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fastmcp.utilities.inspectUtilities for inspecting FastMCP instances.
Functions inspect_fastmcp_v2 inspect_fastmcp_v2 ( mcp : FastMCP [ Any ]) -> FastMCPInfo
Extract information from a FastMCP v2.x instance.
Args:
mcp: The FastMCP v2.x instance to inspect
Returns:
FastMCPInfo dataclass containing the extracted information
inspect_fastmcp_v1 inspect_fastmcp_v1 ( mcp : FastMCP1x ) -> FastMCPInfo
Extract information from a FastMCP v1.x instance using a Client.
Args:
mcp: The FastMCP v1.x instance to inspect
Returns:
FastMCPInfo dataclass containing the extracted information
inspect_fastmcp inspect_fastmcp ( mcp : FastMCP [ Any ] | FastMCP1x ) -> FastMCPInfo
Extract information from a FastMCP instance into a dataclass.
This function automatically detects whether the instance is FastMCP v1.x or v2.x
and uses the appropriate extraction method.
Args:
mcp: The FastMCP instance to inspect (v1.x or v2.x)
Returns:
FastMCPInfo dataclass containing the extracted information
format_fastmcp_info ( info : FastMCPInfo ) -> bytes
Format FastMCPInfo as FastMCP-specific JSON.
This includes FastMCP-specific fields like tags, enabled, annotations, etc.
format_mcp_info ( mcp : FastMCP [ Any ] | FastMCP1x ) -> bytes
Format server info as standard MCP protocol JSON.
Uses Client to get the standard MCP protocol format with camelCase fields.
Includes version metadata at the top level.
format_info ( mcp : FastMCP [ Any ] | FastMCP1x , format : InspectFormat | Literal [ ' fastmcp ' , ' mcp ' ], info : FastMCPInfo | None = None ) -> bytes
Format server information according to the specified format.
Args:
mcp: The FastMCP instanceformat: Output format (“fastmcp” or “mcp”)info: Pre-extracted FastMCPInfo (optional, will be extracted if not provided)
Returns:
JSON bytes in the requested format
Classes Information about a tool.
PromptInfo Information about a prompt.
ResourceInfo Information about a resource.
TemplateInfo Information about a resource template.
FastMCPInfo Information extracted from a FastMCP instance.
Output format for inspect command. 
