Partners

Why we build on Claude and Vercel.

Claude is how our engineers write software. Vercel is where our Next.js products run. Here is why we chose them, and what that changes for the team you hire.

Claude-first

Claude-first, from the first commit.

Our engineers work in Claude Code every day. A repository's rules live in its CLAUDE.md, repeated work becomes a skill, and MCP servers connect Claude to the tools a project already uses, so the agent works inside the same guardrails as the people.

We don't keep the setup to ourselves. On Supreme Golf we ran Claude Code behind guardrails, coached their team in real sessions, and handed over the conventions. They now run their own Anthropic organisation.

Claude Code
  1. Ship the /partners page: sitemap, search index, link graph, tests.
  2. Read CLAUDE.md · “Adding a new page (SEO/GEO checklist)”
  3. Update src/app/sitemap.ts
  4. Update src/lib/search/search-index.ts
  5. Bash pnpm graph:build
  6. 53 routes · 0 dangling links
  7. Bash pnpm test:unit
  8. 0 fail
  9. Bash pnpm build
  10. ✓ Compiled successfully
From the Claude Code session that built this page.
Built on Vercel

Every change gets its own URL.

Next.js on Vercel runs under Delos, Supreme Golf and Swisspreneur. Each pull request deploys to its own preview, so you review the real product before anything merges, not a screenshot in a ticket.

On Delos the preview goes further: opening a pull request also creates its own database branch and background-job environment, and closing it tears them down. Its language-model calls go through the Vercel AI SDK.

  1. Engineer + Claude CodeWrites the change inside the repo's rules
  2. 2Pull requestOne change, one reviewable diff
  3. 3ChecksTypes · tests · CI · senior review
  4. Preview URLYou click through the real change
  5. ProductionMerged, deployed, observed
How one change ships. If the preview isn't right, it goes back to step one, not to production.
Streaver × Vercel

What your team gets.

  • Certified engineers

    We're certified at Foundations level: more than ten of our engineers hold Anthropic's Claude Certified Architect – Foundations, the number Anthropic asks for. We keep certifying until most of the company has it.

  • Review the real thing

    Every pull request has its own preview URL. You click through the change itself, on any device, before it reaches production.

  • Guardrails before speed

    Nothing Claude writes merges on its own. Type checks, automated tests, CI gates and a senior engineer's review sit between every change and production.

  • Your team keeps the setup

    The CLAUDE.md rules, skills and guardrails we set up live in your repository, not in our heads, so your engineers can carry on without us.

What teams ask us first.

Do you build with Claude Code?
Yes, it's our engineers' daily tool. Each repository carries its own CLAUDE.md rules and skills, and every change still passes type checks, tests and a senior engineer's review before it merges.
Are you a Claude Code agency?
Yes. Our engineers build with Claude Code every day, on client products and on our own, and we set it up for client teams who want to build with it themselves.
Can you teach our team to work with Claude Code?
Yes. We work alongside your engineers in real sessions on your own codebase rather than in a classroom, then hand over the conventions, skills and guardrails we set up together. That's how Supreme Golf went from prototypes to running their own Anthropic organisation.
Can you roll out Claude Code across an engineering team?
Yes. We set up the rules each repository carries in its CLAUDE.md, the skills that turn repeated work into one command, the MCP servers that connect Claude to your tools, and the guardrails around all of it. Then we hand the setup to your team. Supreme Golf now runs its own Anthropic organisation.
Is it safe to let Claude Code work on our codebase?
Nothing Claude writes merges on its own. Type checks, automated tests, CI gates and a senior engineer's review sit between every change and production, and every pull request gets its own preview before it merges.
How do you keep Claude Code costs under control?
By giving each task the cheapest model that does it well: subagents on Haiku and Sonnet for the routine steps, Opus where the reasoning needs it. One of our engineers wrote up how he stopped hitting the usage limit.
Are your engineers Claude certified?
We're certified at Foundations level: more than ten of our engineers hold Anthropic's Claude Certified Architect – Foundations, the number Anthropic asks for. We keep certifying until most of the company has it.
What if our product doesn't run on Vercel?
That's fine. We also build on AWS (Delos pairs Vercel with its own AWS stack), and we recommend the platform that fits your product, not the one we like best.
Work with us

Build with a Claude-first team.

Tell us what you're building. If Claude or Vercel isn't the right fit for it, we'll say so on the first call.

Fabián Larrañaga, Streaver's CEOTalk to our CEOSee the work