MCP, MCP server
Mcp N8N Builder
A Model Context Protocol (MCP) server for programmatic creation and management of n8n workflows.
Compatibility: Not stated.
Grade B
Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.
Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.
Rescanned at commit d77555be4528, unchanged since the check below.
NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV SECRETS_ENV_READ
Why this grade
- NETWORK_NO_FIXED_HOST Low
Makes a network call whose host is not written as a fixed address.
src/n8n-api-client.ts, line 61
const response = await fetch(url, options); - SECRETS_PATH_DOTENV Low
Mentions a .env file.
.gitignore, line 10
.env - SECRETS_ENV_READ Note
Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.
src/config.ts, line 17
n8n_api_key: process.env.N8N_API_KEY || '',
Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.
Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.
What was checked
Plain notes from the hygiene checks.
Permissions
Pass
No shell or command execution found, and no extra permission was declared.
Install and update
Pass
No install-time script found, and dependencies are pinned or absent.
Network
Concern
can reach a host that is not written as a fixed address.
NETWORK_NO_FIXED_HOST
src/n8n-api-client.ts, line 61
const response = await fetch(url, options);
src/node-validator.ts, line 146
const response = await fetch(
docs/n8n-api-client-implementation.md, line 105
const response = await fetch(url, options);
Secrets
Concern
reads a credential or environment file.
SECRETS_ENV_READ SECRETS_PATH_DOTENV
src/config.ts, line 17
n8n_api_key: process.env.N8N_API_KEY || '',
.gitignore, line 9
# Environment variables
.gitignore, line 10
.env
Show more
.gitignore, line 11
.env.local
Agent instructions
Pass
No instruction to ignore earlier instructions or to hide a step.
Obfuscation
Pass
No encoded or minified payload found.
Licence
Pass
A licence file is present (LICENSE).
Maintainer activity
Note
the latest commit is more than 365 days old.
MAINTAINER_STALE
No file path was stored.
2025-08-29T21:12:01+01:00
Note
Hygiene check of commit d77555be4528. can reach a host that is not written as a fixed address. reads a credential or environment file. the latest commit is more than 365 days old.
Date and source
Date checked:
github.com
Commit graded: d77555be45280e57575bc651e905f0d5d5a9b3c1
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