n8n MCP Server
Enables users to manage workflows, monitor executions, and perform administrative tasks in n8n through natural language conversations with Claude. It provides over 40 tools to control self-hosted or cloud n8n instances via the Model Context Protocol.
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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Shravan1610
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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.
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.
n8n_list_workflowsList all workflows in n8n
n8n_get_workflowGet a specific workflow by ID
n8n_create_workflowCreate a new workflow
n8n_update_workflowUpdate an existing workflow
n8n_delete_workflowDelete a workflow
n8n_activate_workflowActivate a workflow
n8n_deactivate_workflowDeactivate a workflow
n8n_transfer_workflowTransfer a workflow to another project
n8n_get_workflow_tagsGet tags for a workflow
n8n_update_workflow_tagsUpdate tags for a workflow
n8n_list_executionsList workflow executions
n8n_get_executionGet details of a specific execution
n8n_delete_executionDelete an execution
n8n_retry_executionRetry a failed execution
n8n_create_credentialCreate a new credential
n8n_delete_credentialDelete a credential
n8n_get_credential_schemaGet the schema for a credential type
n8n_transfer_credentialTransfer a credential to another project
n8n_list_variablesList all environment variables
n8n_create_variableCreate a new environment variable
n8n_update_variableUpdate an environment variable
n8n_delete_variableDelete an environment variable
n8n_list_tagsList all tags
n8n_create_tagCreate a new tag
n8n_get_tagGet a specific tag by ID
n8n_update_tagUpdate a tag
n8n_delete_tagDelete a tag
n8n_list_usersList all users
n8n_create_userCreate a new user
n8n_get_userGet a specific user by ID
n8n_delete_userDelete a user
n8n_update_user_roleUpdate a user's role
n8n_list_projectsList all projects
n8n_create_projectCreate a new project
n8n_update_projectUpdate a project
n8n_delete_projectDelete a project
n8n_add_user_to_projectAdd a user to a project
n8n_remove_user_from_projectRemove a user from a project
n8n_update_user_in_projectUpdate a user's role in a project
n8n_generate_auditGenerate a security audit for your n8n instance
n8n_pull_source_controlPull changes from source control
n8n_health_checkCheck the health status of the n8n instance
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
axios Vulnerable to Full Man-in-the-Middle via Prototype Pollution Gadget in `config.proxy`
axios Vulnerable to Credential Theft and Response Hijacking via Prototype Pollution Gadget in Config Merge
N8N_API_KEYN8N_BASE_URLTool 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
42/42 tools missing one or more hints — n8n_list_workflows (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); n8n_get_workflow (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); n8n_create_workflow (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +39 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.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
0 critical, 14 high severity in production deps — @modelcontextprotocol/sdk@1.20.2 (high), @modelcontextprotocol/sdk@1.20.2 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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