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Overview

FlowiseAI is a visual workflow builder for AI agents with native MCP support.

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Prerequisites

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Setup

1

Get your MCP URL from the dashboard

  1. Go to Connectors in the left nav and open the connector you want to use
  2. Click Use Connector in the top right
  3. On the Use tab, click MCP Server under “Use with Agent Client”
  4. Select a linked account from the dropdown
  5. Choose HTTPS MCP as the client
  6. Copy the generated URL — it looks like: 
    https://api.stackone.com/mcp?token=<session_token>
The token encodes your account identity. No separate API key or account ID header is needed.
The token expires after one year. Regenerate it at any time using the refresh button in the MCP tile.
2

Add MCP Server to Flowise

Navigate to your Flowise instance and open the chatflow where you want to add StackOne tools.
  1. In the left sidebar, find “Custom MCP” in the “Tools” section
  2. Drag the Custom MCP component onto your canvas and connect it to your agent
  3. In the MCP Server Config, add:
{
  "url": "https://api.stackone.com/mcp?token=<session_token>"
}
Replace <session_token> with the token from the previous step.
3

Configure available tools

Once connected, Flowise discovers all available StackOne tools for the account. Use the tool filter to search by provider or action type and enable only what your workflow needs.

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Advanced: Manual API Key Setup

If you prefer to authenticate with your API key and account ID directly: 
{
  "url": "https://api.stackone.com/mcp",
  "headers": {
    "Authorization": "Basic <YOUR_BASE64_TOKEN>",
    "x-account-id": "<YOUR_ACCOUNT_ID>"
  }
}
To generate the base64 token: 
echo -n "<stackone_api_key>:" | base64
See Authentication & Security for details.

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Limitations

  • Transport: StackOne only supports HTTP transport (no STDIO or SSE)
  • Tool Discovery: Tools are determined by the enabled actions for the integration configuration associated with the linked account

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Next Steps

Dashboard Setup

Generate MCP configs from any connector

Authentication Guide

Configure authentication and security

FlowiseAI Docs

Official Flowise MCP documentation

Explore All Tools

See all available operations in the StackOne Playground