1 min read
Stripe (customer capture)
Mirror each submission as a Stripe Customer in your Stripe account using a restricted API key (rk_…) with Customers: Write only. This is for lead capture-not for charging cards and not the same as paying for your Formspring subscription.
What you need
- Stripe account where you can create restricted keys.
- Form fields for email (required for meaningful customers) and optionally name.
What Formspring does
Formspring posts application/x-www-form-urlencoded to https://api.stripe.com/v1/customers with email, optional name, description, and metadata (including submission_id, form_public_id, plus up to twenty extra scalar fields with length caps).
Each submission currently creates a new Customer record; dedupe in Stripe or use HubSpot if you need a single canonical CRM row.
Steps
- In Stripe, create a restricted key with only Customers: Write.
- In Formspring, open your form → Integrations → Stripe → paste the key → confirm email/name field names → Save.
- Submit a test; verify the Customer in Stripe and Deliveries.
Tips
- Never paste a full secret key (
sk_live_…) into a form integration. - For Formspring subscription billing, see Stripe billing, not this page.