Skip to main content

Documentation Index

Fetch the complete documentation index at: https://gofastmcp.com/llms.txt

Use this file to discover all available pages before exploring further.

​
fastmcp.server.transforms.search

Search transforms for tool discovery. Search transforms collapse a large tool catalog into a search interface, letting LLMs discover tools on demand instead of seeing the full list. Example: 
from fastmcp import FastMCP
from fastmcp.server.transforms.search import RegexSearchTransform

mcp = FastMCP("Server")
mcp.add_transform(RegexSearchTransform())
# list_tools now returns only search_tools + call_tool