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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 Steps

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Step 1: Prepare StackOne Configuration

First, prepare your StackOne connection details:
  1. Get your API key from the StackOne Dashboard
  2. Get your account ID from the Accounts section
  3. Encode your API key for Basic auth:
echo -n "<stackone_api_key>" | base64
Save this base64 token - you’ll need it for configuration.

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Step 2: Add MCP Server to Flowise

1

Open Flowise

Navigate to your Flowise instance (typically http://localhost:3000)
2

Create or Open a Chatflow

Create a new chatflow or open an existing one where you want to add StackOne tools
3

Add MCP Tool

  1. In the left sidebar, find “MCP Tools” or “Tools” section
  2. Drag the MCP Tool component onto your canvas
  3. Connect it to your agent or chat model
4

Configure MCP Server

In the MCP Tool configuration panel:Server Type: Select “HTTP” (StackOne uses HTTP transport)Server URL:
https://api.stackone.com/mcp
Headers: Click “Add Header” and configure:
{
  "Authorization": "Basic <YOUR_BASE64_TOKEN>",
  "x-account-id": "<YOUR_ACCOUNT_ID>",
  "Content-Type": "application/json",
  "Accept": "application/json,text/event-stream"
}
Protocol Version: 2025-06-18 (optional)
5

Test Connection

Click “Connect” or “Test” to verify the MCP server connectionYou should see available tools populate from your StackOne account

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Step 3: Configure Available Tools

Once connected, Flowise will discover all available StackOne tools for your account: Tool Filtering:
  • You can filter which tools to expose to your agent
  • Search for specific operations by provider or action type
  • Enable/disable tools as needed for your workflow
Example Tools Based on Your Integrations:
  • gong_crm_search_calls - Search CRM calls in Gong
  • salesforce_list_accounts - List accounts from Salesforce
  • slack_send_message - Send messages via Slack
  • Plus hundreds more based on your connected integrations
To see all available integrations and operations:

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Step 4: Build Your Workflow

Now you can use StackOne tools in your Flowise chatflow:
  1. Connect to Agent: Link the MCP Tool to your AI agent node
  2. Configure Agent Prompt: Tell your agent when to use StackOne tools
  3. Add Logic: Combine with other Flowise components (conditional logic, data transformation, etc.)
  4. Test: Try asking questions that require StackOne data
Example Agent Prompt: 
You are a business data assistant with access to multiple platforms.
Use the appropriate tools based on what the user asks for.
You have access to data from connected business systems and platforms.
Always provide clear, helpful responses based on the data from connected systems.

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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

Explore All Tools

See all available operations in the StackOne Playground

API Documentation

Learn about StackOne’s Platform API

FlowiseAI Docs

Official Flowise MCP documentation

Get Support

Contact StackOne support for assistance

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Additional Resources