Overview

Mintlify is a hosted docs platform popular with developer tool startups and API companies (Resend, Loops, Trigger.dev use it). The core value prop: write MDX in your GitHub repo, and Mintlify handles the rest — hosting, search, AI chat, and auto-generated API references from your OpenAPI spec.

Quick Start

npm install -g mintlify

# Initialize in your repo
mintlify init

# Preview locally
mintlify dev

docs.json Configuration

{
  "name": "My API",
  "logo": {
    "light": "/logo/light.svg",
    "dark": "/logo/dark.svg"
  },
  "favicon": "/favicon.ico",
  "colors": {
    "primary": "#6366F1"
  },
  "topbarLinks": [
    { "name": "Dashboard", "url": "https://app.myproduct.com" }
  ],
  "navigation": [
    {
      "group": "Get Started",
      "pages": ["introduction", "quickstart"]
    },
    {
      "group": "API Reference",
      "pages": ["api-reference/overview", "api-reference/authentication"]
    }
  ],
  "api": {
    "baseUrl": "https://api.myproduct.com",
    "auth": {
      "method": "bearer"
    }
  }
}

OpenAPI Integration

Mintlify auto-generates interactive API reference pages from your OpenAPI spec:

# docs.json — point to your OpenAPI file
{
  "openapi": "openapi.yaml"
}

Each endpoint gets its own page with:

Request/response schema
Interactive “Try it” panel
Code examples in 10+ languages
Authentication pre-filled from user’s API key

MDX Components

---
title: "Authentication"
description: "How to authenticate requests to the API"
---

<Note>
  All API requests require a valid API key in the `Authorization` header.
</Note>

<CodeGroup>
```bash curl
curl -H "Authorization: Bearer $API_KEY" \
  https://api.example.com/v1/users

import requests
resp = requests.get(
  "https://api.example.com/v1/users",
  headers={"Authorization": f"Bearer {API_KEY}"}
)

Generate an API key in the dashboard ```

GitHub Deployment

Mintlify deploys automatically from your GitHub repository:

# .github/workflows/mintlify-preview.yml (auto-created by Mintlify)
# PRs get preview deployments with unique URLs
# Merges to main auto-deploy to your docs URL

Every PR gets a preview URL — team members can review doc changes without local setup.

Use Cases

Developer tool and API startups: Mintlify is the default choice for developer-focused SaaS companies (Resend, Trigger.dev, Loops, and hundreds of others use it). The OpenAPI auto-generation means your API reference stays in sync with your spec file without manual work. The professional default theme signals credibility to developers evaluating your product — first impressions from the docs matter.
Teams that want docs-as-code without ops overhead: If you want to write docs in MDX and sync from GitHub but don’t want to maintain a Docusaurus deployment, CDN configuration, and Algolia search index yourself, Mintlify handles all of it. You get automatic deploys on push, PR preview URLs, and built-in search without owning any infrastructure.
Products where users ask the same questions repeatedly: Mintlify’s AI chat widget lets users ask natural-language questions and get answers sourced from your docs. This reduces support ticket volume for common integration questions. Teams that add Mintlify’s AI search report measurable drops in “how do I…” support requests within weeks of launch.
Multi-product documentation with consistent branding: Companies with several products or SDKs can give each product its own Mintlify deployment with a shared docs.json theme configuration. All products get consistent navigation, colors, and component styles without duplicating design work — just point each product’s repo at the shared theme values.
Replacing static README-only documentation: Open source maintainers and indie developers who currently document their tools in a GitHub README get dramatically better UX by migrating to Mintlify’s free tier. Features like code group tabs, callout cards, step-by-step guides, and versioned changelogs are impossible in plain Markdown but trivial with Mintlify’s MDX component library.

Mintlify

✅ Pros

⚠️ Cons