Obsidian MCP Server

Description: Adds or updates properties within the frontmatter section at the top of a specified Obsidian markdown file. This tool is primarily used to apply metadata generated by the generate_obsidian_properties tool to an actual file.

Parameters:

• filePath (string, required): The path to the target markdown file to which properties will be added or updated. Example: "my-first-post.md"

• properties (object, required): A JSON object containing the key-value pairs to be written to the file's frontmatter. If a property with the same key already exists in the file, it will be overwritten with the new value.

Example:

JSON { "title": "Optimizing I/O Handling in a Serverless Environment", "date": "2025-04-03", "tags": ["serverless", "optimization"], "summary": "A case study on optimizing I/O in a serverless environment by benchmarking Promise.all and Workers.", "completed": true }

Return Value:

Upon successful execution, it returns a JSON object containing the status, a confirmation message, and the property object that was applied to the file.

Example:

JSON { "status": "success", "message": "Successfully updated properties for my-first-post.md", "properties": { "title": "Optimizing I/O Handling in a Serverless Environment", "date": "2025-04-03", "tags": ["serverless", "optimization"], "summary": "A case study on optimizing I/O in a serverless environment by benchmarking Promise.all and Workers.", "completed": true } }

Dependencies & Requirements:

• Input Data: The properties parameter should typically be the JSON object output from the generate_obsidian_properties tool.

• Environment Setup: The absolute path to the user's Obsidian Vault must be correctly set as an environment variable.