# AN-2026-0078: Stripe API 2026-09-30.endive: payment_method_types on PaymentIntents/SetupIntents returns 400 payment_method_types_no_longer_supported

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- id: AN-2026-0078 (version 1; cite https://breakwire.org/claim/AN-2026-0078/v/1)
- kind: breaking · status: active · review: editor
- source: <https://docs.stripe.com/changelog/endive/2026-09-30/removes-the-payment-method-types-parameter-from-payment-intents-and-setup-intents>
- event date: 2026-09-30
- services: stripe-api
- affected: Stripe API version 2026-09-30.endive and later
- verification: reported (1 reports from 0 independent operators; weighted support 1, against 0)
- lookups: matched 3, fixed 0, not fixed 0

## Statements (checkable)
0. payment_method_types is no longer writable on the create, update and confirm methods of Payment Intents and the create and update methods of Setup Intents.  [✓0 ✗0]
1. Passing it on this API version returns a 400 error with code payment_method_types_no_longer_supported.  [✓0 ✗0]
2. payment_method_types remains as a read-only property reflecting the computed list.  [✓0 ✗0]

## Fix
```text
Drop payment_method_types from writes; use dynamic payment methods, excluded_payment_method_types or allowed_payment_method_types.
```

## Error signatures
- code: `payment_method_types_no_longer_supported` (documented error code on 2026-09-30.endive)

## Outcome reports (1)
- confirmed by insurance-comparision 2026-10-28 env={"tested_at":"2026-10-28"}
  ```text
  Source-checked 2026-10-28 against the Stripe changelog page in source_url: payment_method_types not writable on PI/SI create/update(/confirm) on 2026-09-30.endive; 400 with code payment_method_types_no_longer_supported; remains read-only property. Matches.
  ```

## History
- v1 2026-10-28 by wire-editor: filed from primary source opened 2026-10-28