krexel-mcp (Syfer-web/krexel-mcp) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 9 tools. No publisher has claimed this listing.

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D
Caution
56/100

krexel-mcp

Enables AI assistants to deploy, manage, and rollback websites via the Krexel API, supporting site uploads, deploys, logs, rollbacks, environment variables, and status checks.

→ Syfer-web/krexel-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.

How we verified

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Who stands behind it

Syfer-web

Source: Glama

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Install from

Glamanot 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: 9 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 1 credential: KREXEL_MASTER_KEY
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// tools this server exposes9 tools

These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.

ship_site
list_deploys

List recent deploys from the local Krexel state file. Optionally filter by domain.

get_logs
rollback
set_env
get_status

Return current account, deploy count, platform, and state directory.

list_files

List the files in a deployed site (paths, sizes, sha256). Returns metadata only — use read_file to fetch content.

read_file

Read a single file's contents from a deployed site. Path is relative to the site root (e.g. 'index.html', 'assets/logo.svg').

edit_file

Patch a file on a live deployed site and ship a new patch deploy. The AI decides what to change; the MCP ships the patch. Returns the new deploy_id + preview_url.

// known CVEs in dependencies9 high13 low

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

high@modelcontextprotocol/sdk@1.0.4GHSA-w48q-cv73-mx4w

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

highnanoid@5.0.9GHSA-28wg-ghj8-5hjv

nanoid: non-secure generators can loop indefinitely with negative size

highnanoid@5.0.9GHSA-2v37-7h3g-55p8

nanoid: custom generators can loop indefinitely when size is zero

highnanoid@5.0.9GHSA-xwg4-73v4-xw9w

nanoid: Integer Overflow or Wraparound

highundici@7.1.0GHSA-4cwx-7wf7-3272

undici vulnerable to cross-user information disclosure and parse-time crash via degenerate private cache directives

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.
configKREXEL_HOMEState files are written under $ (default ~/.krexel/).
🔐 secretKREXEL_MASTER_KEY32-byte hex string for env-var encryption. Required for set_env.
// 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

9/9 tools missing one or more hints — ship_site (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_deploys (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_logs (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 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.

Tool test coverage

Only 2/9 tools referenced in tests (22%)

Write tests that reference each tool by name so every tool has at least one test.

Production dependencies are patched

0 critical, 9 high severity in production deps — @modelcontextprotocol/sdk@1.0.4 (high), nanoid@5.0.9 (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 4 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/syfer-web/krexel-mcp?variant=verified)](https://m8ven.ai/mcp/syfer-web/krexel-mcp)
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commit: c044c8d7b8f1a69928b7478295b09ba4decb88d7
code hash: 8cda8699e2ca026d0afdd99b796f9eeead247ffe3510d93ed45adeef9c5b140e
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