updated 2026-09-26 06:32 UTC

Browser4

platonai/Browser4

Browser4 — an AI-native browser engine for autonomous agents, intelligent extraction, and large-scale web automation.

Browser & Computer Use Kotlin Listed Apache-2.0

Is Browser4 safe? Strong public trust posture, backed by multiple independent signals.

OSSF Scorecard 4.1 / 10
Provenance Attested
Signed commits 1%
Last push today
Compare Browser4

How does it stack up against its Browser & Computer Use neighbours?

Pick any agent to compare →
Suggest a correction

In detail: Browser4 scores 75.0/100 (Grade B), ranked #225 of 1325 tracked open-source AI agent projects, on evidence coverage B (3 of 5 independent signal types). The public evidence: its packages ship with cryptographic provenance; OSSF Scorecard rates its supply-chain practices 4.1/10; 1% of recent commits are signed; last pushed 2026-09-26. Every point is earned from checkable signals — never paid placement. How scoring works →

How Browser4 compares in Browser & Computer Use

  1. #8 agent-device 80.1 +5.1
  2. #9 Peekaboo 76.9 +1.9
  3. #10 Browser4 75.0 this agent
  4. #11 Cua 74.3 −0.7
  5. #12 Browser Use 72.4 −2.6

Bars show each HVTrust score; the tick marks Browser4’s 75.0.

Where the 75.0 comes from

HVTrust dimensions vs the Browser & Computer Use average

75.0 / 100 · 100.0% confidence

Browser4 Browser & Computer Use average (42 agents)

Safety / Integrity50% OSSF Scorecard · 30% provenance · 20% signed commits
12.7 / 25
3.1 above avg 9.6
Identity / Provenance60% listing status · 40% build provenance
18.0 / 18
5.7 above avg 12.3
Transparency50% declared license · 50% OSSF Scorecard
12.0 / 17
in line with avg 11.9
Maintenance60% last-push freshness · 40% commit activity
20.0 / 20
6.7 above avg 13.3
AdoptionLog-scaled stars · package downloads
11.1 / 20
in line with avg 11.3

Quick Trust Read

What Would Improve It
Increase the share of verified signed commits for clearer maintainer identity.
Recent Changes
2026-09-24
Provider Added
Runtime surface grew — new detected provider dependency: Anthropic
2026-09-23
Tool Surface Changed
Detected tool/plugin surface changed: none → declared
2026-09-23
Provider Added
Runtime surface grew — new detected provider dependencies: DeepSeek, OpenAI, OpenRouter
Maintainer Checklist
Raise Scorecard signals Current OSSF Scorecard is 4.1/10. Tighten the weakest checks to improve public safety evidence.
Increase signed commits Raise the share of verified-signed commits to make maintainer identity and release history easier to trust.
Compare with another agent Get email alerts for Browser4 View Browser & Computer Use Report missing data
78.5
Activity sub-score · out of 100
#10
In 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. Grade B reflects the trust score band: A ≥ 80, B ≥ 65, C ≥ 50, D < 50. Evidence coverage B is separate — it grades how many independent signal types back the score (3 of 5), so a high score on thin evidence stays visible. Full methodology →

Signals refreshed 2026-09-26 06:32 UTC · Repo last pushed today

Rank Trend

2026-08-11 2026-09-26

Activity & Reach

Stars
1.1k
Forks
150
Last Push
2026-09-26
today
Commits (4 wk)
304
Downloads (7d)
695
npm
HN mentions (30d)
—
Open Issues
19
Rank Change
▲1
was #226

Analysis

Activity Inputs

78.5 / 100
StarsRepository reach
18.4 / 30
FreshnessLast push recency
25.0 / 25
ActivityRecent commits
25 / 25
CommunityFork signal
10.1 / 20

Supply Chain Trust

Package Provenance
Verified
npm attestation
OSSF Scorecard
4.1 / 10
OpenSSF Scorecard · scanned Sep 15, 2026
Signed Commits
1%
of last 100 commits verified
Binary-Artifacts 9
Branch-Protection 0
CI-Tests 10
CII-Best-Practices 0
Code-Review 0
Contributors 3
Dangerous-Workflow 10
Dependency-Update-Tool 10
Fuzzing 0
License 10
Maintained 10
Packaging 10
Pinned-Dependencies 2
SAST 0
Security-Policy 0
Signed-Releases 0
Token-Permissions 0
Vulnerabilities 0

Common questions about Browser4

Public supply-chain signals for Browser4 are strong: it has multiple independent trust indicators in place. This does not replace your own security review, but Browser4 carries less obvious unverified-evidence risk than projects with thin signals.
Does Browser4 publish package provenance?
Yes. Browser4's package releases carry build provenance attestations, which cryptographically link the published package back to its source repository and CI workflow.
Does Browser4 have an OpenSSF Scorecard?
Browser4 has an OpenSSF Scorecard score of 4.1/10. The Scorecard checks for branch protection, signed releases, dependency updates, fuzzing, code review, and other supply-chain hygiene items. See the full check breakdown on this page.
Is Browser4 actively maintained?
Actively maintained. The repository was pushed to within the last 1 day(s).
What license does Browser4 use?
Browser4 ships under Apache-2.0. A declared, OSI-approved license is one of the transparency signals HVTrust scores.
Are Browser4's commits signed?
1% of the last 100 commits to Browser4 are verified-signed (GPG, SSH, S/MIME, or GitHub's signing flow). Signed commits help confirm that code was authored by who the commit claims.

Not a safety endorsement. HVTracker describes what public signals show, not whether a project is safe for your use case. Run your own security review before adopting in production.

AI agent surface

MCP, providers, tool surface
Scored in HVTrust

These runtime-trust fields — detected from public repo docs and manifests — contribute a bounded adjustment to this project's HVTrust score alongside supply-chain evidence. The exact values each field can add or subtract are documented in the methodology → Compare this surface across every listed agent in the capability matrix →

MCP Server Support
medium confidence
Declared
MCP support appears present, but direct server implementation is less certain.
Detailed evidence is not shown in the public view.
External Service Dependencies
high confidence
4 detected
Public provider/service dependencies detected.
Credential signal: API keys or service config markers documented.
Tool / Plugin Surface
high confidence
Declared
Declared plugin/integration surface detected.
Detailed evidence is not shown in the public view.
Package Provenance Drift
high confidence
Match
Published package metadata matches the tracked repo
Detailed evidence is not shown in the public view.
  • MCP signal live
  • External deps live
  • Tool / plugin surface live
  • Package provenance drift live
How this surface has changed

Detected changes to Browser4's runtime surface and supply-chain posture, from daily public-signal snapshots. A change here means our detectors see something different — a genuinely changed capability, or better evidence of an existing one.

2026-09-24
Provider Added
Runtime surface grew — new detected provider dependency: Anthropic
2026-09-23
Tool Surface Changed
Detected tool/plugin surface changed: none → declared
2026-09-23
Provider Added
Runtime surface grew — new detected provider dependencies: DeepSeek, OpenAI, OpenRouter
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → declared
2026-09-23
Provenance Added
Package provenance attestation detected
2026-09-03
Tool Surface Changed
Detected tool/plugin surface changed: extension-based → declared

Maintain Browser4?

For maintainers

HVTrust scores Browser4 from public signals only — we never contact maintainers first. If a signal is wrong, stale, or missing (provenance you publish, a Scorecard you run, signed releases), tell us and we'll review it. Corrections are public and tracked on GitHub.

Submit a correction → Add the trust badge

Reputation Timeline

Signal history
Rank 13Listed 2HVTrust 2Surface 2Surface 2Scorecard 1Delisted 1Grade 1Provenance 1MCP 1
2026-09-24
Provider Added
Runtime surface grew — new detected provider dependency: Anthropic
2026-09-23
Tool Surface Changed
Detected tool/plugin surface changed: none → declared
2026-09-23
Provider Added
Runtime surface grew — new detected provider dependencies: DeepSeek, OpenAI, OpenRouter
2026-09-23
Mcp Status Changed
Detected MCP server support changed: none → declared
2026-09-23
Provenance Added
Package provenance attestation detected
2026-09-23
Grade Changed
Trust grade D → B
2026-09-23
Rank Moved
Rank rose 469 spots (#688 → #219)
2026-09-23
HVTrust Changed
HVTrust up 44.3pts (31.1 → 75.4)
2026-09-22
Newly Listed
First tracked at rank #688
2026-09-21
Removed From Active Tracking
Removed from active tracking
2026-09-19
Rank Moved
Rank dropped 10 spots (#207 → #217)
2026-09-15
Rank Moved
Rank dropped 15 spots (#189 → #204)
2026-09-07
Rank Moved
Rank dropped 13 spots (#169 → #182)
2026-09-05
Rank Moved
Rank dropped 33 spots (#137 → #170)
2026-09-03
Tool Surface Changed
Detected tool/plugin surface changed: extension-based → declared
2026-08-31
Rank Moved
Rank dropped 16 spots (#101 → #117)
2026-08-28
Scorecard Added
OSSF Scorecard: 4.8/10
2026-08-28
Rank Moved
Rank rose 128 spots (#229 → #101)
2026-08-28
HVTrust Changed
HVTrust up 10.2pts (66.7 → 76.9)
2026-08-26
Rank Moved
Rank dropped 17 spots (#204 → #221)
2026-08-24
Rank Moved
Rank dropped 13 spots (#192 → #205)
2026-08-22
Rank Moved
Rank rose 13 spots (#207 → #194)
2026-08-17
Rank Moved
Rank rose 13 spots (#203 → #190)
2026-08-13
Rank Moved
Rank dropped 13 spots (#182 → #195)
2026-08-12
Rank Moved
Rank rose 15 spots (#197 → #182)
2026-08-10
Newly Listed
First tracked at rank #197
GitHub → npm: browser4-cli

Embed Badge Badge guide for maintainers →

For maintainers
HVTrust 75.0 Grade B
Markdown:
[![HVTrust](https://hvtracker.net/badge/browser4.svg)](https://hvtracker.net/agents/browser4)
HTML:
<a href="https://hvtracker.net/agents/browser4"><img src="https://hvtracker.net/badge/browser4.svg" alt="HVTrust"></a>

Other agents in Browser & Computer Use

Data sources
GitHub REST API (repo, commits, stars, forks, license) · npm Registry (downloads, provenance) · OpenSSF Scorecard CLI
Each agent's signals refresh once daily across 6 staggered batches. Methodology v4.3 · Raw JSON