n8n Automation MCP Server
Enables AI assistants to fully automate n8n instances via 34 MCP tools, covering workflow creation, execution debugging, credential management, environment variables, tags, and user administration through natural language.
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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.
list_workflowsList all workflows in n8n with filtering by active status, tags, or name. Returns node counts and metadata.
get_workflowGet full details of a workflow including nodes, connections, and settings.
create_workflowCreate a new n8n workflow with nodes, connections, and settings. Optionally activate immediately.
update_workflowUpdate an existing workflow's name, nodes, connections, settings, tags, or active status.
delete_workflowPermanently delete a workflow by ID.
activate_workflowActivate a workflow so it runs automatically on triggers.
deactivate_workflowDeactivate a workflow so it stops running on triggers.
duplicate_workflowDuplicate an existing workflow.
export_workflowExport a workflow as a formatted JSON structure for backup or sharing.
import_workflowImport a workflow directly from a JSON string definition.
list_common_nodesGet documentation and JSON template snippets for common n8n node types (Webhook, Schedule, HTTP Request, Code, Switch, OpenAI, Slack).
list_executionsList workflow executions filtered by workflow ID, status (error/success/waiting/running/canceled), and date.
get_executionGet detailed node-by-node input and output data for a specific execution.
delete_executionDelete an execution record.
run_workflowManually trigger a workflow execution with optional payload data.
retry_executionRetry a failed execution using the workflow definition.
stop_executionStop or cancel a currently running execution.
list_tagsList all workflow tags.
create_tagCreate a new tag.
update_tagRename an existing tag.
delete_tagDelete a tag permanently.
list_credentialsList saved credentials.
get_credentialGet metadata for a credential (secret data is hidden).
create_credentialCreate a new credential instance.
update_credentialUpdate an existing credential.
delete_credentialDelete a credential.
list_credential_typesList supported credential types in n8n with optional search query.
list_variablesList n8n environment/instance variables.
create_variableCreate a custom environment variable in n8n.
update_variableUpdate an existing variable key or value.
delete_variableDelete an environment variable.
test_connectionHealth check: Test connection to n8n instance and verify API key and response latency.
list_usersList registered users in the n8n instance.
get_userGet details of a specific user by ID.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
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
Axios is Vulnerable to Denial of Service via __proto__ Key in mergeConfig
Axios is vulnerable to DoS attack through lack of data size check
N8N_API_KEYyour_n8n_api_key_hereN8N_BASE_URL"": "http://localhost:5678",All four hints declared on every tool
34/34 tools missing one or more hints — list_workflows (missing: destructiveHint, idempotentHint, openWorldHint); get_workflow (missing: destructiveHint, idempotentHint, openWorldHint); create_workflow (missing: idempotentHint, openWorldHint), +31 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 inputs are validated
Only 0/34 tool handlers declare input schemas (0%)
Declare an inputSchema with zod/joi/yup on every tool definition.
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, 15 high severity in production deps — @modelcontextprotocol/sdk@1.0.0 (high), axios@1.7.0 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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