The workflow JSON
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{
"name": "Vapi - Router Tool Calls",
"nodes": [
{
"id": "vr-webhook",
"name": "Webhook Vapi Tools",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
0,
300
],
"parameters": {
"httpMethod": "POST",
"path": "vapi-tools-router",
"responseMode": "responseNode",
"options": {}
}
},
{
"id": "vr-if-secret",
"name": "Validar Secret",
"type": "n8n-nodes-base.if",
"typeVersion": 2,
"position": [
220,
300
],
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict"
},
"conditions": [
{
"leftValue": "={{ $json.headers['x-vapi-secret'] }}",
"rightValue": "={{ $env.VAPI_TOOLS_SECRET }}",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"options": {}
}
},
{
"id": "vr-respond-401",
"name": "Responder 401",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
440,
460
],
"parameters": {
"respondWith": "json",
"responseBody": "={{ { \"error\": \"unauthorized\" } }}",
"options": {
"responseCode": 401
}
}
},
{
"id": "vr-separar",
"name": "Separar Tool Calls",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
440,
220
],
"parameters": {
"mode": "runOnceForAllItems",
"jsCode": "const body = $('Webhook Vapi Tools').first().json.body;\nconst toolCalls = body?.message?.toolCalls || [];\nconst callerPhone = body?.message?.call?.customer?.number || body?.message?.customer?.number || '';\nreturn toolCalls.map(tc => ({\n json: {\n toolCallId: tc.id,\n toolName: tc.function?.name || '',\n args: tc.function?.arguments || {},\n callerPhone\n }\n}));"
}
},
{
"id": "vr-switch",
"name": "Rutear por Tool",
"type": "n8n-nodes-base.switch",
"typeVersion": 3,
"position": [
660,
220
],
"parameters": {
"rules": {
"values": [
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict"
},
"conditions": [
{
"leftValue": "={{ $json.toolName }}",
"rightValue": "buscar_contexto",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"outputKey": "buscar_contexto"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict"
},
"conditions": [
{
"leftValue": "={{ $json.toolName }}",
"rightValue": "ver_disponibilidad",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"outputKey": "ver_disponibilidad"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict"
},
"conditions": [
{
"leftValue": "={{ $json.toolName }}",
"rightValue": "crear_turno",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"outputKey": "crear_turno"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict"
},
"conditions": [
{
"leftValue": "={{ $json.toolName }}",
"rightValue": "cambiar_turno",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"outputKey": "cambiar_turno"
},
{
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "strict"
},
"conditions": [
{
"leftValue": "={{ $json.toolName }}",
"rightValue": "cancelar_turno",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "and"
},
"outputKey": "cancelar_turno"
}
]
},
"fallbackOutput": "extra",
"options": {}
}
},
{
"id": "vr-prep-buscar",
"name": "Preparar Buscar Contexto",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
880,
-160
],
"parameters": {
"jsCode": "const { args, callerPhone, toolCallId } = $json;\nreturn [{ json: { telefono: args.telefono || callerPhone, toolCallId } }];"
}
},
{
"id": "vr-exec-buscar",
"name": "Exec Tool Buscar Contexto",
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.2,
"position": [
1100,
-160
],
"parameters": {
"workflowId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultName": "Tool - Buscar Contexto Paciente"
},
"mode": "each",
"options": {}
}
},
{
"id": "vr-fmt-buscar",
"name": "Formatear Buscar Contexto",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1320,
-160
],
"parameters": {
"jsCode": "const toolCallId = $('Preparar Buscar Contexto').item.json.toolCallId;\nreturn [{ json: { toolCallId, result: $json.resultado } }];"
}
},
{
"id": "vr-prep-disponibilidad",
"name": "Preparar Ver Disponibilidad",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
880,
20
],
"parameters": {
"jsCode": "const { args, toolCallId } = $json;\nreturn [{ json: { fecha: args.fecha, toolCallId } }];"
}
},
{
"id": "vr-exec-disponibilidad",
"name": "Exec Tool Ver Disponibilidad",
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.2,
"position": [
1100,
20
],
"parameters": {
"workflowId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultName": "Tool - Ver Disponibilidad"
},
"mode": "each",
"options": {}
}
},
{
"id": "vr-fmt-disponibilidad",
"name": "Formatear Ver Disponibilidad",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1320,
20
],
"parameters": {
"jsCode": "const toolCallId = $('Preparar Ver Disponibilidad').item.json.toolCallId;\nreturn [{ json: { toolCallId, result: $json.resultado } }];"
}
},
{
"id": "vr-prep-crear",
"name": "Preparar Crear Turno",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
880,
200
],
"parameters": {
"jsCode": "const { args, callerPhone, toolCallId } = $json;\nreturn [{ json: { telefono: args.telefono || callerPhone, nombre: args.nombre, fecha: args.fecha, hora: args.hora, servicio: args.servicio, toolCallId } }];"
}
},
{
"id": "vr-exec-crear",
"name": "Exec Tool Crear Turno",
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.2,
"position": [
1100,
200
],
"parameters": {
"workflowId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultName": "Tool - Crear Turno"
},
"mode": "each",
"options": {}
}
},
{
"id": "vr-fmt-crear",
"name": "Formatear Crear Turno",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1320,
200
],
"parameters": {
"jsCode": "const toolCallId = $('Preparar Crear Turno').item.json.toolCallId;\nreturn [{ json: { toolCallId, result: $json.resultado } }];"
}
},
{
"id": "vr-prep-cambiar",
"name": "Preparar Cambiar Turno",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
880,
380
],
"parameters": {
"jsCode": "const { args, callerPhone, toolCallId } = $json;\nreturn [{ json: { telefono: args.telefono || callerPhone, fecha_actual: args.fecha_actual, fecha_nueva: args.fecha_nueva, hora_nueva: args.hora_nueva, nombre: args.nombre, servicio: args.servicio, toolCallId } }];"
}
},
{
"id": "vr-exec-cambiar",
"name": "Exec Tool Cambiar Turno",
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.2,
"position": [
1100,
380
],
"parameters": {
"workflowId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultName": "Tool - Cambiar Turno"
},
"mode": "each",
"options": {}
}
},
{
"id": "vr-fmt-cambiar",
"name": "Formatear Cambiar Turno",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1320,
380
],
"parameters": {
"jsCode": "const toolCallId = $('Preparar Cambiar Turno').item.json.toolCallId;\nreturn [{ json: { toolCallId, result: $json.resultado } }];"
}
},
{
"id": "vr-prep-cancelar",
"name": "Preparar Cancelar Turno",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
880,
560
],
"parameters": {
"jsCode": "const { args, callerPhone, toolCallId } = $json;\nreturn [{ json: { telefono: args.telefono || callerPhone, fecha: args.fecha, nombre: args.nombre, toolCallId } }];"
}
},
{
"id": "vr-exec-cancelar",
"name": "Exec Tool Cancelar Turno",
"type": "n8n-nodes-base.executeWorkflow",
"typeVersion": 1.2,
"position": [
1100,
560
],
"parameters": {
"workflowId": {
"__rl": true,
"mode": "list",
"value": "",
"cachedResultName": "Tool - Cancelar Turno"
},
"mode": "each",
"options": {}
}
},
{
"id": "vr-fmt-cancelar",
"name": "Formatear Cancelar Turno",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1320,
560
],
"parameters": {
"jsCode": "const toolCallId = $('Preparar Cancelar Turno').item.json.toolCallId;\nreturn [{ json: { toolCallId, result: $json.resultado } }];"
}
},
{
"id": "vr-fmt-desconocida",
"name": "Formatear Tool Desconocida",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
880,
740
],
"parameters": {
"jsCode": "const { toolCallId, toolName } = $json;\nreturn [{ json: { toolCallId, result: 'ERROR: tool desconocida (' + toolName + ')' } }];"
}
},
{
"id": "vr-construir-respuesta",
"name": "Construir Respuesta Vapi",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
1540,
220
],
"parameters": {
"mode": "runOnceForAllItems",
"jsCode": "return [{ json: { results: $input.all().map(i => ({ toolCallId: i.json.toolCallId, result: i.json.result })) } }];"
}
},
{
"id": "vr-respond-ok",
"name": "Responder 200",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1,
"position": [
1760,
220
],
"parameters": {
"respondWith": "json",
"responseBody": "={{ $json }}",
"options": {
"responseCode": 200
}
}
}
],
"connections": {
"Webhook Vapi Tools": {
"main": [
[
{
"node": "Validar Secret",
"type": "main",
"index": 0
}
]
]
},
"Validar Secret": {
"main": [
[
{
"node": "Separar Tool Calls",
"type": "main",
"index": 0
}
],
[
{
"node": "Responder 401",
"type": "main",
"index": 0
}
]
]
},
"Separar Tool Calls": {
"main": [
[
{
"node": "Rutear por Tool",
"type": "main",
"index": 0
}
]
]
},
"Rutear por Tool": {
"main": [
[
{
"node": "Preparar Buscar Contexto",
"type": "main",
"index": 0
}
],
[
{
"node": "Preparar Ver Disponibilidad",
"type": "main",
"index": 0
}
],
[
{
"node": "Preparar Crear Turno",
"type": "main",
"index": 0
}
],
[
{
"node": "Preparar Cambiar Turno",
"type": "main",
"index": 0
}
],
[
{
"node": "Preparar Cancelar Turno",
"type": "main",
"index": 0
}
],
[
{
"node": "Formatear Tool Desconocida",
"type": "main",
"index": 0
}
]
]
},
"Preparar Buscar Contexto": {
"main": [
[
{
"node": "Exec Tool Buscar Contexto",
"type": "main",
"index": 0
}
]
]
},
"Exec Tool Buscar Contexto": {
"main": [
[
{
"node": "Formatear Buscar Contexto",
"type": "main",
"index": 0
}
]
]
},
"Formatear Buscar Contexto": {
"main": [
[
{
"node": "Construir Respuesta Vapi",
"type": "main",
"index": 0
}
]
]
},
"Preparar Ver Disponibilidad": {
"main": [
[
{
"node": "Exec Tool Ver Disponibilidad",
"type": "main",
"index": 0
}
]
]
},
"Exec Tool Ver Disponibilidad": {
"main": [
[
{
"node": "Formatear Ver Disponibilidad",
"type": "main",
"index": 0
}
]
]
},
"Formatear Ver Disponibilidad": {
"main": [
[
{
"node": "Construir Respuesta Vapi",
"type": "main",
"index": 0
}
]
]
},
"Preparar Crear Turno": {
"main": [
[
{
"node": "Exec Tool Crear Turno",
"type": "main",
"index": 0
}
]
]
},
"Exec Tool Crear Turno": {
"main": [
[
{
"node": "Formatear Crear Turno",
"type": "main",
"index": 0
}
]
]
},
"Formatear Crear Turno": {
"main": [
[
{
"node": "Construir Respuesta Vapi",
"type": "main",
"index": 0
}
]
]
},
"Preparar Cambiar Turno": {
"main": [
[
{
"node": "Exec Tool Cambiar Turno",
"type": "main",
"index": 0
}
]
]
},
"Exec Tool Cambiar Turno": {
"main": [
[
{
"node": "Formatear Cambiar Turno",
"type": "main",
"index": 0
}
]
]
},
"Formatear Cambiar Turno": {
"main": [
[
{
"node": "Construir Respuesta Vapi",
"type": "main",
"index": 0
}
]
]
},
"Preparar Cancelar Turno": {
"main": [
[
{
"node": "Exec Tool Cancelar Turno",
"type": "main",
"index": 0
}
]
]
},
"Exec Tool Cancelar Turno": {
"main": [
[
{
"node": "Formatear Cancelar Turno",
"type": "main",
"index": 0
}
]
]
},
"Formatear Cancelar Turno": {
"main": [
[
{
"node": "Construir Respuesta Vapi",
"type": "main",
"index": 0
}
]
]
},
"Formatear Tool Desconocida": {
"main": [
[
{
"node": "Construir Respuesta Vapi",
"type": "main",
"index": 0
}
]
]
},
"Construir Respuesta Vapi": {
"main": [
[
{
"node": "Responder 200",
"type": "main",
"index": 0
}
]
]
}
},
"settings": {
"executionOrder": "v1"
}
}
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About this workflow
Vapi - Router Tool Calls. Webhook trigger; 23 nodes.
Source: https://github.com/SMsimarco/RecepIA---n8n/blob/main/voz/vapi_router_tools.json — original creator credit. Request a take-down →
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