Browserless (browserless/browserless-mcp) is an MCP server listed on the M8ven Trust Index. It scores 72 out of 100, grade C. It declares 5 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Caution
72/100

Browserless

MCP (Model Context Protocol) server for — expose the Browserless smart scraper API to LLM clients like Claude Desktop, Cursor, VS Code, and Windsurf.

→ browserless/browserless-mcp· listed on glama

Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.

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Who stands behind it

browserless

Source: Glama · also listed on ModelScope

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Install from

Glamanot scored hereModelScopenot scored here

The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.

⏳ This MCP is queued for scoring. Check back in a few minutes.
// key findings
⚠️
Known vulnerabilities in dependencies: 2 high
Affects packages this MCP installs at runtime. Upgrade or remove the affected dependency.
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 3 credentials: AMPLITUDE_API_KEY, BROWSERLESS_TOKEN, SUPABASE_OAUTH_CLIENT_SECRET
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies2 high

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

high@modelcontextprotocol/sdk@1.24.3GHSA-345p-7cg4-v4c7

@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse

high@modelcontextprotocol/sdk@1.24.3GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretAMPLITUDE_API_KEYNo — Amplitude project API key. Sends MCP usage analytics — SDK lifecycle events plus our own tool/skill events
configANALYTICS_ENABLED
configBROWSERLESS_API_URLe =https://your-browserless-instance.example.com \
configBROWSERLESS_CACHE_TTLNo 60000 Cache TTL in milliseconds (0 to disable)
configBROWSERLESS_DOWNLOAD_DIR
configBROWSERLESS_MAX_RETRIESNo 3 Max retry attempts for failed requests
configBROWSERLESS_TIMEOUTNo 30000 Request timeout in milliseconds
🔐 secretBROWSERLESS_TOKENe =your-token \
configMCP_BASE_URL
configMCP_COMPLIANCE_MODENo unset (full surface) Serve the reduced, directory-compliant surface. Fails closed: any set value except false/0/no/off enables it
configOAUTH_ADDITIONAL_REDIRECT_URI_PATTERNS
configOAUTH_ENABLED
configSQS_QUEUE_URL
configSQS_REGION
configSUPABASE_OAUTH_CLIENT_ID
🔐 secretSUPABASE_OAUTH_CLIENT_SECRET
configTRANSPORTNo stdio Transport type: stdio or httpStream
Deployment configuration, supplied by whoever hosts the server. Users are not asked for these.
deployPORT
deployREDIS_URL
deploySUPABASE_SERVICE_ROLE_KEY
deploySUPABASE_URL
// quality suggestions

No arbitrary install scripts

Has postinstall/preinstall script — runs arbitrary code on npm install

Remove postinstall/preinstall hooks unless they’re essential.

Production dependencies are patched

0 critical, 2 high severity in production deps — @modelcontextprotocol/sdk@1.24.3 (high), @modelcontextprotocol/sdk@1.24.3 (high)

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 2 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Verified](https://m8ven.ai/badge/mcp/browserless/browserless-mcp?variant=verified)](https://m8ven.ai/mcp/browserless/browserless-mcp)
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commit: 1061d7c008bdc4d10526b8ac0e096b8ddca8bed3
code hash: e38b49fba0fadbdaf300d79934aedfa0142fbd0305d3ab5f0928bea77570ed6c
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