n8n_get_node_info
Retrieve configuration details for n8n workflow nodes to understand their parameters and usage in automation.
Instructions
Get information about common n8n node types and their configurations.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| nodeType | Yes | Node type to get info about (e.g., "webhook", "httpRequest", "code", "if", "set") |
Implementation Reference
- src/tools/documentation-tools.ts:532-595 (handler)Main execution handler for the n8n_get_node_info tool. Retrieves node information from COMMON_NODES based on nodeType parameter.n8n_get_node_info: async ( args: Record<string, unknown> ): Promise<ToolResult> => { const nodeType = (args.nodeType as string)?.toLowerCase(); if (!nodeType) { // List all available nodes const nodeList = Object.entries(COMMON_NODES).map(([key, node]) => ({ key, type: node.type, displayName: node.displayName, description: node.description, })); return { content: [ { type: 'text' as const, text: JSON.stringify({ message: 'Available node types', nodes: nodeList, usage: 'Call n8n_get_node_info with nodeType parameter for detailed info', }, null, 2), }, ], }; } const nodeInfo = COMMON_NODES[nodeType]; if (!nodeInfo) { const availableNodes = Object.keys(COMMON_NODES).join(', '); return { content: [ { type: 'text' as const, text: JSON.stringify({ error: `Unknown node type: ${nodeType}`, availableNodes, hint: 'Use one of the available node types listed above', }, null, 2), }, ], isError: true, }; } return { content: [ { type: 'text' as const, text: JSON.stringify({ nodeType: nodeInfo.type, displayName: nodeInfo.displayName, description: nodeInfo.description, typeVersion: nodeInfo.typeVersion, defaultParameters: nodeInfo.defaultParameters, exampleConfig: nodeInfo.exampleConfig, usage: `Use this node in your workflow with type: "${nodeInfo.type}"`, }, null, 2), }, ], }; },
- Tool definition including name, description, and input schema for n8n_get_node_info.{ name: 'n8n_get_node_info', description: 'Get information about common n8n node types and their configurations.', inputSchema: { type: 'object', properties: { nodeType: { type: 'string', description: 'Node type to get info about (e.g., "webhook", "httpRequest", "code", "if", "set")', }, }, required: ['nodeType'], }, },
- src/tools/index.ts:12-16 (registration)Registration of tool definitions: n8n_get_node_info is included via documentationTools in the allTools array provided to MCP.export const allTools: ToolDefinition[] = [ ...documentationTools, // Documentation first for discoverability ...workflowTools, ...executionTools, ];
- src/server.ts:108-111 (registration)Handler dispatch registration: Routes calls to n8n_get_node_info via documentationToolHandlers lookup.if (name in documentationToolHandlers) { const handler = documentationToolHandlers[name as keyof typeof documentationToolHandlers]; return handler(args); }
- Supporting data structure COMMON_NODES providing node information used by the handler.const COMMON_NODES: Record<string, { type: string; displayName: string; description: string; typeVersion: number; defaultParameters: Record<string, unknown>; exampleConfig: Record<string, unknown>; }> = { webhook: { type: 'n8n-nodes-base.webhook', displayName: 'Webhook', description: 'Starts the workflow when a webhook is called. Can receive data via HTTP requests.', typeVersion: 2, defaultParameters: { httpMethod: 'POST', path: 'webhook', responseMode: 'onReceived', responseCode: 200, }, exampleConfig: { httpMethod: 'POST', path: 'my-webhook', responseMode: 'onReceived', responseData: 'allEntries', }, }, httpRequest: { type: 'n8n-nodes-base.httpRequest', displayName: 'HTTP Request', description: 'Makes HTTP requests to fetch or send data to any URL.', typeVersion: 4, defaultParameters: { method: 'GET', url: '', authentication: 'none', }, exampleConfig: { method: 'POST', url: 'https://api.example.com/data', authentication: 'none', sendBody: true, bodyParameters: { parameters: [ { name: 'key', value: '={{ $json.value }}' } ] }, }, }, code: { type: 'n8n-nodes-base.code', displayName: 'Code', description: 'Execute custom JavaScript or Python code.', typeVersion: 2, defaultParameters: { language: 'javaScript', mode: 'runOnceForAllItems', }, exampleConfig: { language: 'javaScript', mode: 'runOnceForAllItems', jsCode: `// Process all items const results = []; for (const item of $input.all()) { results.push({ json: { ...item.json, processed: true } }); } return results;`, }, }, 'if': { type: 'n8n-nodes-base.if', displayName: 'IF', description: 'Route items based on conditions. Has two outputs: true and false.', typeVersion: 2, defaultParameters: { conditions: { options: { caseSensitive: true, leftValue: '', typeValidation: 'strict', }, conditions: [], combinator: 'and', }, }, exampleConfig: { conditions: { options: { caseSensitive: true, leftValue: '', typeValidation: 'strict', }, conditions: [ { id: 'condition-1', leftValue: '={{ $json.status }}', rightValue: 'success', operator: { type: 'string', operation: 'equals', }, }, ], combinator: 'and', }, }, }, set: { type: 'n8n-nodes-base.set', displayName: 'Set', description: 'Set or modify data fields in items.', typeVersion: 3, defaultParameters: { mode: 'manual', duplicateItem: false, assignments: { assignments: [], }, }, exampleConfig: { mode: 'manual', duplicateItem: false, assignments: { assignments: [ { id: 'assignment-1', name: 'newField', value: '={{ $json.existingField }}', type: 'string', }, ], }, }, }, scheduleTrigger: { type: 'n8n-nodes-base.scheduleTrigger', displayName: 'Schedule Trigger', description: 'Starts the workflow on a schedule (cron-like).', typeVersion: 1, defaultParameters: { rule: { interval: [{ field: 'hours', minutesInterval: 1 }], }, }, exampleConfig: { rule: { interval: [ { field: 'cronExpression', expression: '0 9 * * 1-5', // Every weekday at 9 AM }, ], }, }, }, manualTrigger: { type: 'n8n-nodes-base.manualTrigger', displayName: 'Manual Trigger', description: 'Starts the workflow manually. Used for testing.', typeVersion: 1, defaultParameters: {}, exampleConfig: {}, }, merge: { type: 'n8n-nodes-base.merge', displayName: 'Merge', description: 'Merge data from multiple inputs.', typeVersion: 3, defaultParameters: { mode: 'append', }, exampleConfig: { mode: 'combine', mergeByFields: { values: [{ field1: 'id', field2: 'id' }], }, options: {}, }, }, splitInBatches: { type: 'n8n-nodes-base.splitInBatches', displayName: 'Split In Batches', description: 'Split items into batches for processing.', typeVersion: 3, defaultParameters: { batchSize: 10, }, exampleConfig: { batchSize: 10, options: { reset: false, }, }, }, respondToWebhook: { type: 'n8n-nodes-base.respondToWebhook', displayName: 'Respond to Webhook', description: 'Send a response back to the webhook caller.', typeVersion: 1, defaultParameters: { respondWith: 'allIncomingItems', responseCode: 200, }, exampleConfig: { respondWith: 'json', responseBody: '={{ $json }}', responseCode: 200, responseHeaders: { entries: [ { name: 'Content-Type', value: 'application/json' }, ], }, }, }, };