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Rename FastMCP to MCPServer (#1951)

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Marcelo Trylesinski 2026-01-25 14:45:52 +01:00 • committed by GitHub
commit 65c614e48e
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1 changed files with 713 additions and 693 deletions
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14
src/mcp/client/client.py
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@ -8,7 +8,7 @@ from typing import Any
from mcp.client._memory import InMemoryTransport
from mcp.client.session import ClientSession, ElicitationFnT, ListRootsFnT, LoggingFnT, MessageHandlerFnT, SamplingFnT
from mcp.server import Server
from mcp.server.fastmcp import FastMCP
from mcp.server.mcpserver import MCPServer
from mcp.shared.session import ProgressFnT
from mcp.types import (
CallToolResult,
@ -34,14 +34,14 @@ class Client:
"""A high-level MCP client for connecting to MCP servers.
Currently supports in-memory transport for testing. Pass a Server or
FastMCP instance directly to the constructor.
MCPServer instance directly to the constructor.
Example:
```python
from mcp.client import Client
from mcp.server.fastmcp import FastMCP
from mcp.server.mcpserver import MCPServer
server = FastMCP("test")
server = MCPServer("test")
@server.tool()
def add(a: int, b: int) -> int:
@ -55,7 +55,7 @@ class Client:
```
"""
# TODO(felixweinberger): Expand to support all transport types (like FastMCP 2):
# TODO(felixweinberger): Expand to support all transport types:
# - Add ClientTransport base class with connect_session() method
# - Add StreamableHttpTransport, SSETransport, StdioTransport
# - Add infer_transport() to auto-detect transport from input type
@ -64,7 +64,7 @@ class Client:
def __init__(
self,
server: Server[Any] | FastMCP,
server: Server[Any] | MCPServer,
*,
# TODO(Marcelo): When do `raise_exceptions=True` actually raises?
raise_exceptions: bool = False,
@ -79,7 +79,7 @@ class Client:
"""Initialize the client with a server.
Args:
server: The MCP server to connect to (Server or FastMCP instance)
server: The MCP server to connect to (Server or MCPServer instance)
raise_exceptions: Whether to raise exceptions from the server
read_timeout_seconds: Timeout for read operations
sampling_callback: Callback for handling sampling requests