Most endpoints return some files besides the logo. For each file, three questions matter. What is the file, for example a social banner, a photo, or a font? Can you use it? Does the link still work next week?
| Endpoint | Key | What it returned for linear.app |
|---|---|---|
| Brandfetch Brand API | images[], banner, screenshot |
A 1500 × 500 banner, a screenshot captured on 25 September 2026, and content delivery network (CDN) links for the logo, symbol and icon |
| Context.dev Brand | brand.backdrops[] |
Five images from 1000 × 166 to 1000 × 525, each with its colors |
| Context.dev Styleguide | styleguide.fontLinks |
Font files: Inter Variable and Berkeley Mono on the Context.dev CDN, and five fallback fonts from Google Fonts |
| Firecrawl branding | images |
The logo inline, the favicon and the Open Graph image, as found on the page |
| Logo.dev Brand API | data.social_banners[] |
One 1200 × 630 banner, on a signed link that expired the next day |
| Rainbrand Brief | assets[] |
Four assets for the task: the Inter Variable font, an image of the font, a monochrome Linear icon, and a screenshot of the Linear Agent tasks interface as a "reference only" |
| Rainbrand Brand Skill | files[] |
23 files: guidance in Markdown, two fonts with specimens, nine images, a favicon |
get_brief over MCPRainbrand Brief{"assets": [{"kind": "image","media_type": "image/png","url": "https://www.rainbrand.com/assets/AgHtorAyAmhJArYQReeuk…","inline": { "status": "included" }1Not defined in Rainbrand's docs. The REST spec has no such field.}, …]}How long each link works
| Endpoint | Link | How long it works |
|---|---|---|
| Logo.dev | img.logo.dev/assets/… |
Signed, and expires_at was the next day. The Logo.dev docs tell you to store the file, not the link |
| Brandfetch | cdn.brandfetch.io/…?c=… |
Tied to your client ID. The Brandfetch terms set out when you can cache content |
| Context.dev | media.brand.dev/… |
Not stated in the Context.dev docs |
| Rainbrand Brand Skill | storage.rainbrand.com/…?token=… |
Signed, and the token in our response expired about a week later |
Before you use a file
- A font or a photo in a response does not give you the right to ship it. Berkeley Mono is a commercial font.
- Rainbrand's Brief labeled its one image as a style reference, not as something to publish. Observed responses do not say what an image is for.
- Download the files that you keep. Every signed link above stops working.
Last updated 12 November 2026