By Mehdi HassanHow should an API company website be designed?
An API company website should be designed as a path, not a brochure: land, understand the call, get a key, make a request, see a response, then decide to build. Each page exists to make one step of that path shorter. The number that captures it is time to first call.
Most API sites already have the pieces, a homepage, docs, a dashboard and pricing, but they're designed by different teams and feel like separate products. The gaps between them are where developers drop off. Our developer tools website design hub covers the wider principles; this guide is specific to APIs.
- Designify landing page, fixed, built in Next.js
- $6,000
- Designify website, up to 6 pages, fixed
- $8,000
- Per extra page, such as a use-case or integration page
- +$500
What is time to first call and why does it matter?
Time to first call is how long it takes a new developer to go from first visit to a successful API response. It matters because a developer who gets a real response early has seen the product work, and a developer who hits friction before that usually leaves without telling you why.
Friction hides in small places: a sign-up form asking for a company size, an email verification that lands in spam, a key buried three menus deep, a quickstart in a language the developer doesn't use, or an example that fails because a parameter changed. Map each step yourself with a fresh account, time it, and note every moment you had to think. That list is your redesign brief.
Land and understand
The homepage names the job and shows one request and its response.
Sign up
GitHub or Google sign-in, no credit card for test mode, no long form.
Get a key
A test key shown immediately after sign-up, with a copy button.
Run the quickstart
The same call as the hero, in the developer's language, with their key prefilled.
See the response
A real response, plus where to see it logged in the dashboard.
Go further
Next steps by use case, links to SDKs, and how to move to live mode.
What should an API landing page show?
An API landing page should show the job in one line, a request and response side by side, a specific CTA such as "Get an API key", and docs as the second action. Below that, show use cases, SDK languages, reliability and pricing at a glance.
- Request and response. Short, real, copyable. Tabs for the main languages and a curl version.
- What the response means. A visual of the output when it's visual: a sent message, a verified identity, a rendered document.
- SDKs and frameworks. The languages you officially support, with links to each package.
- Reliability. Link to your status page and describe rate limits and versioning honestly.
- Use cases. Two to four jobs, each with its own short example.
How should the marketing site and docs join up?
The marketing site and docs should join up through shared navigation, shared search, a shared design system and consistent examples. A developer should never feel they've left one company's site for another's when they click "Docs".
Join point | What to do | What breaks it |
|---|---|---|
Navigation | Same header across site and docs, with Docs, Pricing, Sign in | A docs portal with its own unrelated header |
Search | One search across guides, reference and marketing pages | Separate search boxes with different results |
Examples | Hero snippet equals quickstart step one | Different examples on each surface |
Design | Shared type, color, code block style | Docs on a default theme that looks unfinished |
Auth state | Signed-in users see their key in docs | Developers copying placeholder keys |
Technically, the simplest way to join them is one codebase or one design system across both. If the marketing site runs on Next.js, the docs can live in the same app as MDX pages, or on a docs framework that shares your components. Our guide to developer documentation site design covers the docs side in depth, and developer portal and console UI design covers the dashboard where keys live.
For example, suppose an address-verification API redesigns its path
Hypothetical example: an API for verifying business addresses finds that new developers sign up, then stall. Walking the path shows the key appears only after email verification, the quickstart uses Python while most sign-ups choose JavaScript, and the hero example uses a different endpoint than the quickstart.
The redesign shows the test key on the first screen after sign-up, opens the quickstart in the language chosen at sign-up, prefills the key and makes the hero call identical to step one of the docs. No new features, just a shorter path.
How should an API product page explain pricing?
An API product page should explain pricing in the units developers think in: price per call or per unit, what's free, what happens at the limit and how rate limits work. Put the details on a pricing page linked from both the marketing site and the docs.
Show the free or test tier first, then paid usage, then volume or enterprise terms. If price varies by endpoint, use a table. If usage is hard to predict, add a simple calculator. Say what happens on overage: blocked requests, throttling or billing. Our guide to devtools pricing pages shows how others lay this out by model.
Which pages does an API marketing website need?
An API marketing website needs a homepage, docs with a quickstart and reference, pricing, a status page and a changelog at launch. Use-case pages, SDK pages, integration guides and customer stories come next.
Use-case pages pull their weight in search, because developers search for the job ("send SMS from Node"), not your brand. Each one should carry a working example and link into the relevant guide. A changelog with versioning notes builds trust that you won't break integrations without warning. For complex products with several APIs, our guide to website design for complex products explains how to organise them, and our developer tool landing page examples show how leading API companies present the request-response pattern.
How do you measure whether an API website works?
Measure an API website by the share of new sign-ups who make a successful call, and how long that takes. Page views and time on page tell you little; the funnel from visit to first response tells you where the path breaks.
- Visit to sign-up: is the homepage and CTA clear?
- Sign-up to key copied: is the key easy to find?
- Key to first successful call: does the quickstart work in the developer's language?
- First call to second day: do they come back to build, or was it a one-off test?
