Register a Carta developer app
Carta exposes two API environments — Production (api.carta.com, live data) and
Playground (api.playground.carta.team, real playground tenant data). Sign up for
developer access first, create a Playground app to test the integration, then follow
Carta’s Migrate to Production guide when you’re ready to go live.
Sign in to Carta
Sign in to your Carta developer account.
- If you don’t have developer access yet, register at the Carta developer portal. Carta reviews applications monthly.
Create a Playground app
In the developer portal, click Create App and complete the app creation form.
- Name — a display name for the app (for example,
StackOne Integration). - Description — a short description of the integration.
- Company name — the company that owns the integration.
- Homepage URL — a public URL for the integration or company.
- Icon — a JPG or PNG image, minimum 300px by 300px.
- Grant type — select OAuth 2.0 (Authorization Code).
- Callbacks — paste
https://api.stackone.com/connect/oauth2/carta/callback. Callbacks must exactly match at authorize-time. - Scopes — enable the scopes your integration needs (see the next section).
Copy the Client ID and Client Secret
After creating the app, click View app details and open the API Keys section.
- Copy the Client ID from the app configuration.
- Generate and copy the Client Secret — treat this like a password. It is shown only when generated.
- Store both securely for use later.
Migrate to production
When the Playground integration is working end to end, follow Carta’s Migrate to
Production guide
to promote the app. Carta must review and approve the scopes bound to the
production app before it can be used against live data.
Select the scopes your integration needs
Enable each scope your integration needs when creating the app. Scopes are bound at the
developer-app level — you cannot request scopes at authorize-time that weren’t granted
to the app.
Creating the StackOne Connector Profile
To create the Connector Profile in StackOne for Carta:Navigate to Connector Profiles