Barresider/x-mcp (Barresider/x-mcp) is an MCP server listed on the M8ven Trust Index. It scores 54 out of 100, grade D. It declares 21 tools. No publisher has claimed this listing.

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D
Caution
54/100

Barresider/x-mcp

An MCP Server to interact with X/Twitter besides the official API.

→ Barresider/x-mcp· listed on mcp_so

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

Barresider

Source: mcp.so

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Install from

mcp.sonot 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.

// key findings
⚠️
Known vulnerabilities in dependencies: 4 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 2 credentials: PROXY_PASSWORD, TWITTER_PASSWORD
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies4 high

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

high@modelcontextprotocol/sdk@1.12.0GHSA-345p-7cg4-v4c7

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

high@modelcontextprotocol/sdk@1.12.0GHSA-8r9q-7v3j-jr4g

Anthropic's MCP TypeScript SDK has a ReDoS vulnerability

high@modelcontextprotocol/sdk@1.12.0GHSA-w48q-cv73-mx4w

Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default

highplaywright@1.44.0GHSA-7mvr-c777-76hp

Playwright downloads and installs browsers without verifying the authenticity of the SSL certificate

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.
configAUTH_DIRplaywright/.auth
configMCP_PORT3000 # Port for HTTP/SSE transport
configMCP_TRANSPORTstdio # Options: stdio, sse, http
🔐 secretPROXY_PASSWORDproxy_password # Optional: separate password
configPROXY_URL"": "http://proxy-server:port"
configPROXY_USERNAMEproxy_username # Optional: separate username
configTWITTER_EMAIL
🔐 secretTWITTER_PASSWORD"": "your_twitter_password"
configTWITTER_PHONE
configTWITTER_USERNAME"": "your_twitter_username",
// quality suggestions

Tool annotations

No tools have read-only/destructive annotations

Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.

All four hints declared on every tool

21/21 tools missing one or more hints — tweet (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); thread (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); scrape_posts (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +18 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.

For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.

Tests exist

No test files found

Add tests that exercise each declared tool.

Secrets not logged

1 secret value sent to console.log

Redact or omit secret values from log output.

Production dependencies are patched

0 critical, 4 high severity in production deps — @modelcontextprotocol/sdk@1.12.0 (high), @modelcontextprotocol/sdk@1.12.0 (high)

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

Dependency freshness

2/9 production deps stale: playwright-extra@2023-03-01 (3.4y), puppeteer-extra-plugin-stealth@2023-04-11 (3.3y)

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 5 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/barresider/x-mcp?variant=verified)](https://m8ven.ai/mcp/barresider/x-mcp)
Shows verification status without the grade. Want the grade badge instead? Remove ?variant=verified from the URL.
commit: 77817e4898367d5f00f59f79621b46ae71b180fb
code hash: aa36d0f25a09331b57d70c2ec3fae5e6d92df407d4751a502156b938c124c599
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