Rainbrand vs Brandfetch: look up a brand or maintain one?
Brandfetch looks up how any company presents itself in public, from its domain. Rainbrand maintains the guidance and assets of brands you work on repeatedly, for the agents and products making that work. How they differ, when a lookup is enough and when to use both.
TL;DR
Choose Rainbrand for the brands your agents or product make work for again and again: it keeps their guidance, files and decisions current, selects what each task needs and checks the result against the brand. Choose Brandfetch to look up any company's public brand data from its domain, including logos, colours and a summary of voice and positioning. Many products use both: a lookup when a company first appears, then a maintained brand for the work that follows.
Similar words, different data
Brandfetch's developer site describes Brandfetch as “the brand layer for products and AI agents”. We describe Rainbrand as the brand layer for agents. So compare them by whose brand each one covers and who keeps that brand right.
Brandfetch's Brand API returns any company's public identity from a domain, email address or stock ticker: logos, colours, fonts, images and company details. Its Brand Context API adds a tagline, mission, audiences, products, competitors and a summary of voice and visual style, as JSON or as Markdown ready to put in a prompt. It resolves brands it hasn't indexed yet, and nobody at the company has to sign up. For a CRM record, a partner slide or the first screen of onboarding, that public record is often exactly what you need.
Rainbrand covers brands you or your customers work on repeatedly. A team, agency or product adds a brand from its own sources, such as a brand guide, logo and font files, images and the website, and Rainbrand builds and maintains that brand's context. Agents request a Brief for each task and request a Review of the finished work. When the brand changes, Rainbrand prepares an edit from the change you describe, and you inspect it and apply it.
Brandfetch's side of this comparison comes from its documentation, checked on October 28, 2026. We haven't compared live Brandfetch and Rainbrand responses for the same company.
What a public profile can't carry
The difference shows up in campaign work. Eager makes juice and sells it in solid-colour cartons; its brand was added to Rainbrand from its website, eagerdrinks.com, the same public starting point a lookup uses. For a demonstration, we then asked Claude to make a launch campaign for a flavour Eager doesn't sell. Claude settled on blackcurrant, then asked Rainbrand for a Brief, its selection of guidance and files for the task, before designing anything.
The saved Brief separates what came from Eager's sources from what came from the task:
| In the Brief | Came from | What it told the agent |
|---|---|---|
| The existing seven-carton range | Eager's sources | Keep those products as they are |
| P22 Mackinac Pro at weight 500, with files | Eager's sources | Set type with the actual font files |
| A blackcurrant flavour in a purple carton | The task | Treat it as concept work |
| Storage and sugar wording for the new carton | Eager's guidance, narrowed for this task | Make no other product claims |
The claims section shows the kind of rule a public profile doesn't hold. It told the agent:
Do not add health, ingredient/formula, price, availability, endorsement, sustainability or other product claims. Do not import general site delivery copy into this concept, and do not generalize “100% juice” or “never from concentrate” across Eager’s range.
Some of those lines narrow what the brand's own materials say, for one piece of work. A public profile describes the whole company to everyone who looks it up. It has no place for “for this concept, don't repeat the site's delivery copy”, and a website lookup can't learn that a purple carton is a hypothetical idea rather than a new product. Rules like these come from the brand's own guidance and from the job in hand. They aren't public facts about the company, and they have to reach the agent with the task.
The full Brief, campaign and checks are on the example page.
When a company claims its profile
Brandfetch's data isn't just a crawl. Its developer site says brands “submit and edit their own profiles directly”, that everything else is extracted from the brand's website and official channels and reviewed by a person, and that claimed brands update as soon as their owner pushes a change. A company can claim its profile by verifying a work email.
If you run a brand, claiming it is worth doing: it improves the record other products retrieve. It's still one public profile per company, written for anyone who looks it up. The guidance your own agents need, such as unreleased products, the claims a campaign may make and the rules for each logo version, isn't something you'd publish there.
Using both in assistants and products
Both run MCP servers that AI assistants can call. Brandfetch MCP lets an assistant search for brands and retrieve logos, colours, fonts, company information and brand context. Rainbrand's MCP connection works on the brands you maintain, supplying Briefs and Reviews during the work. A co-marketing page can use both: your campaign guidance from Rainbrand and a partner's logo from Brandfetch.
In a product, use each at its own stage. Brandfetch documents prefilling a new account with a company's logo and colours, looked up from the domain of a work email. When that customer starts repeated brand work, add their brand to Rainbrand from their own guide and files, and let them correct anything the lookup got wrong. Managing customers' brands in an AI product covers creating each customer's brand and checking access before every request.
Brandfetch also offers webhooks on paid plans, which notify your application when a subscribed brand's logo or company details change. Rainbrand's API covers the lifecycle of the brands you maintain: adding them, requesting Briefs and Reviews, and applying edits.
Which to buy
| Repeated need | Purchase |
|---|---|
| Logos and public facts for many companies | Brandfetch |
| Guidance, files and checks for brands you work on often | Rainbrand |
| A quick start at signup, then ongoing work | Brandfetch at signup, Rainbrand after |
They price different units. Brandfetch meters its API in brand fetches, one per call. Rainbrand's plans are monthly credits spent on Briefs, Reviews, new brands and edits. Adding a brand to Rainbrand takes some analysis time and uses credits, so enriching thousands of CRM rows is lookup work.
If you're choosing Rainbrand, start from the guide and files that actually define the brand, including the decisions a website wouldn't show. Add that brand, then request a Brief for the next deliverable your agents will make and check what it selected.
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