This workflow follows the HTTP Request → Supabase recipe pattern — see all workflows that pair these two integrations.
The workflow JSON
Copy or download the full n8n JSON below. Paste it into a new n8n workflow, add your credentials, activate. Full import guide →
{
"name": "Voxa W3 \u2014 Post-Call Processing",
"nodes": [
{
"parameters": {
"httpMethod": "POST",
"path": "post-call",
"responseMode": "responseNode",
"options": {
"responseHeaders": {
"entries": [
{
"name": "X-Voxa-Workflow",
"value": "post-call"
}
]
}
}
},
"id": "node-webhook-postcall",
"name": "Webhook (POST /post-call)",
"type": "n8n-nodes-base.webhook",
"typeVersion": 2,
"position": [
-2200,
0
]
},
{
"parameters": {
"respondWith": "json",
"responseBody": "={\n \"received\": true\n}",
"options": {
"responseCode": 200
}
},
"id": "node-respond-immediate",
"name": "Respond immediately",
"type": "n8n-nodes-base.respondToWebhook",
"typeVersion": 1.1,
"position": [
-1980,
-200
]
},
{
"parameters": {
"jsCode": "// Derive billing minutes + canonical event fields from the EL post-call payload.\nconst body = $input.first().json.body || $input.first().json;\nconst data = body?.data || {};\n\nconst startedAt = data.started_at || data.metadata?.start_time;\nconst endedAt = data.ended_at || data.metadata?.end_time;\nconst metaSecs = data.metadata?.call_duration_secs;\n\nlet durationSeconds = 0;\nif (typeof metaSecs === 'number' && metaSecs >= 0) {\n durationSeconds = metaSecs;\n} else if (startedAt && endedAt) {\n const ms = new Date(endedAt).getTime() - new Date(startedAt).getTime();\n durationSeconds = Math.max(0, Math.round(ms / 1000));\n}\n\nconst minutes = Math.max(0, Math.ceil(durationSeconds / 60));\n\nreturn [{\n json: {\n conversation_id: data.conversation_id || data.metadata?.conversation_id || '',\n elevenlabs_agent_id: data.agent_id || data.metadata?.agent_id || '',\n caller_phone: data.caller_id || data.metadata?.caller_id || null,\n duration_seconds: durationSeconds,\n minutes: minutes,\n minutes_str: String(minutes),\n transcript: data.transcript || [],\n transcript_text: Array.isArray(data.transcript)\n ? data.transcript.map(t => `${t.role || t.speaker || 'speaker'}: ${t.message || t.text || ''}`).join('\\n')\n : (typeof data.transcript === 'string' ? data.transcript : ''),\n summary: data.summary || data.analysis?.summary || '',\n audio_url: data.audio_url || data.recording_url || null,\n language_detected: data.language || data.metadata?.detected_language || null,\n started_at: startedAt || new Date().toISOString(),\n ended_at: endedAt || new Date().toISOString()\n }\n}];"
},
"id": "node-derive",
"name": "Code derive",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
-1980,
100
]
},
{
"parameters": {
"operation": "getAll",
"tableId": "agents",
"returnAll": false,
"limit": 1,
"filterType": "manual",
"matchType": "allFilters",
"filters": {
"conditions": [
{
"keyName": "elevenlabs_agent_id",
"condition": "eq",
"keyValue": "={{ $json.elevenlabs_agent_id }}"
}
]
}
},
"id": "node-resolve-agent",
"name": "Supabase resolve agent",
"type": "n8n-nodes-base.supabase",
"typeVersion": 1,
"position": [
-1760,
100
],
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "getAll",
"tableId": "businesses",
"returnAll": false,
"limit": 1,
"filterType": "manual",
"matchType": "allFilters",
"filters": {
"conditions": [
{
"keyName": "id",
"condition": "eq",
"keyValue": "={{ $json.business_id }}"
}
]
}
},
"id": "node-resolve-business",
"name": "Supabase resolve business",
"type": "n8n-nodes-base.supabase",
"typeVersion": 1,
"position": [
-1540,
100
],
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "getAll",
"tableId": "subscriptions",
"returnAll": false,
"limit": 1,
"filterType": "manual",
"matchType": "allFilters",
"filters": {
"conditions": [
{
"keyName": "business_id",
"condition": "eq",
"keyValue": "={{ $('Supabase resolve agent').item.json.business_id }}"
}
]
}
},
"id": "node-resolve-sub",
"name": "Supabase resolve subscription",
"type": "n8n-nodes-base.supabase",
"typeVersion": 1,
"position": [
-1320,
100
],
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"method": "POST",
"url": "https://api.stripe.com/v1/billing/meter_events",
"authentication": "genericCredentialType",
"genericAuthType": "httpBasicAuth",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "Stripe-Version",
"value": "2025-03-31.basil"
}
]
},
"sendBody": true,
"contentType": "form-urlencoded",
"bodyParameters": {
"parameters": [
{
"name": "event_name",
"value": "call_minutes"
},
{
"name": "payload[stripe_customer_id]",
"value": "={{ $json.stripe_customer_id }}"
},
{
"name": "payload[value]",
"value": "={{ $('Code derive').item.json.minutes_str }}"
},
{
"name": "identifier",
"value": "={{ $('Code derive').item.json.conversation_id }}_meter"
}
]
},
"options": {
"timeout": 10000,
"retry": {
"retry": {
"maxTries": 3,
"waitBetweenTries": 1000
}
}
}
},
"id": "node-stripe-meter",
"name": "HTTP stripe.meterEvents.create",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-1100,
100
],
"credentials": {
"httpBasicAuth": {
"name": "<your credential>"
}
},
"onError": "continueRegularOutput"
},
{
"parameters": {
"method": "POST",
"url": "https://api.anthropic.com/v1/messages",
"sendHeaders": true,
"headerParameters": {
"parameters": [
{
"name": "x-api-key",
"value": "={{ $env.ANTHROPIC_API_KEY }}"
},
{
"name": "anthropic-version",
"value": "2023-06-01"
},
{
"name": "content-type",
"value": "application/json"
}
]
},
"sendBody": true,
"specifyBody": "json",
"jsonBody": "={\n \"model\": \"claude-opus-4-7\",\n \"max_tokens\": 1024,\n \"messages\": [\n {\n \"role\": \"user\",\n \"content\": \"You will extract structured data from a call transcript. Return ONLY a valid JSON object, no preamble, no markdown fences. Schema: {\\\"customer_name\\\": string | null, \\\"customer_phone\\\": string | null, \\\"intent\\\": string, \\\"lead_score\\\": number (0-10), \\\"sentiment\\\": 'positive' | 'neutral' | 'negative' | 'angry', \\\"follow_up_action\\\": string, \\\"summary_one_line\\\": string}.\\n\\nTranscript:\\n{{ JSON.stringify($('Code derive').item.json.transcript_text).slice(1, -1) }}\"\n }\n ]\n}",
"options": {
"timeout": 30000,
"retry": {
"retry": {
"maxTries": 2,
"waitBetweenTries": 2000
}
}
}
},
"id": "node-anthropic",
"name": "HTTP anthropic.extract",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
-880,
100
],
"onError": "continueRegularOutput"
},
{
"parameters": {
"jsCode": "// Robustly parse Claude's JSON output, with safe defaults.\nconst response = $input.first().json;\nlet extracted = {\n customer_name: null,\n customer_phone: null,\n intent: 'inquiry',\n lead_score: 5,\n sentiment: 'neutral',\n follow_up_action: 'none',\n summary_one_line: ''\n};\n\ntry {\n const text = response?.content?.[0]?.text || '';\n // Strip markdown fences if Claude added them anyway\n const cleaned = text\n .replace(/^```(?:json)?\\s*/i, '')\n .replace(/```\\s*$/, '')\n .trim();\n const parsed = JSON.parse(cleaned);\n extracted = {\n customer_name: parsed.customer_name ?? null,\n customer_phone: parsed.customer_phone ?? null,\n intent: typeof parsed.intent === 'string' ? parsed.intent : 'inquiry',\n lead_score: Number.isFinite(parsed.lead_score)\n ? Math.max(0, Math.min(10, Math.round(parsed.lead_score)))\n : 5,\n sentiment: ['positive', 'neutral', 'negative', 'angry'].includes(parsed.sentiment)\n ? parsed.sentiment\n : 'neutral',\n follow_up_action: typeof parsed.follow_up_action === 'string' ? parsed.follow_up_action : 'none',\n summary_one_line: typeof parsed.summary_one_line === 'string' ? parsed.summary_one_line : ''\n };\n} catch (err) {\n // Defaults already set above; surface the error in a side-channel field.\n extracted.summary_one_line = 'Extraction failed; using defaults.';\n}\n\nreturn [{ json: extracted }];"
},
"id": "node-parse-extract",
"name": "Code parse extraction",
"type": "n8n-nodes-base.code",
"typeVersion": 2,
"position": [
-660,
100
]
},
{
"parameters": {
"operation": "upsert",
"tableId": "calls",
"filterType": "manual",
"matchType": "allFilters",
"filters": {
"conditions": [
{
"keyName": "elevenlabs_conversation_id",
"condition": "eq",
"keyValue": "={{ $('Code derive').item.json.conversation_id }}"
}
]
},
"fieldsUi": {
"fieldValues": [
{
"fieldId": "agent_id",
"fieldValue": "={{ $('Supabase resolve agent').item.json.id }}"
},
{
"fieldId": "business_id",
"fieldValue": "={{ $('Supabase resolve agent').item.json.business_id }}"
},
{
"fieldId": "elevenlabs_conversation_id",
"fieldValue": "={{ $('Code derive').item.json.conversation_id }}"
},
{
"fieldId": "caller_phone",
"fieldValue": "={{ $('Code derive').item.json.caller_phone }}"
},
{
"fieldId": "duration_seconds",
"fieldValue": "={{ $('Code derive').item.json.duration_seconds }}"
},
{
"fieldId": "transcript",
"fieldValue": "={{ $('Code derive').item.json.transcript }}"
},
{
"fieldId": "audio_url",
"fieldValue": "={{ $('Code derive').item.json.audio_url }}"
},
{
"fieldId": "language_detected",
"fieldValue": "={{ $('Code derive').item.json.language_detected }}"
},
{
"fieldId": "summary",
"fieldValue": "={{ $json.summary_one_line || $('Code derive').item.json.summary }}"
},
{
"fieldId": "status",
"fieldValue": "completed"
}
]
}
},
"id": "node-insert-call",
"name": "Supabase upsert calls",
"type": "n8n-nodes-base.supabase",
"typeVersion": 1,
"position": [
-440,
100
],
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
}
},
{
"parameters": {
"operation": "create",
"tableId": "meter_events",
"fieldsUi": {
"fieldValues": [
{
"fieldId": "call_id",
"fieldValue": "={{ $json.id }}"
},
{
"fieldId": "business_id",
"fieldValue": "={{ $('Supabase resolve agent').item.json.business_id }}"
},
{
"fieldId": "stripe_event_id",
"fieldValue": "={{ $('HTTP stripe.meterEvents.create').item.json.id || ($('Code derive').item.json.conversation_id + '_meter') }}"
},
{
"fieldId": "minutes_billed",
"fieldValue": "={{ $('Code derive').item.json.minutes }}"
}
]
}
},
"id": "node-insert-meter",
"name": "Supabase insert meter_event",
"type": "n8n-nodes-base.supabase",
"typeVersion": 1,
"position": [
-220,
100
],
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
},
"onError": "continueRegularOutput"
},
{
"parameters": {
"operation": "upsert",
"tableId": "leads",
"filterType": "manual",
"matchType": "allFilters",
"filters": {
"conditions": [
{
"keyName": "call_id",
"condition": "eq",
"keyValue": "={{ $('Supabase upsert calls').item.json.id }}"
}
]
},
"fieldsUi": {
"fieldValues": [
{
"fieldId": "call_id",
"fieldValue": "={{ $('Supabase upsert calls').item.json.id }}"
},
{
"fieldId": "business_id",
"fieldValue": "={{ $('Supabase resolve agent').item.json.business_id }}"
},
{
"fieldId": "customer_name",
"fieldValue": "={{ $('Code parse extraction').item.json.customer_name }}"
},
{
"fieldId": "customer_phone",
"fieldValue": "={{ $('Code parse extraction').item.json.customer_phone || $('Code derive').item.json.caller_phone }}"
},
{
"fieldId": "intent",
"fieldValue": "={{ $('Code parse extraction').item.json.intent }}"
},
{
"fieldId": "lead_score",
"fieldValue": "={{ $('Code parse extraction').item.json.lead_score }}"
},
{
"fieldId": "sentiment",
"fieldValue": "={{ $('Code parse extraction').item.json.sentiment }}"
},
{
"fieldId": "follow_up_action",
"fieldValue": "={{ $('Code parse extraction').item.json.follow_up_action }}"
},
{
"fieldId": "notes",
"fieldValue": "={{ $('Code parse extraction').item.json.summary_one_line }}"
},
{
"fieldId": "status",
"fieldValue": "new"
}
]
}
},
"id": "node-upsert-lead",
"name": "Supabase upsert lead",
"type": "n8n-nodes-base.supabase",
"typeVersion": 1,
"position": [
0,
100
],
"credentials": {
"supabaseApi": {
"name": "<your credential>"
}
},
"onError": "continueRegularOutput"
},
{
"parameters": {
"conditions": {
"options": {
"caseSensitive": true,
"leftValue": "",
"typeValidation": "loose"
},
"conditions": [
{
"id": "if-score",
"leftValue": "={{ $('Code parse extraction').item.json.lead_score }}",
"rightValue": 7,
"operator": {
"type": "number",
"operation": "gte"
}
},
{
"id": "if-sentiment",
"leftValue": "={{ $('Code parse extraction').item.json.sentiment }}",
"rightValue": "angry",
"operator": {
"type": "string",
"operation": "equals"
}
}
],
"combinator": "or"
},
"options": {}
},
"id": "node-if-hot",
"name": "IF hot lead",
"type": "n8n-nodes-base.if",
"typeVersion": 2.2,
"position": [
220,
100
]
},
{
"parameters": {
"method": "POST",
"url": "=https://api.twilio.com/2010-04-01/Accounts/{{ $env.TWILIO_ACCOUNT_SID }}/Messages.json",
"authentication": "genericCredentialType",
"genericAuthType": "httpBasicAuth",
"sendBody": true,
"contentType": "form-urlencoded",
"bodyParameters": {
"parameters": [
{
"name": "From",
"value": "=whatsapp:{{ $env.TWILIO_WHATSAPP_FROM }}"
},
{
"name": "To",
"value": "=whatsapp:{{ $('Supabase resolve business').item.json.owner_whatsapp }}"
},
{
"name": "Body",
"value": "=\ud83d\udd25 Hot lead \u2014 Name: {{ $('Code parse extraction').item.json.customer_name || 'Unknown' }} ({{ $('Code parse extraction').item.json.customer_phone || $('Code derive').item.json.caller_phone || 'no phone' }}). Intent: {{ $('Code parse extraction').item.json.intent }}. Score: {{ $('Code parse extraction').item.json.lead_score }}/10. Sentiment: {{ $('Code parse extraction').item.json.sentiment }}. Summary: {{ $('Code parse extraction').item.json.summary_one_line }}"
}
]
},
"options": {
"timeout": 10000
}
},
"id": "node-hot-whatsapp",
"name": "HTTP twilio.whatsapp.hotLead",
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.2,
"position": [
440,
20
],
"credentials": {
"httpBasicAuth": {
"name": "<your credential>"
}
},
"onError": "continueRegularOutput"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "noop-1",
"name": "skipped",
"value": "=not a hot lead",
"type": "string"
}
]
},
"options": {}
},
"id": "node-noop",
"name": "Set skip",
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [
440,
200
]
}
],
"connections": {
"Webhook (POST /post-call)": {
"main": [
[
{
"node": "Respond immediately",
"type": "main",
"index": 0
},
{
"node": "Code derive",
"type": "main",
"index": 0
}
]
]
},
"Code derive": {
"main": [
[
{
"node": "Supabase resolve agent",
"type": "main",
"index": 0
}
]
]
},
"Supabase resolve agent": {
"main": [
[
{
"node": "Supabase resolve business",
"type": "main",
"index": 0
}
]
]
},
"Supabase resolve business": {
"main": [
[
{
"node": "Supabase resolve subscription",
"type": "main",
"index": 0
}
]
]
},
"Supabase resolve subscription": {
"main": [
[
{
"node": "HTTP stripe.meterEvents.create",
"type": "main",
"index": 0
}
]
]
},
"HTTP stripe.meterEvents.create": {
"main": [
[
{
"node": "HTTP anthropic.extract",
"type": "main",
"index": 0
}
]
]
},
"HTTP anthropic.extract": {
"main": [
[
{
"node": "Code parse extraction",
"type": "main",
"index": 0
}
]
]
},
"Code parse extraction": {
"main": [
[
{
"node": "Supabase upsert calls",
"type": "main",
"index": 0
}
]
]
},
"Supabase upsert calls": {
"main": [
[
{
"node": "Supabase insert meter_event",
"type": "main",
"index": 0
}
]
]
},
"Supabase insert meter_event": {
"main": [
[
{
"node": "Supabase upsert lead",
"type": "main",
"index": 0
}
]
]
},
"Supabase upsert lead": {
"main": [
[
{
"node": "IF hot lead",
"type": "main",
"index": 0
}
]
]
},
"IF hot lead": {
"main": [
[
{
"node": "HTTP twilio.whatsapp.hotLead",
"type": "main",
"index": 0
}
],
[
{
"node": "Set skip",
"type": "main",
"index": 0
}
]
]
}
},
"active": false,
"settings": {
"executionOrder": "v1",
"saveExecutionProgress": true,
"saveManualExecutions": true,
"callerPolicy": "workflowsFromSameOwner",
"timezone": "Asia/Kolkata"
},
"versionId": "03000000-0000-4000-a000-000000000003",
"id": "voxa-w3-post-call",
"tags": [
{
"id": "tag-voxa",
"name": "voxa"
},
{
"id": "tag-post-call",
"name": "post-call"
}
],
"meta": {
"templateCredsSetupCompleted": false,
"description": "Voxa Workflow 3 \u2014 fires when ElevenLabs sends a post_call_transcription webhook. Responds 200 immediately, then in parallel: computes minutes, fires Stripe meter event (value as STRING of whole int, identifier=conversation_id_meter for idempotency), asks Claude Opus 4.7 to extract structured lead data, upserts calls + meter_events + leads, and WhatsApps the owner if lead_score>=7 OR sentiment='angry'."
}
}
Credentials you'll need
Each integration node will prompt for credentials when you import. We strip credential IDs before publishing — you'll add your own.
httpBasicAuthsupabaseApi
Pro
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About this workflow
Voxa W3 — Post-Call Processing. Uses supabase, httpRequest. Webhook trigger; 15 nodes.
Source: https://github.com/Sushant6095/voxa-stipeXelevenlabs/blob/39a43bd46d82f880dc779c1af83d4c159e7945ca/n8n/03-post-call.json — original creator credit. Request a take-down →
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