# Website Design for Open-Source Companies > Websites for open-source and API-first companies. What is free and what you pay for, docs one click away, and self-host and cloud options side by side. Source: https://pentaclay.com/industries/open-source-api-first # Website design for open-source and API-first companies Developers come for the code. The company pays for the cloud or enterprise plan. We build a site that makes the line between free and paid easy to see. [Book a call](https://cal.com/pentaclay/discovery-call) [**5.0** Hired 18 times on Contra](https://contra.com/pentaclay/reviews) [See all work](https://pentaclay.com/work) Companies that trusted us with their website ## Open-source and API-first websites, in short Updated 17 Oct 2026 An open-source or API-first website serves the developer who adopts it for free and the company that pays for more. It needs a clear line between what is free and what is paid, docs and an API reference one click away, self-host and cloud options side by side, and the security answers a company asks before it pays. In our study of YC homepages (10 Oct 2026), 41 of 107 open-source companies run their site on Next.js. Pentaclay is a B2B website design agency for AI companies. We write, design and build these sites in Framer, Webflow or Next.js. Can I see work like ours? Yes. See our recent B2B work. How long does a full website take? 6 weeks, from the first call to launch. When do I see the price? Scope, price and launch date in writing within 3 business days. Which platforms do you build in? Framer, Webflow, Next.js or another platform. ## What we hear on the first call And how we’d fix each one on your website. **Kazi Mohammed Erfan** Founder, Pentaclay 2. You Developers love the repo, but nobody can find what the paid plan adds. 3. We put free and paid side by side: what the open-source version does, what the cloud or enterprise plan adds, and what drives the price. 4. - Free versus paid, side by side - What drives the price - Security answers for paid plans 5. You Self-host or cloud? Our site makes people dig to compare them. 6. We compare both on one page, with who each one suits and what each one includes. 7. - Self-host and cloud, one page - Who each option suits - Status page link for cloud 8. You Our API reference is great, but the homepage doesn’t link to it. 9. We put docs, the quickstart and the API reference one click from every page, plus a repo link so developers can check activity. 10. - Docs one click from every page - Quickstart and API reference - Repository link 11. You Our site only gets updated between releases, when the team has a spare hour. 12. We write all the copy, and you approve it before we design. Then we build a site your engineers can own, or one marketing can run. 13. - All copywriting done for you - Next.js, if engineers own it - A CMS marketing can run [Tell Erfan about your site… Book a call](https://cal.com/pentaclay/discovery-call) ## What customers check on an open-source or API-first site Free for the developer. Clear for the company that pays. ### Free versus paid, side by side What the open-source or free tier does, and what the cloud or enterprise plan adds. ### Docs, quickstart and API reference One click from every page. ### Self-host and cloud options Compared plainly. ### The repository and community A link, so developers can check activity themselves. ### Reliability for the hosted version Status page and uptime target. ### Security for paying companies Certifications, SSO and data handling for the paid plan. ### Who runs it in production Companies a customer can check. ### A changelog Releases and what changed in each, so teams see the project ships. ## B2B websites we’ve launched Our most recent work for B2B teams. ### Machine Football AI - B2B - Sports AI 2026 Clubs see the scale of the model before they read a word An AI model of football is hard to picture. So the first screen leads with one number: 1.1 billion on-pitch events. The team publishes blog posts, media and glossary terms without a developer. [Read the case study](https://pentaclay.com/work/machine-football) - **1.1B** on-pitch events modeled - **18** in-house AI models ### Fronterra - B2C + B2B - AI learning 2026 Families and schools each find their own way in Families and schools wanted different things from one site. Families download a free app. Schools book a demo. A “Choose your path” choice on the first screen sends each one the right way. [Read the case study](https://pentaclay.com/work/fronterra) - **6 days** from kickoff to a live site, January 2026 - **2** sites, Fronterra and its maker Axon Park ### NOCAP Sports - $2.5M seed, 2021 - B2B - College sports 2025–2026 Universities, brands and athletes each get a page made for them One platform, three audiences: universities, brands and athletes. We built their design: a first screen that cycles through all three, a page for each, and a news room the team runs. [Read the case study](https://pentaclay.com/work/nocap-sports) ### Freehold Wealth - B2B - Property finance 2026 Investors and borrowers each get their own first step One lender, two audiences with opposite goals. Investors put money in. Borrowers take it out. So the first screen gives each one a button of their own, and every deal gets a page the team edits itself. [Read the case study](https://pentaclay.com/work/freehold-wealth) - **2** first steps on the first screen: invest or borrow - **4** deal pages in a CMS the team edits itself [See all work](https://pentaclay.com/work) ## Does your site answer these? Tick what’s true for your site today. **0** of 6 Start with the basics Customers may leave before they find what they came for. The Free Website Audit shows what to fix first. [Get a free website audit](https://pentaclay.com/free-website-audit) - Can a visitor see what is free and what is paid on one page? - Are docs and the API reference one click from every page? - Are self-host and cloud compared side by side? - Is a status page for the hosted version linked? - Are the paid plan’s security answers on the site? - Does your homepage text show up with JavaScript turned off? ## Start with one page, or the whole site ### Landing page 2 to 3 weeks, start to launch One page that explains what you sell and books the call. - What you do, in one clear message - Copywriting, done by us - Pictures of your product - Designed for desktop, tablet and phone - Built on the platform your team will edit - Booking form and tracking from day one - Every account handed over - A recorded walkthrough and 30 days of free fixes ### Full website Most booked 6 weeks, start to launch Every page written, designed and built for your team to edit. - An audit of your site and competitors - What you do, in one clear message - Logo, colors and type tidied up - Sitemap and page plan, then wireframes - Copywriting for every page - Every page for desktop, tablet and phone - Pictures of your product - A CMS your team publishes with - Old links redirected, SEO basics on every page - Every account handed over, and 30 days of free fixes [Book a call](https://cal.com/pentaclay/discovery-call) [See pricing](https://pentaclay.com/pricing) ## How a project runs. From the first call to launch in 6 weeks ### Call and scope We give you the price and the date before we design anything. What you get - Written scope, price and launch date - Notes on your current site - How rival sites explain the same thing - Who reads your site, and what each one needs ### Messaging and design We write the copy first, then design every page. What you get - What you do, in plain language - Sitemap and page plan - Wireframes - Every page for desktop, tablet and phone ### Development Built so your team can edit it without a developer. What you get - Built on the platform your team will edit - A design system - CMS templates - Forms and tracking ### Check and launch Live on the date in your contract. What you get - Design QA - Every old link redirected - SEO basics on every page - Readable by Google and AI search ### Handover Everything is handed over to you. What you get - A recorded walkthrough - Every account handed over - Your Figma files and images - 30 days of free fixes [Book a call](https://cal.com/pentaclay/discovery-call) After the call, you get the scope, price and launch date in writing within 3 business days. ## Proof, not promises. What our clients say **140+** clients in the US, UK, EU and Australia **12 years** of design experience [5.0 ★★★★★ From 7 reviews on Contra. Hired 18 times. > “The experience was truly outstanding. … Every task was completed on time…” **Verified client on Contra** Read the reviews](https://contra.com/pentaclay/reviews) **225+** banks and fintechs use software our founder designed ## What open-source and API sites run on From our own research on YC companies. Checked 17 Oct 2026 41 of 107 YC open-source companies (2021 to 2026) whose homepage runs on Next.js. 16 run Webflow, 3 Framer, 8 are client-rendered. Source: [Pentaclay study of 3,791 YC startup homepages (2,945 answered), 10 Oct 2026](https://pentaclay.com/research/yc-startup-websites) 29 of 78 YC API companies on Next.js. 13 run Webflow. Source: [Pentaclay study of 3,791 YC startup homepages (2,945 answered), 10 Oct 2026](https://pentaclay.com/research/yc-startup-websites) 52 of 114 YC AI company homepages with a self-serve link such as “Sign up”, “Get started” or “Start free”. Source: [Pentaclay audit of 114 YC AI company homepages, 13 Oct 2026](https://pentaclay.com/research/yc-startup-websites) 61 of 114 Homepages whose text says “docs” or “documentation”. Source: [Pentaclay audit of 114 YC AI company homepages, 13 Oct 2026](https://pentaclay.com/research/yc-startup-websites) ## Is Pentaclay a fit? ### This is for you if - You run an open-source project or an API business, with a paid cloud or enterprise plan. - Companies are starting to pay. - You want a marketing site your engineers can own, or one marketing can run. ### Not for you if - You have no paid plan yet and only need a project page. A template may suit you better. ## Questions about open-source and API-first websites ### Can’t find your answer? Book a call and let’s talk. [Book a call](https://cal.com/pentaclay/discovery-call) Or email us at [contact@pentaclay.com](mailto:contact@pentaclay.com) How should an open-source company show pricing? Put free and paid side by side: what the open-source version does, and what the cloud or enterprise plan adds. Then say what drives the price. Should self-host and cloud be on the same page? Yes. Show both, with who each one suits and what each one includes. Can you build the site in Next.js? Yes, if your engineers will own it. Next.js is the most common platform among YC open-source companies (41 of 107). Our client work so far is in Framer and Webflow. Our Next.js work is our own website templates. How long does it take? A full website usually takes 6 weeks, and we can work faster if your date needs it. A landing page takes 2 to 3 weeks. The date goes into the contract. ## Website services for open-source and API-first companies What teams in this industry book us for. - [Next.js development Next.js sites your engineers own](https://pentaclay.com/services/nextjs-development) - [Website migration Move platforms, keep your rankings](https://pentaclay.com/services/website-migration) - [AI company websites Websites for AI companies that sell to enterprises](https://pentaclay.com/services/ai-company-website-design) - [Website design A new site, from copywriting to launch](https://pentaclay.com/services/b2b-website-design) ### More from us Learn more - [B2B website cost](https://pentaclay.com/guides/b2b-website-cost) - [Project timeline](https://pentaclay.com/guides/website-project-timeline) - [Agency vs freelancer](https://pentaclay.com/comparison/agency-vs-freelancer) - [Framer vs Webflow](https://pentaclay.com/comparison/framer-vs-webflow) - [Templates vs custom](https://pentaclay.com/comparison/framer-templates-vs-custom-development) Company - [Pricing](https://pentaclay.com/pricing) - [How a project runs](https://pentaclay.com/process) - [Our work](https://pentaclay.com/work) - [About Pentaclay](https://pentaclay.com/about) - [FAQ](https://pentaclay.com/faq) Industries - [AI developer tools](https://pentaclay.com/industries/ai-devtools) - [AI infrastructure](https://pentaclay.com/industries/ai-infrastructure) - [LLM platforms](https://pentaclay.com/industries/llm-platforms) - [All industries](https://pentaclay.com/industries) - [AI agents](https://pentaclay.com/industries/ai-agents) Start smaller Not ready for a new website? Start with a free audit, or a ready-made template. [Free Website Audit](https://pentaclay.com/free-website-audit) [Website templates](https://pentaclay.com/templates) ## Your business grew up. Your website should too If customers need a demo just to understand what you sell, your website isn’t doing its job. - We sign an NDA on request. - You own the site, the code and every account once it’s paid. - Your first call is with Erfan, the founder. **Kazi Mohammed Erfan** Founder Don’t want to fill in the form? [Book a call directly](https://cal.com/pentaclay/discovery-call) ## Not sure? Ask AI about Pentaclay ### Pentaclay, in short Updated 17 Oct 2026 Pentaclay is a B2B website design agency for AI companies that sell to enterprises. We write, design and build marketing websites in Framer, Webflow and Next.js, and stay to help after launch. Pentaclay LLC is registered in New Mexico, USA; our team works from Dhaka, Bangladesh, with calls until 12:30pm US Eastern. Founded in 2023 by Kazi Mohammed Erfan, who brings 12 years of design experience.