Preview deployments, right in Capy
When Vercel posts a preview URL on a pull request, Capy pins it next to the diff. Review the code, click through to the running app — nothing to configure.
Review the app, not just the diff
Preview URLs follow the work: live in the VM while coding, on the PR once Vercel deploys the branch.
Previews found automatically
Capy scans PR discussion comments for URLs with preview in the hostname and pins them to the PR toolbar. No webhooks, no API keys, nothing to set up.
PR comments → PR toolbar
Open the app from the review
Click Open preview in the PR view to reach the deployment Vercel built for that branch — the code and the running app, side by side.
Any Vercel project connected to GitHub
Preview before the PR exists
Add a previews hook with your app's ports to .capy/settings.json, and agents check UI changes live in the VM while they're still coding. When the PR opens, Vercel deploys the branch and review picks up from there.
.capy/settings.json → previews
The preview rules at a glance
How Capy decides what to surface, and where it shows up.
Preview behavior
- URLs read from PR discussion comments
- One-click open from the PR toolbar
- In-VM previews while coding
- Multiple ports via .capy/settings.json
- Any Vercel project connected to GitHub
- No webhooks or API keys
- First matching URL shown per PR
Other integrations
The rest of the stack Capy connects to.
GitHub
Agents branch, commit, and open PRs. Main only moves through your merge process.
View integrationLinear
Delegate issues; team mappings and branch defaults route them to the right code.
View integrationFAQ
Setup, in-VM previews, and how detection works.
Do I need to configure anything?
No. If Vercel is connected to your GitHub repo, Capy detects preview URLs from PR comments on its own — nothing to install or configure.
What about in-VM previews?
For previewing during a task, before a PR exists, add a previews hook to .capy/settings.json with the ports your app runs on. Agents then validate changes live.
Does Capy trigger Vercel deployments?
No. Capy reads the preview URLs Vercel posts on PR comments; your existing Vercel setup handles the deploy pipeline.
Can I see multiple preview URLs?
Capy surfaces the first matching preview URL per PR. For in-VM previews, you can configure multiple ports for different services.
Ship changes you've already seen live
Previews appear on PRs on their own — review the code and the live app in one place.
