 20	18.1	19.8
Adoption / 20	19.6	18.9
Runtime capability surface (full matrix)
MCP server	Implemented	Implemented
External providers	3 — Amazon Bedrock, Browserbase, Redis	3 — Anthropic, Browserbase, OpenAI
Requires API keys	Yes	Yes
Plugin surface	plugins	extensions
Provenance drift	Match	Match

Open in the live compare tool → Agent Browser 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 v4.4 →