fastmcp.types
Reusable type annotations for FastMCP tool parameters.
These types can be used in tool function signatures to influence how
parameters are presented in UIs (e.g. fastmcp dev apps) and
serialized in JSON Schema.
Example::
from fastmcp import FastMCP
from fastmcp.types import Textarea
mcp = FastMCP(“demo”)
@mcp.tool()
def run_query(sql: Textarea) -> str:
…