Stripe: Update a cash balance's settings

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Operation stripe.postcustomerscustomercashbalance

Provider route: POST /v1/customers/{customer}/cash_balance. Alter supplies the connection’s credentials and routing.

Call through Alter

Install @alter-ai/sdk @alter-ai/stripe with npm, or alter-sdk-stripe with pip. Supply your connected customer’s grant ID and the arguments described below.

import { App } from "@alter-ai/sdk";
import { StripeIntegration } from "@alter-ai/stripe";

async function execute(input: Parameters<StripeIntegration["customers"]["postCustomersCustomerCashBalance"]>[0]) {
  const app = new App({ apiKey: process.env.ALTER_API_KEY! });
  try {
    const provider = new StripeIntegration(app, { grantId: process.env.PROVIDER_GRANT_ID! });
    const call = await provider.customers.postCustomersCustomerCashBalance(input);
    const result = await call.wait();
    return result.bodyJson();
  } finally {
    await app.close();
  }
}

import os
from alter_sdk import App
from alter_sdk_stripe import StripeIntegration

async def execute(arguments):
    async with App(api_key=os.environ["ALTER_API_KEY"]) as app:
        provider = StripeIntegration(app, {"grant_id": os.environ["PROVIDER_GRANT_ID"]})
        call = await provider.customers.post_customers_customer_cash_balance(arguments)
        result = await call.wait()
        return result.body_json()

Input

Field	Type	Presence	Description and constraints
$	object	Root	Additional keys: not allowed
path	object	Required within parent	Additional keys: not allowed
path.customer	string	Required within parent	Maximum length: 5000
headers	object	Optional	Additional keys: not allowed
headers.Idempotency-Key	string	Optional	Minimum length: 1 Maximum length: 255
body	object	Optional	Additional keys: not allowed
body.expand	array	Optional	Specifies which fields in the response should be expanded.
body.expand[]	string	Each item	Maximum length: 5000
body.settings	object	Optional	A hash of settings for this cash balance.
body.settings.reconciliation_mode	string	Optional	One of: automatic, manual, merchant_default

Response

Response media type: application/json. The table describes the pinned successful response. Referenced models link to their complete fields.

Field	Type	Presence	Description and constraints
$	Model	Root	Expand Retrieve a cash balance — response body

Referenced models: Retrieve a cash balance — response body

Schemas

Retrieve a cash balance — response body

Field	Type	Presence	Description and constraints
$	object	Root	A customer's `Cash balance` represents real funds. Customers can add funds to their cash balance by sending a bank transfer. These funds can be used for payment and can eventually be paid out to your bank account.
available	JSON	Optional
available (anyOf 1)	object	Alternative	A hash of all cash balances available to this customer. You cannot delete a customer with any cash balances, even if the balance is 0. Amounts are represented in the [smallest currency unit](https://docs.stripe.com/currencies#zero-decimal). Additional keys: see wildcard field
available (anyOf 1).*	JSON	Additional keys
available (anyOf 1).* (anyOf 1)	integer	Alternative
available (anyOf 1).* (anyOf 2)	string	Alternative	Pattern: ^-?[0-9]+(?:\.[0-9]+)?(?:[eE][+-]?[0-9]+)?$
available (anyOf 2)	null	Alternative
customer	string	Required within parent	The ID of the customer whose cash balance this object represents. Maximum length: 5000
customer_account	JSON	Optional
customer_account (anyOf 1)	string	Alternative	The ID of an Account representing a customer whose cash balance this object represents. Maximum length: 5000
customer_account (anyOf 2)	null	Alternative
livemode	boolean	Required within parent	If the object exists in live mode, the value is `true`. If the object exists in test mode, the value is `false`.
object	string	Required within parent	String representing the object's type. Objects of the same type share the same value. Known values: cash_balance
settings	Model	Required within parent	Expand Retrieve a cash balance — response body — settings

Referenced models: Retrieve a cash balance — response body — settings

Retrieve a cash balance — response body — settings

Field	Type	Presence	Description and constraints
$	object	Root
reconciliation_mode	string	Required within parent	The configuration for how funds that land in the customer cash balance are reconciled. Known values: automatic, manual
using_merchant_default	boolean	Required within parent	A flag to indicate if reconciliation mode returned is the user's default or is specific to this customer cash balance

Policy, approvals and errors

SDK function policy ID: stripe.postcustomerscustomercashbalance. Catalog operation: PostCustomersCustomerCashBalance. Rules can name either ID; function rules distinguish managed calls and conservatively cover raw calls sharing the route. Existing grant permissions and policy rules apply. wait() returns an immediate result or waits for a required approval; it never approves the request itself. Persist the approval ID to resume after a restart.

Provider errors retain their response; JSON decoding raises ProviderAPIError for provider failures. ManagedOperationError identifies contract/input/retention errors. See error handling and provider-specific behavior. Sensitive input may be refused before approval storage. A decoding error never resubmits a write.

Pinned headers: {"Stripe-Version": "2026-09-30.endive"}

Official provider source