Call analyzer with AssemblyAI transcription and OpenAI assistant integration

n8n template #2547

Summary

Video Guide I prepared a detailed guide that showed the whole process of building a call analyzer. .png) Who is this for? This workflow is ideal for sales teams, customer support managers, and online education services that conduct follow-up calls with clients. It’s designed for those who want to leverage AI to gain deeper insights into client needs and upsell opportunities from recorded calls. What problem does this workflow solve? Many follow-up sales calls lack structured analysis, making it challenging to identify client needs, gauge interest levels, or uncover upsell opportunities. This workflow enables automated call transcription and AI-driven analysis to generate actionable insights,

How to set it up

Open template #2547 on n8n.io and click Use for free, or copy the template JSON and paste it onto an empty canvas in n8n.
Create a credential under Credentials → Add credential: Supabase. Then open each of those nodes and pick the credential.
Click Execute workflow and step through each node's output to confirm the data looks right.
Toggle the workflow to Active so its trigger runs on its own.

Hand off to your agent

Prompt

Help me set up the n8n workflow "Call analyzer with AssemblyAI transcription and OpenAI assistant integration" (https://n8n.io/workflows/2547). It uses: HTTP Request, Supabase. Import the template JSON into my n8n instance, list every credential I need to create, and walk me through testing it.

Paste into Claude Code and it will do the rest.

Apps and nodes

HTTP Request Supabase

Questions

Yes. Mark Shcherbakov published it free on n8n.io as a verified creator, and it has 6,571 views. It runs on n8n Cloud or a self-hosted n8n instance.

Supabase. The other 1 node are built into n8n.

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