Merge Agent Handler MCP
AI-generatedSummary
Call a specific MCP tool within a selected Tool Pack and Registered User context in the Merge Agent Handler platform, passing JSON arguments and receiving the tool's output, including handling authentication flows via magic links if needed.
Inputs
- Tool Pack Name or ID (required) — Select the Tool Pack by name or ID that contains the MCP tools you want to use.
- Environment — Choose between production or test environments to select the appropriate registered users.
- Registered User Name or ID (required) — Select the registered user by name or ID whose context the tool will run under, filtered by the chosen environment.
- Tool Name or ID (required) — Choose the MCP tool to call from the list of available tools for the selected Tool Pack and Registered User.
- Arguments (JSON) — Provide a JSON object of arguments to pass as input to the selected MCP tool.
Output shape
a list of JSON objects, each containing the tool call result in the 'result' field, and optionally 'magic_link_url' and 'requires_auth' flags if authentication is required
If the tool call requires authentication, the node output includes a magic link URL to complete authorization. If the tool name is given as a natural language description, the node attempts to resolve matching tools or returns a list of matches for user selection. Errors in calling the tool or invalid JSON arguments result in error messages in the output or node failure depending on workflow error handling settings.
Examples
Example 1: Call a tool to fetch data
Tool Pack and Registered User selected, tool name chosen from dropdown, with JSON arguments relevant to the tool, to receive the call output in the node result.