MCP N8n Workflow Builder
by salacosteAI-powered n8n workflow automation through natural language. MCP server enabling Claude AI & Cursor IDE to create, manage, and monitor workflows via Model Context Protocol. Multi-instance support, 17 tools, comprehensive docs. Build workflows conversationally without manual JSON editing.
MCP N8n Workflow Builder is an open-source mcp server by salacoste, written mainly in JavaScript, with 236 GitHub stars and the MIT license. Its code was last updated Sep 13, 2026.
Scan summary: scanned Nov 5, 2026 at commit ba48196. No capabilities flagged by our checks. Scan policy
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ba48196 · Nov 5, 2026 ScannedStatic, secrets and dependency checks completed with no critical findings.
Passed. This check ran and found nothing it flags.Static code scanpassPassed. This check ran and found nothing it flags.
Flagged. This check found an issue. See the findings below.Secrets scanfailFlagged. This check found an issue. See the findings below.
Flagged. This check found an issue. See the findings below.Dependency audit7 known vulnerabilitiesfailFlagged. This check found an issue. See the findings below.
Warning. This check found something worth reading in the findings below. It is not proof of a problem.ManifestnonewarnWarning. This check found something worth reading in the findings below. It is not proof of a problem.
Flagged. This check found an issue. See the findings below.BuildfailFlagged. This check found an issue. See the findings below.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Boot & handshaken/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Network egressn/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Not applicable. This check does not apply to this kind of project, or it was not run in this scan.Reproducible (×3)n/aNot applicable. This check does not apply to this kind of project, or it was not run in this scan.
Findings (20)
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.secrets issueDetails are available to the maintainer after claiming this listing.
- highHigh. Something risky that needs a close look before you install.dependencies issueDetails are available to the maintainer after claiming this listing.
- mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.pymdown-extensions@10.7.0: 4 known vulnerabilitiesPYSEC-2026-1825, PYSEC-2026-2999, PYSEC-2026-3609, PYSEC-2026-3654
requirements.txt - mediumMedium. Worth checking, often a vulnerable dependency or a setup problem.Install or build failed in a clean environmenti@izs.me added 389 packages in 21s > @kernel.salacoste/n8n-workflow-builder@0.9.3 build > tsc src/utils/responseValidation.ts(46,19): error TS2339: Property 'includes' does not exist on type 'string | number | true | string[] | AxiosHeaders'. Property 'includes' does not exist on type 'number'.
- lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/multi-instance/configuration.md:44 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key3 matches in this file
docs/getting-started/installation/configuration.md:255 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/STORIES-2.6.5-AND-2.6.6-SUMMARY.md:57 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key3 matches in this file
docs/n8n-api-docs/02-AUTHENTICATION.md:151 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
src/services/__tests__/environmentManager.test.ts:268 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/stories/epic-4/story-4.4-credentials-security-guidance.md:560 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/stories/epic-4/story-4.6-error-handling-patterns.md:1280 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: slack-bot-token2 matches in this file
docs/n8n-api-docs/30-CREDENTIALS-API.md:431 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key9 matches in this file
docs/n8n-api-docs/30-CREDENTIALS-API.md:372 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key2 matches in this file
docs/stories/epic-5/story-5.1-multi-instance-configuration-system.md:138 - lowLow. Minor, or common in normal tools. Shown for information.Possible example credential in docs/tests: generic-api-key
docs/stories/epic-5/story-5.5-multi-instance-documentation-examples.md:333 - lowLow. Minor, or common in normal tools. Shown for information.mkdocs-material@9.5.3: 1 known vulnerabilityPYSEC-2026-3864
requirements.txt - lowLow. Minor, or common in normal tools. Shown for information.idna@3.9.0: 1 known vulnerabilityPYSEC-2026-215
requirements.txt - lowLow. Minor, or common in normal tools. Shown for information.No manifest declaring network access and environment variables (agent.json)
Network activity
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