# ThumbAPI > AI-powered thumbnail generation API. Send a title and a format, get back a production-ready thumbnail for YouTube, Instagram, X, LinkedIn, blog posts, or OG images — in a single REST API call. ThumbAPI is built for developers and content automation pipelines. It turns one POST request into a finished, platform-optimized thumbnail with no template design, no SDK lock-in, and no manual editing. Integrates natively with n8n, Make.com, Zapier, WordPress, and MCP-compatible AI clients — Claude Desktop, ChatGPT Desktop, Cursor, Windsurf, and Claude Code — via the `@thumbapi/mcp-server` package. Custom asset datasets (faces, logos, brand references) keep generated thumbnails visually consistent across content. ## Documentation - [Quickstart](https://thumbapi.dev/docs/quickstart): Sign up, get an API key, send your first generate request in under five minutes. - [Authentication](https://thumbapi.dev/docs/authentication): Header-based `x-api-key` authentication, key rotation, and security best practices. - [POST /v1/generate](https://thumbapi.dev/docs/endpoints/generate): Full reference for the core generate endpoint — every parameter, every response field. - [Custom Assets](https://thumbapi.dev/docs/custom-assets): Upload reference images, logos, or face photos once and reuse them across requests for brand consistency. - [Errors](https://thumbapi.dev/docs/errors): HTTP status codes, error payload shape, and what each error means. - [Rate Limits](https://thumbapi.dev/docs/rate-limits): Per-plan request quotas and 429 handling. - [Webhooks](https://thumbapi.dev/docs/webhooks): Subscription and account event webhooks. - [SDKs](https://thumbapi.dev/docs/sdks): Recommended HTTP client patterns in JavaScript, Python, and Go. - [Examples](https://thumbapi.dev/docs/examples): End-to-end code samples for common languages and frameworks. - [Changelog](https://thumbapi.dev/changelog): Public release notes for the API and dashboard. ## Use Cases - [YouTube Thumbnail API](https://thumbapi.dev/youtube-thumbnail-api): Generate 1280×720 YouTube thumbnails from a title. - [OG Image API](https://thumbapi.dev/og-image-api): Generate 1200×630 Open Graph images for social previews. - [Blog Cover API](https://thumbapi.dev/blog-cover-api): Generate blog post header images automatically per post. - [Personalized Thumbnails](https://thumbapi.dev/use-cases/personalized-thumbnails): Auto-include a creator's face on every generated thumbnail. - [Branded Thumbnails](https://thumbapi.dev/use-cases/branded-thumbnails): Consistent logo and brand styling across generated assets. - [Instagram Post Images](https://thumbapi.dev/use-cases/instagram-post-images): 1080×1080 square images for IG feed posts. - [Faceless Thumbnails](https://thumbapi.dev/features/faceless-thumbnails): Text-and-graphic designs for faceless YouTube channels. ## Integrations - [MCP Server](https://www.npmjs.com/package/@thumbapi/mcp-server): Official Model Context Protocol server (`@thumbapi/mcp-server`) — install once with `npx -y @thumbapi/mcp-server` and generate thumbnails directly from Claude Desktop, ChatGPT Desktop, Cursor, Windsurf, or Claude Code via the exposed `generate_thumbnail` tool. Stdio transport, no remote server, no OAuth. Ideal for AI-agent workflows and in-chat thumbnail generation. - [WordPress Plugin](https://thumbapi.dev/integrations/wordpress): Official WordPress plugin that adds a "Generate featured image" panel to the post editor. Block + classic editor support, one-click featured image from the post title. - [n8n Integration](https://thumbapi.dev/integrations/n8n): Official `n8n-nodes-thumbapi` community node with credential management — drop the node on a canvas, pass a title, get binary thumbnail data back. - [Make.com Integration](https://thumbapi.dev/integrations/make): Scenario setup using the HTTP module. - [Zapier Integration](https://thumbapi.dev/integrations/zapier): Webhooks-by-Zapier setup for no-code thumbnail automation. ## Comparisons - [vs Canva](https://thumbapi.dev/vs/canva): Manual design tool vs automated thumbnail API. - [vs Bannerbear](https://thumbapi.dev/vs/bannerbear): Template-based image/video API vs AI-generated thumbnails. - [vs Orshot](https://thumbapi.dev/vs/orshot): Template library plus AI models vs purpose-built AI thumbnails. - [Templated.io Alternative](https://thumbapi.dev/alternatives/templated): AI thumbnail API with no templates — direct alternative to Templated.io's drag-and-drop template engine. - [vs AI Generative Models](https://thumbapi.dev/vs/ai-generative-models): Dataset-grounded thumbnail generation vs general-purpose image models. ## Blog - [How to Auto-Generate YouTube Thumbnails with n8n](https://thumbapi.dev/blog/auto-generate-youtube-thumbnails-n8n): Step-by-step n8n workflow that turns new YouTube uploads into ThumbAPI-generated thumbnails saved to Google Drive. - [n8n Thumbnail Automation Workflow](https://thumbapi.dev/blog/n8n-thumbnail-automation-workflow): Compact step-by-step guide to wiring an n8n workflow against the ThumbAPI generate endpoint. - [Custom Asset Datasets for Brand Consistency](https://thumbapi.dev/blog/custom-asset-datasets-brand-consistency): Using uploaded reference assets to keep generated thumbnails consistent across a series. - [Generate Thumbnails in JavaScript / Node.js](https://thumbapi.dev/blog/generate-thumbnails-javascript-nodejs): Production patterns for calling ThumbAPI from a Node.js backend. - [Batch Thumbnail Generation in Python](https://thumbapi.dev/blog/batch-thumbnail-generation-python): Generate thumbnails in bulk from a Python script with retry and concurrency handling. - [Faceless YouTube Thumbnail Automation](https://thumbapi.dev/blog/faceless-youtube-thumbnail-automation): Why faceless channels are the natural fit for thumbnail automation, plus a single-request workflow. - [Thumbnails With Faces](https://thumbapi.dev/blog/thumbnails-with-faces): Click-through data on face vs faceless thumbnails and how to use `with-image` style. - [Best Thumbnail Styles 2026](https://thumbapi.dev/blog/best-thumbnail-styles-2026): Current design patterns that consistently outperform across YouTube niches. - [Faceless YouTube Channels](https://thumbapi.dev/blog/faceless-youtube-channels): What makes a faceless channel work and where thumbnails fit in the pipeline. - [Increase YouTube CTR](https://thumbapi.dev/blog/increase-youtube-ctr): Practical levers to lift click-through rate, with thumbnail testing as the highest-leverage one. - [Automating Content Creation](https://thumbapi.dev/blog/automating-content-creation): Developer-focused guide to building an end-to-end content automation pipeline. ## Company - [About](https://thumbapi.dev/about): Who built ThumbAPI and why. - [Privacy Policy](https://thumbapi.dev/privacy-policy) - [Terms of Service](https://thumbapi.dev/terms-of-service) ## Optional - [Full Reference (llms-full.txt)](https://thumbapi.dev/llms-full.txt): Complete markdown content of all documentation, comparisons, and blog posts in one file. - [Dashboard](https://app.thumbapi.dev): Sign up, manage API keys, upload custom assets, and view usage. - [Status](https://stats.uptimerobot.com/M7wbNUA3WL): Public uptime monitoring.