Tool Input Data Types

[zthafir]

I’m working on a case where I want to use an MCP server (specifically a custom MCP server). This server contains a group of tools, and each tool may accept different input arguments with different data types.

The issue I’m facing is that whenever I try to use a tool, Flowise always converts the input arguments into strings, which then causes errors.

For example, when using the Firecrawl MCP server and selecting the FIRECRAWL_CRAWL tool , I get the following error:

[{"type":"text","text":"Error: Request failed with status code 400. 
Error: Bad Request - [
  {"code":"invalid_type","expected":"number","received":"string","path":["maxDepth"],"message":"Expected number, received string"},
  {"code":"invalid_type","expected":"number","received":"string","path":["limit"],"message":"Expected number, received string"},
  {"code":"invalid_type","expected":"boolean","received":"string","path":["ignoreQueryParameters"],"message":"Expected boolean, received string"}
]"}]

Here are the screenshots of the Flow setup that produces this issue:

So my question is:
Is there a way to prevent Flowise from converting all arguments to strings, or to handle this type casting properly so the tools receive the correct types (number, boolean, etc.)?