Mintlify

Doc platformmintlify.com

Mintlify for Technical Writers

Mintlify is a documentation platform built specifically for developer-facing content. It combines a modern publishing infrastructure with AI-assisted writing tools — most notably Mintlify Writer, which generates docstrings and documentation comments directly from your code.

Mintlify Writer (the VS Code extension) and Mintlify Docs (the documentation platform) are separate products. Both are covered here.

What it is

Mintlify Docs is a documentation site platform that renders MDX files into a polished, searchable documentation site — similar to Docusaurus but hosted, with built-in search, analytics, and an AI chat widget. Configuration is a single mint.json file.

Mintlify Writer is a VS Code extension that reads a function signature and generates a complete documentation comment — JSDoc, Python docstrings, or TypeScript annotations — in one keyboard shortcut. It works offline and requires no API key.

Use cases for technical writers

1

Generate code docstrings

Place the cursor on any function and press the Mintlify Writer shortcut (Cmd+. on macOS). It reads the function name, parameters, and return type and generates a complete documentation comment. Works with JavaScript, TypeScript, Python, Java, Go, Rust, and more.

2

Auto-document API endpoints

Paste a REST endpoint handler into Mintlify Writer and generate documentation that covers the HTTP method, path parameters, query parameters, request body, response codes, and usage examples. Use the output as a baseline for your API reference.

3

Maintain documentation alongside code

Because Mintlify Writer sits inside VS Code, documentation can be updated in the same commit as the code change. This dramatically reduces the lag between code and docs — the leading cause of documentation rot.

4

Publish a developer documentation site

Mintlify Docs renders MDX files with built-in components for API endpoints, code tabs, callouts, and interactive examples. Connect your GitHub repo and Mintlify deploys automatically on every push.

5

Add AI-powered search and chat

Mintlify Docs includes an AI chat widget powered by your own documentation content. Users can ask natural-language questions and get answers with direct links to the relevant pages — reducing support load without any additional configuration.

Mintlify Docs — key configuration

All site-level settings live in mint.json at the repository root. This single file controls navigation, branding, analytics integrations, and the AI assistant.

"name"Site name displayed in the browser tab and header.

"logo"Paths to light and dark logo variants.

"navigation"Nested array of groups and pages that defines the sidebar structure.

"colors"Primary, light, and dark accent colour hex values.

"api"Base URL for API playground — enables live request testing inside the docs.

"analytics"Connect PostHog, Mixpanel, or other analytics providers.

Best practices

Use as a baselineAI-generated docstrings are starting points, not finished copy. Verify that parameter descriptions match actual runtime behaviour and add edge cases the model doesn't know about.

Edit before committingReview generated docstrings in the same PR as the code. Committing unreviewed auto-generated documentation is how inaccurate content accumulates.

Pair with a style guideSet consistent rules for docstring format across the codebase — single-line summary, then a blank line, then detail. Mintlify Writer respects the style of surrounding docstrings.

Leverage the API playgroundMintlify Docs' built-in API playground lets users run live requests from within the documentation. This dramatically reduces the need for Postman collections and reduces support questions.

AI is not replacing technical writers — it is redefining the role. Writers who learn to work with AI produce better documentation faster, with greater consistency and scalability. The question is no longer whether to use AI, but how to use it without sacrificing accuracy and craft.

Docstring generator — before & after

Input — undocumented function

function getUserById(userId) {
  return db.users.findOne({ id: userId });
}

Mintlify Writer generates

Output — with docstring

/**
 * Retrieves a user record by its unique identifier.
 *
 * @param {string} userId - The unique ID of the user to retrieve.
 * @returns {Promise<User|null>} The matching user object,
 *   or null if no user with that ID exists.
 * @throws {DatabaseError} If the database query fails.
 *
 * @example
 * const user = await getUserById('usr_4f2a9b');
 * console.log(user.email); // 'alice@example.com'
 */
function getUserById(userId) {
  return db.users.findOne({ id: userId });
}

VS Code shortcut

Place your cursor on the line above a function and press Cmd+. (macOS) or Ctrl+. (Windows/Linux) to trigger Mintlify Writer. The generated docstring appears above the function signature.