Agent Browser vs Browser Harness
An independent, evidence-based trust comparison of Agent Browser and Browser Harness, 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 — 88.7/100 (Grade A) vs 86.7/100 (Grade A), a 2.0-point gap. Full breakdown below.
| Signal | Agent Browservercel-labs/agent-browser | Browser Harnessbrowser-use/browser-harness |
|---|---|---|
| HVTrust score | 86.7 | 88.7 |
| Evidence grade | A | A |
| Coverage grade | B | B |
| Overall rank | #31 | #20 |
| Rank in Browser & Computer Use | #3 | #1 |
| GitHub stars | 40.7k | 16.7k |
| Last updated | 1d ago | today |
| Build provenance | Yes | Yes |
| OSSF Scorecard | 4.3 / 10 | 6.1 / 10 |
| License | Apache-2.0 | MIT |
| Downloads | 923k/wk | 3.0M/wk |
| Trust dimensions (points earned) | ||
| Safety / integrity / 25 | 17.9 | 17.1 |
| Identity & provenance / 18 | 18.0 | 18.0 |
| Transparency / 17 | 12.2 | 13.7 |
| Maintenance / 20 | 17.6 | 18.6 |
| Adoption / 20 | 19.0 | 18.8 |
| Runtime capability surface (full matrix) | ||
| MCP server | Implemented | — |
| External providers | 3 — Amazon Bedrock, Browserbase, Redis | 1 — Anthropic |
| Requires API keys | Yes | No |
| Plugin surface | plugins | plugins |
| Provenance drift | Match | Match |
Open in the live compare tool →
Agent Browser profile
Browser Harness 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 →