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Use PostFlow in n8n AI agents through the MCP Client Tool, or in fixed workflows through the API.

AI Agent node

Section titled “AI Agent node”
  1. Add an AI Agent node and, under Tool, an MCP Client Tool.
  2. Endpoint: https://postflow.biz.id/api/mcp. Server Transport: HTTP Streamable.
  3. Authentication: Bearer Auth, with a PostFlow API key as the token. Use a Read only key for agents that only report.
  4. Tools to include: all, or pick the ones the agent needs (for example list_comments and reply_to_comment).

Fixed workflows

Section titled “Fixed workflows”

For steps that always run the same way (a new row in a sheet becomes a post), call the REST API with the HTTP Request node instead. See n8n, Make and Zapier.

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