Public record
Software health reportschema 0.34.0 · metrics 2.10.0 · 2026-10-07 04:06 UTC

browserbase / mcp-server-browserbase

Allow LLMs to control a browser with Browserbase and Stagehand

TypeScriptApache-2.0★ 3,405 stars⑂ 373 forkssince Dec 2024archivedView on GitHub ↗
KindCommand-line toolLibraryMCP serverhow this is determined

browserbase/mcp-server-browserbase holds a health index of 19 out of 100, placing it in the Critical band. It scores highest on Engineering Quality (78/100) and lowest on Security (47/100). The repository is archived, so no further maintenance is expected.

19
overall / 100
Critical

Software health index

Metrics are grouped into weighted categories on one standardized 1–100 scale. Overall starts as their weighted mean, calibrated against the distribution of the public record so bands carry percentile meaning; when public evidence triggers the High-Risk Jurisdiction Policy, the rating is adjusted and receives an At Risk ceiling of 34.

19
Exceptional93-100The record's top tier (≈ top 5%); essentially all checked criteria met
Excellent80-92Strong across the board; minor gaps
Good65-79Healthy; gaps are limited and manageable
Moderate50-64Acceptable with notable gaps; review recommended
Weak35-49Material weaknesses across several areas
At Risk20-34Significant weaknesses; adoption warrants caution
Critical1-19Severe problems (abandoned, single-maintainer, no hygiene)
VitalityCommunity &AdoptionSustainability &GovernanceEngineeringQualitySecurityAI Readiness

Score profile

Each axis is a category. The shape matters more than the average — a healthy subject fills the whole shape, while a spike-and-crater profile means strength in one dimension is masking risk in another.

The weighted overall 62 is calibrated to 69 on the published index scale (record calibration 2026-08-02).

Ownership

browserbaseOrganization
1,221 followers69 public repossince Jan 2024

This repository is backed by an organization — shared, accountable stewardship that can outlive any single maintainer.

Package ecosystems

RegistryPackageVersionDownloads / moVersionsLast publish
npm@browserbasehq/mcp3.0.09,5896190 days ago

Metrics by category

Vitality

Is the project alive — is code being written and are releases shipping?

48Weak · 21% of overall
How it's scored
18/36Push recency — last push 78 days ago
7.6/36Commit cadence — 11/52 weeks with commits
13.4/18Commit volume — 30 commits in the last year
0/10OpenSSF Scorecard: Maintained — project is archived
Inputs used
commits_last_year30
human_commit_share0.99
days_since_last_push78
active_weeks_last_year11
How it's scored
27/27Ships releases — 1 releases published
16.2/36Release recency — latest release 190 days ago
12.6/27Release cadence — cadence unknown (single release)
0/10OpenSSF Scorecard: Signed-Releases — no data
Inputs used
releases_count1
latest_release_tagv3.0.0
releases_from_tagsno
days_since_latest_release190
mean_days_between_releases—
Excluded from scoring (no data or not applicable): OpenSSF Scorecard: Signed-Releases. Remaining weights renormalized.

Community & Adoption

Does the project have users, downloads, attention, and a welcoming setup for contributors?

68Good · 17% of overall
How it's scored
57.3/60Stars — 3,405 stars
21.4/25Forks — 373 forks
7.8/15Watchers — 26 watchers
Inputs used
forks373
stars3,405
watchers26
growth_stateunverified
growth_factor_pct100
growth_unverified_reasonno_history
How it's scored
22.5/22.5README
22.5/22.5License — recognized license (Apache-2.0)
0/18CONTRIBUTING guide
0/13.5Code of conduct
0/7.2Issue template
0/6.3PR template
Inputs used
has_readmeyes
has_licenseyes
readme_badges0
has_contributingno
has_issue_templateno
has_code_of_conductno
readme_badge_services—
has_pull_request_templateno
How it's scored
53.1/80Monthly downloads — 9,589 downloads/month across npm
0/20Registry dependents — not reported by this ecosystem
Inputs used
packages@browserbasehq/mcp
dependents—
ecosystemsnpm
total_downloads—
monthly_downloads9,589
unverified_packages_excluded—
Excluded from scoring (no data or not applicable): Registry dependents. Remaining weights renormalized.

Sustainability & Governance

Will the project survive its people — bus factor, responsiveness, who backs it, and package upkeep?

69Good · 23% of overall
How it's scored
25.2/54Bus factor — 2 contributor(s) cover half of all commits
13.6/22.5Commit distribution — top contributor authored 40% of commits
13.5/13.5Contributor breadth — 15 contributors
10/10OpenSSF Scorecard: Contributors — project has 4 contributing companies or organizations
Inputs used
bus_factor2
contributors_sampled15
top_contributor_share0.395
How it's scored
15.5/42Issue resolution — 37% of issues closed
19.3/30PR acceptance — 79/123 decided PRs merged
0/13Newcomer PR acceptance — no first-time contributor's PR decided in 30d
15/15OpenSSF Scorecard: Code-Review — all changesets reviewed
Inputs used
merged_prs79
open_issues34
closed_issues20
prs_merged_7d0
prs_decided_7d0
prs_merged_30d0
prs_decided_30d0
issue_closed_ratio0.37
closed_unmerged_prs44
first_time_authors_30d0
first_time_prs_merged_30d0
first_time_prs_decided_30d0
Excluded from scoring (no data or not applicable): Newcomer PR acceptance. Remaining weights renormalized.
How it's scored
30/30Ownership backing — organization-owned
0/20Verified domain
22.2/25Owner reach — 1,221 followers of browserbase
18.4/25Track record — 69 public repos, account ~2 yr old
Inputs used
followers1,221
owner_typeOrganization
is_verifiedno
owner_loginbrowserbase
public_repos69
account_age_days980
How it's scored
25/25Published & resolvable — 1 package(s) on npm
26/35Publish recency — latest publish 190 days ago
20/20Version history — 6 published versions
20/20Not deprecated — active, not deprecated or yanked
Inputs used
packages@browserbasehq/mcp
ecosystemsnpm
any_deprecatedno
min_days_since_publish190

Engineering Quality

Are baseline engineering and documentation practices in place?

78Good · 19% of overall
How it's scored
24/24CI workflows — 3 workflow(s)
24/24Tests present
16/16Linter config — eslint.config.js
0/9.6Pre-commit hooks
0/6.4.editorconfig
16/20OpenSSF Scorecard: CI-Tests — 16 out of 20 merged PRs checked by a CI test -- score normalized to 8
Inputs used
has_ciyes
has_testsyes
has_editorconfigno
has_linter_configyes
has_precommit_configno
How it's scored
30/30README
0/25Documentation directory
15/15Documentation / homepage site — https://stagehand.dev
10/10Repository description
10/10Topics — 7 topics
10/10Wiki
Inputs used
topicsai, browser, chrome, chromium, mcp, playwright, puppeteer
has_wikiyes
homepagehttps://stagehand.dev
docs_sitehttps://stagehand.dev
has_readmeyes
has_docs_dirno
has_descriptionyes

Security

Are visible security and supply-chain practices strong, without unresolved high-risk jurisdiction exposure?

47Weak · 16% of overall
How it's scored
7.5/7.5Binary-Artifacts — no binaries found in the repo
3.8/7.5Branch-Protection — branch protection is not maximal on development and all release branches
2/2.5CI-Tests — 16 out of 20 merged PRs checked by a CI test -- score normalized to 8
0/2.5CII-Best-Practices — no effort to earn an OpenSSF best practices badge detected
7.5/7.5Code-Review — all changesets reviewed
2.5/2.5Contributors — project has 4 contributing companies or organizations
10/10Dangerous-Workflow — no dangerous workflow patterns detected
0/7.5Dependency-Update-Tool — no update tool detected
0/5Fuzzing — project is not fuzzed
2.5/2.5License — license file detected
0/7.5Maintained — project is archived
0/5Packaging — no data
0/5Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
0/5SAST — SAST tool is not run on all commits -- score normalized to 0
0/5Security-Policy — security policy file not detected
0/7.5Signed-Releases — no data
0/7.5Token-Permissions — detected GitHub workflow tokens with excessive permissions
0/7.5Vulnerabilities — 80 existing vulnerabilities detected
Inputs used
sourceopenssf_scorecard
checks_evaluated16
scorecard_versionv5.5.0
checks_inconclusive2
scorecard_aggregate3.9
Excluded from scoring (no data or not applicable): Packaging, Signed-Releases. Remaining weights renormalized.
How it's scored
35/35Direct dependencies free of known advisories — no direct dependency carries a known advisory
8.4/25Indirect dependencies free of known advisories — 2 affected: @fastify/busboy 2.1.1 (high 7.5), undici 5.29.0 (high 7.5)
33.7/40No advisories left outstanding — 1 advisory-carrying package(s) unaddressed past 90 days; oldest published 265 days ago
Inputs used
sourceosv
advisories15
affected_packages2
assessed_packages233
unassessed_packages0
affected_by_severityhigh 2
direct_affected_packages0
Matched the npm:@browserbasehq/mcp@3.0.0 runtime dependency closure — what installing the published package pulls in — 233 packages. Reachability is not analyzed.

AI Readiness

How well is the repo equipped to be developed and maintained with AI coding agents? Carries a deliberately small weight (4%): agent tooling is a real maintenance signal, but a repository with none can still reach 100/100.

59Moderate · 4% of overall
How it's scored
0/45Agent instructions — no CLAUDE.md / AGENTS.md / editor rules
15/15Machine-readable docs (llms.txt) — llms.txt served by the project website (https://stagehand.dev/llms.txt)
29.1/40Legible commit history — 54 of 99 human commits state their intent (structured subject or explanatory body)
Inputs used
has_llms_txtyes
llms_txt_urlhttps://stagehand.dev/llms.txt
legible_history_share0.545
agent_instruction_files—
agent_instruction_max_bytes—
How it's scored
0/18One-command bootstrap
22/22Automated tests
11/11Lint / format config — eslint.config.js
11/11Static type checking — tsconfig.json
10/10Reproducible environment — Dockerfile, lockfile
10/10Demonstrated agent practice — 6 of the last 100 commits agent-authored or agent-credited
0/8Automated maintenance — no automated dependency updates observed
0/10OpenSSF Scorecard: Pinned-Dependencies — dependency not pinned by hash detected -- score normalized to 0
Inputs used
has_nixno
has_testsyes
lockfilespnpm-lock.yaml
has_dockerfileyes
typed_languageyes
bootstrap_files—
has_devcontainerno
has_linter_configyes
typecheck_configstsconfig.json
agent_commit_share0.06
toolchain_manifests—
dependency_bot_commit_share0
How it's scored
45/45Type-checkable code — TypeScript (statically typed)
55/55Manageable file sizes — 0/27 source files over 60KB
Inputs used
primary_languageTypeScript
largest_source_bytes15,797
source_files_sampled27
oversized_source_files0
How it's scored
0/40API schema (OpenAPI/GraphQL/proto) — not applicable to this kind of software
20/20MCP server
0/40Runnable examples
Inputs used
example_dirs—
has_mcp_signalyes
api_schema_files—
interfaces_expected_of—
Excluded from scoring (no data or not applicable): API schema (OpenAPI/GraphQL/proto). Remaining weights renormalized.

Key facts

3,405GitHub stars
15contributors
30commits, last 12 months
78days since last push
1releases
2bus factor
34open issues
npmpackage ecosystems

Data collection warnings

  • Star history unavailable: GitHub GraphQL error: Resource not accessible by personal access token

More detail

Star and fork history 0 ★ / 373 ⇿
0Stars
373Forks
1Releases

When each star and fork was added, collected from GitHub and bucketed by day. Cumulative growth sits directly above the daily additions it is made of, so the two read against each other: steady organic accretion looks nothing like an abrupt, short-lived burst. Where that difference is measurable, it is reported as growth authenticity.

0125250375363142024-122025-112026-10
Major 1Minor 0Patch 0

Each point covers 2 days.

OpenSSF Scorecard 3.9 / 10
3.9aggregate

Independent, tool-agnostic security assessment from the open-source OpenSSF Scorecard. Each check rewards a security practice, not a specific vendor's tool. Checks Scorecard could not determine are marked n/a and excluded from the security score (never counted as zero).Scorecard v5.5.0 · 2026-10-07 04:05 UTC

10Binary-Artifactsno binaries found in the repo
5Branch-Protectionbranch protection is not maximal on development and all release branches
8CI-Tests16 out of 20 merged PRs checked by a CI test -- score normalized to 8
0CII-Best-Practicesno effort to earn an OpenSSF best practices badge detected
10Code-Reviewall changesets reviewed
10Contributorsproject has 4 contributing companies or organizations
10Dangerous-Workflowno dangerous workflow patterns detected
0Dependency-Update-Toolno update tool detected
0Fuzzingproject is not fuzzed
10Licenselicense file detected
0Maintainedproject is archived
n/aPackagingpackaging workflow not detected
0Pinned-Dependenciesdependency not pinned by hash detected -- score normalized to 0
0SASTSAST tool is not run on all commits -- score normalized to 0
0Security-Policysecurity policy file not detected
n/aSigned-Releasesno releases found
0Token-Permissionsdetected GitHub workflow tokens with excessive permissions
0Vulnerabilities80 existing vulnerabilities detected
Direct dependencies 6
RegistryPackageVersion constraintManifest
npm@browserbasehq/sdk^2.6.0package.json
npm@browserbasehq/stagehand^3.3.0package.json
npm@modelcontextprotocol/sdk^1.13.1package.json
npmcommander^14.0.0package.json
npmdotenv^16.4.6package.json
npmzod^3.25.67package.json
All dependencies 773

Full resolved dependency set from the GitHub dependency graph: 10 direct and 763 indirect (transitive) packages. The transitive closure is complete when the repository commits a lockfile.

RegistryPackageVersionRelation
npm@browserbasehq/sdk2.10.0direct
npm@browserbasehq/sdk2.6.0direct
npm@browserbasehq/stagehand3.3.0direct
npm@modelcontextprotocol/sdk1.15.1direct
npm@modelcontextprotocol/sdk1.17.5direct
npmcommander11.1.0direct
npmcommander14.0.0direct
npmdotenv16.6.1direct
npmzod3.23.8direct
npmzod3.25.76direct
npm@ai-sdk/amazon-bedrock3.0.99indirect
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npm@ai-sdk/openai2.0.59indirect
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npm@ai-sdk/provider1.1.3indirect
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npmwrappy1.0.2indirect
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npmy18n5.0.8indirect
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npmyargs17.7.2indirect
npmyargs-parser21.1.1indirect
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npmzod-to-json-schema3.24.6indirect
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Dependency advisories 2

Installing npm:@browserbasehq/mcp@3.0.0 pulls in 233 packages, direct and transitive: 2 carry known advisories, of which 0 are direct dependencies.

PackageVersionRelationSeverityAdvisoriesFixed in
@fastify/busboy2.1.1indirecthigh23.2.2
undici5.29.0indirecthigh138.10.2

An advisory means the version recorded in the dependency graph falls inside an advisory’s affected range. Reachability is not analysed, and the graph includes development and test pins — a finding may concern tooling rather than shipped software.

Raw JSON report machine-readable

Feedback

Spotted something off in this report, or have thoughts to share? Wrong measurements, missed tooling, ideas, questions — anything is welcome. Every message is read and gets a response.

The message is kept through sign-in.

Scores are signals, not warranties. They reflect publicly visible practices on GitHub — not a code audit, and not a security guarantee.

Missing data is excluded and weights renormalized, never scored as zero. Methodology is versioned and open: metrics v2.10.0, schema v0.34.0 — full methodology · metrics wiki.

How one result sits in the wider record: aggregate statistics — npm.