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Stripe Connect Onboarding Validator

Audit your planned Stripe Connect implementation against 15+ production gotchas before you ship. Built from real failure modes we've seen on production marketplaces — KYC by country, webhook coverage, dispute liability, idempotency. Get a health score and prioritized fix list.

Account Setup

Webhook Coverage

Compliance & Operations

Stripe Connect Health Score

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out of 100

About this score

  • Critical issues: -20 points each (will break in production)
  • Warnings: -8 points each (will cost time/money over months)
  • Good signals: +2 points each (you're following Stripe's recommended patterns)
  • Score is heuristic — your actual risk depends on volume, seller categories, and policies. Use this as a checklist, not a verdict.

Found critical issues? Let's fix them before you ship.

We've shipped Stripe Connect on a vacation rental marketplace, a custom Rails commerce platform, and three smaller side projects. We'll review your specific setup — webhooks, KYC plan, dispute handling, idempotency — in a 30-minute call and tell you exactly what will break in production. Free.

We respond within 1 business day. Your audit is private.

The 15 production gotchas this validator checks

This isn't theoretical — every rule in the validator comes from a specific failure mode we've watched marketplaces hit. The full list with explanations is in our Stripe Connect production gotchas post. Here's the short version:

Top 5 critical failures we see

  1. Missing account.updated webhook — sellers get disabled by Stripe; you never know; orders never settle.
  2. No idempotency keys — retried charges hit production twice; refunds get messy.
  3. Custom + emerging markets — KYC document collection becomes a permanent engineering burden across India, Brazil, Mexico.
  4. Direct charges + platform-owned customer — chargebacks hit the seller's account; you lose disputes you can't influence.
  5. Hold refund pattern on Express — you can't hold funds Stripe is custodying. Won't work as designed.

The 3 webhooks that determine whether your marketplace stays solvent

If you want a full implementation review of your Stripe Connect code, our marketplace engineering team does production audits — we've done this for vacation rentals, services marketplaces, and ecommerce platforms. See our vacation rental case study for an end-to-end example.

FAQ

When should I use Express vs Custom Stripe Connect accounts?

Use Express when you want Stripe to handle KYC, disputes, tax forms, and the seller dashboard — which is most marketplaces under $1M/month GMV. Use Custom only when you have specific compliance, branding, or fee-structure requirements. Custom is more powerful but adds ~6 weeks of engineering. Our decision framework walks through this in depth.

What happens if I don't handle the account.updated webhook?

Sellers get disabled or restricted by Stripe (for compliance reasons, document expiry, or risk review) without your platform knowing. They keep receiving orders, but payouts don't settle. Your support team finds out from angry sellers weeks later. This is the single most common Stripe Connect operational failure.

Can I switch from Custom to Express later?

Not directly — Stripe doesn't support migrating account types. You can onboard new sellers as Express while letting existing Custom accounts run, but unifying is painful. Pick correctly the first time.

Why is Stripe Connect onboarding harder for Indian sellers?

Indian sellers require PAN, GST registration, and bank account verification with documents Stripe needs to validate. On Custom you build this UI yourself; on Express, Stripe handles it. The same applies to Brazil, Mexico, and other emerging markets — KYC depth is the gating factor.

How do disputes work with Stripe Connect?

On destination charges, the platform owns the customer relationship and can respond to disputes. On direct charges, the seller's account is on the hook. On Custom, you're responsible for evidence collection. On Express, Stripe handles dispute response. The $15 dispute fee is non-refundable even if you win.

Related reading:

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