# thumb.im

> thumb.im turns HTML into images and URLs into screenshots, and returns permanent URLs for og:image and twitter:image tags. No headless browser needed. Authenticate with an API key in the X-API-Key header.

Coding agents: read the skill first. It covers choosing between a rendered card and a screenshot, the request shapes, limits, domain verification, and error handling.

## Agent skill

- [SKILL.md](https://thumb.im/skill.md): How to create and manage a site's OG images through the API: render a card from HTML with POST /apis/render/ (no domain verification), screenshot a page, verify a domain, handle 400/401/403/429

## Docs

- [API docs](https://thumb.im/public/docs/): Hotlink URLs, path options, response behavior, JSON API endpoints
- [Interactive API schema](https://thumb.im/apis/docs): OpenAPI reference for every endpoint
- [Generator](https://thumb.im/generate/): Build a screenshot URL or try an HTML render in the browser

## Credentials

- [API keys](https://thumb.im/api-keys/): Create a key (Dashboard, API Keys). Keep it in an environment variable, never in committed code