{ "$defs": { "Deployment": { "description": "Configuration for server deployment and runtime settings.", "properties": { "transport": { "anyOf": [ { "enum": [ "stdio", "http", "sse", "streamable-http" ], "type": "string" }, { "type": "null" } ], "default": null, "description": "Transport protocol to use", "title": "Transport" }, "host": { "anyOf": [ { "type": "string" }, { "type": "null" } ], "default": null, "description": "Host to bind to when using HTTP transport", "examples": [ "127.0.0.1", "0.0.0.0", "localhost" ], "title": "Host" }, "port": { "anyOf": [ { "type": "integer" }, { "type": "null" } ], "default": null, "description": "Port to bind to when using HTTP transport", "examples": [ 8000, 3000, 5000 ], "title": "Port" }, "path": { "anyOf": [ { "type": "string" }, { "type": "null" } ], "default": null, "description": "URL path for the server endpoint", "examples": [ "/mcp/", "/api/mcp/", "/sse/" ], "title": "Path" }, "log_level": { "anyOf": [ { "enum": [ "DEBUG", "INFO", "WARNING", "ERROR", "CRITICAL" ], "type": "string" }, { "type": "null" } ], "default": null, "description": "Log level for the server", "title": "Log Level" }, "cwd": { "anyOf": [ { "type": "string" }, { "type": "null" } ], "default": null, "description": "Working directory for the server process", "examples": [ ".", "./src", "/app" ], "title": "Cwd" }, "env": { "anyOf": [ { "additionalProperties": { "type": "string" }, "type": "object" }, { "type": "null" } ], "default": null, "description": "Environment variables to set when running the server", "examples": [ { "API_KEY": "secret", "DEBUG": "true" } ], "title": "Env" }, "args": { "anyOf": [ { "items": { "type": "string" }, "type": "array" }, { "type": "null" } ], "default": null, "description": "Arguments to pass to the server (after --)", "examples": [ [ "--config", "config.json", "--debug" ] ], "title": "Args" } }, "title": "Deployment", "type": "object" }, "FileSystemSource": { "description": "Source for local Python files.", "properties": { "type": { "const": "filesystem", "default": "filesystem", "title": "Type", "type": "string" }, "path": { "description": "Path to Python file containing the server", "title": "Path", "type": "string" }, "entrypoint": { "anyOf": [ { "type": "string" }, { "type": "null" } ], "default": null, "description": "Name of server instance or factory function (a no-arg function that returns a FastMCP server)", "title": "Entrypoint" } }, "required": [ "path" ], "title": "FileSystemSource", "type": "object" }, "UVEnvironment": { "description": "Configuration for Python environment setup.", "properties": { "type": { "const": "uv", "default": "uv", "title": "Type", "type": "string" }, "python": { "anyOf": [ { "type": "string" }, { "type": "null" } ], "default": null, "description": "Python version constraint", "examples": [ "3.10", "3.11", "3.12" ], "title": "Python" }, "dependencies": { "anyOf": [ { "items": { "type": "string" }, "type": "array" }, { "type": "null" } ], "default": null, "description": "Python packages to install with PEP 508 specifiers", "examples": [ [ "fastmcp>=2.0,<3", "httpx", "pandas>=2.0" ] ], "title": "Dependencies" }, "requirements": { "anyOf": [ { "format": "path", "type": "string" }, { "type": "null" } ], "default": null, "description": "Path to requirements.txt file", "examples": [ "requirements.txt", "../requirements/prod.txt" ], "title": "Requirements" }, "project": { "anyOf": [ { "format": "path", "type": "string" }, { "type": "null" } ], "default": null, "description": "Path to project directory containing pyproject.toml", "examples": [ ".", "../my-project" ], "title": "Project" }, "editable": { "anyOf": [ { "items": { "format": "path", "type": "string" }, "type": "array" }, { "type": "null" } ], "default": null, "description": "Directories to install in editable mode", "examples": [ [ ".", "../my-package" ], [ "/path/to/package" ] ], "title": "Editable" } }, "title": "UVEnvironment", "type": "object" } }, "description": "Configuration file for FastMCP servers", "properties": { "$schema": { "anyOf": [ { "type": "string" }, { "type": "null" } ], "default": "https://gofastmcp.com/public/schemas/fastmcp.json/v1.json", "description": "JSON schema for IDE support and validation", "title": "$Schema" }, "source": { "$ref": "#/$defs/FileSystemSource", "description": "Source configuration for the server", "examples": [ { "path": "server.py" }, { "entrypoint": "app", "path": "server.py" }, { "entrypoint": "mcp", "path": "src/server.py", "type": "filesystem" } ] }, "environment": { "$ref": "#/$defs/UVEnvironment", "description": "Python environment setup configuration" }, "deployment": { "$ref": "#/$defs/Deployment", "description": "Server deployment and runtime settings" } }, "required": [ "source" ], "title": "FastMCP Configuration", "type": "object", "$id": "https://gofastmcp.com/public/schemas/fastmcp.json/v1.json" }