n8n AI Agent: Chat TikTok & Instagram Analytics with Postdom

Ask n8n AI about TikTok & Instagram performance—then get answers from your real Postdom numbers

This n8n AI Agent lets you chat simple questions like “Which TikTok did best this week?” or “Why did views drop on Instagram?” The agent responds using your actual Postdom analytics—no opening nine different dashboards.

What this workflow does

• Starts a chat in n8n using a Chat Trigger (or you can swap it for Slack or Telegram).
• Routes the question to the right Postdom data via an AI Agent with an OpenAI model and memory.
• Reads from seven Postdom read-only tools:
  • accounts
  • best posts
  • account performance
  • a post
  • the weekly digest
  • workspace status
  • your brand brief
• Answers accurately—without guessing: if a platform doesn’t report a metric, the agent explicitly says so instead of treating it as zero.

Use cases

• Weekly performance check: “What performed best on TikTok this week, and how did Instagram react?”
• Drop analysis: “Why did views drop on Instagram—was it a specific post?”
• Agency reporting: Share consistent insights using your team’s brand brief and weekly digest.

Technical details

• n8n nodes/tools used: n8nnodes-postdompostdom (Postdom tools), n8nnodes-langchainagent (AI Agent), n8nnodes-langchainchat trigger, n8nnodes-langchainlm chat open ai, and n8nnodes-langchainmemory buffer window.
• Integrations: Postdom (read-only analytics) + OpenAI chat model.
• Setup outline: create a Postdom Agent key under Accounts > Agent keys (read-only is enough), add a Postdom API credential in n8n, and configure an OpenAI credential.

Who it’s for

Marketers, founders, and agencies using n8n who want fast, accurate answers about short-form results—directly from Postdom.