Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| MCP_MODE | No | The mode for the MCP server to run in | stdio |
| LOG_LEVEL | No | The log level for the server | error |
| N8N_API_KEY | No | API key for your n8n instance (required for n8n management tools) | |
| N8N_API_URL | No | URL of your n8n instance (required for n8n management tools) | |
| DISABLE_CONSOLE_OUTPUT | No | Whether to disable console output | true |
Schema
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| tools_documentation | Get documentation for n8n MCP tools. Call without parameters for quick start guide. Use topic parameter to get documentation for specific tools. Use depth='full' for comprehensive documentation. |
| list_nodes | List n8n nodes. Common: list_nodes({limit:200}) for all, list_nodes({category:'trigger'}) for triggers. Package: "n8n-nodes-base" or "@n8n/n8n-nodes-langchain". Categories: trigger/transform/output/input. |
| get_node_info | Get FULL node schema (100KB+). TIP: Use get_node_essentials first! Returns all properties/operations/credentials. Prefix required: "nodes-base.httpRequest" not "httpRequest". |
| search_nodes | Search nodes by keywords. Modes: OR (any word), AND (all words), FUZZY (typos OK). Primary nodes ranked first. Examples: "webhook"→Webhook, "http call"→HTTP Request. |
| list_ai_tools | List 263 AI-optimized nodes. Note: ANY node can be AI tool! Connect any node to AI Agent's tool port. Community nodes need N8N_COMMUNITY_PACKAGES_ALLOW_TOOL_USAGE=true. |
| get_node_documentation | Get readable docs with examples/auth/patterns. Better than raw schema! 87% coverage. Format: "nodes-base.slack" |
| get_database_statistics | Node stats: 525 total, 263 AI tools, 104 triggers, 87% docs coverage. Verifies MCP working. |
| get_node_essentials | Get 10-20 key properties only (<5KB vs 100KB+). USE THIS FIRST! Includes examples. Format: "nodes-base.httpRequest" |
| search_node_properties | Find specific properties in a node (auth, headers, body, etc). Returns paths and descriptions. |
| get_node_for_task | Get pre-configured node for tasks: post_json_request, receive_webhook, query_database, send_slack_message, etc. Use list_tasks for all. |
| list_tasks | List task templates by category: HTTP/API, Webhooks, Database, AI, Data Processing, Communication. |
| validate_node_operation | Validate node config. Checks required fields, types, operation rules. Returns errors with fixes. Essential for Slack/Sheets/DB nodes. |
| validate_node_minimal | Fast check for missing required fields only. No warnings/suggestions. Returns: list of missing fields. |
| get_property_dependencies | Shows property dependencies and visibility rules. Example: sendBody=true reveals body fields. Test visibility with optional config. |
| get_node_as_tool_info | How to use ANY node as AI tool. Shows requirements, use cases, examples. Works for all nodes, not just AI-marked ones. |
| list_node_templates | Find templates using specific nodes. 399 community workflows. Use FULL types: "n8n-nodes-base.httpRequest". |
| get_template | Get complete workflow JSON by ID. Ready to import. IDs from list_node_templates or search_templates. |
| search_templates | Search templates by name/description keywords. NOT for node types! For nodes use list_node_templates. Example: "chatbot". |
| get_templates_for_task | Curated templates by task: ai_automation, data_sync, webhooks, email, slack, data_transform, files, scheduling, api, database. |
| validate_workflow | Full workflow validation: structure, connections, expressions, AI tools. Returns errors/warnings/fixes. Essential before deploy. |
| validate_workflow_connections | Check workflow connections only: valid nodes, no cycles, proper triggers, AI tool links. Fast structure validation. |
| validate_workflow_expressions | Validate n8n expressions: syntax {{}}, variables ($json/$node), references. Returns errors with locations. |