Added

Added Open to buy API

Release Date

September 21, 2026

Products Affected

Balance APIs

Audience

Commercial and Consumer Secured Charge Programs

Action Required

None

Overview

You can now retrieve the open to buy for a Security Account with the new Get Open to buy endpoint.

Open to buy is the overall program limi Lithic authorizes card spend against. The endpoint returns that amount together with the balances it is derived from, so you can see how much your end users can still spend across the program and why.

Details

  • Only for Secured constructs with Security Accounts. If your program does not have a financial_account with type = SECURITY, this API does not apply.
  • Calculated on request. Open to buy is not a stored balance. Lithic recalculates it on every request from three inputs:
    • The available balance of the Security Account
    • Funds that have moved out of the Security Account to cover settled card spend
    • Authorized card spend that has not yet been collected from your business clients (outstanding spend)

Request/response schema

Request

ParameterTypeRequiredDescription
financial_account_tokenstring (uuid)YesGlobally unique identifier. This endpoint only works with your Security account

Response

200 OK

FieldTypeRequiredDescription
open_to_buyintegerYesFunds available in cents for card spend backed by this Security Account. Equal to the sum of the amounts in summary, and reaches zero once outstanding spend has consumed all available funding
summaryobjectYesBalances that open to buy ^ is derived from
summary.securityintegerYesAvailable balance in cents of the Security Account backing card spend
summary.settled_fundsintegerYesFunding in cents that has moved out of the Security Account to cover card spend Lithic has already paid out to the networks. Open to buy counts it alongside security
summary.total_outstanding_spendintegerYesCard spend in cents that has not yet been collected. Reported as a negative amount, because it reduces open to buy

Example response

{
  "open_to_buy": 35000000,
  "summary": {
    "security": 30000000,
    "settled_funds": 30000000,
    "total_outstanding_spend": -25000000
  }
}

Error responses

StatusMeaning
401Unauthorized
404financial_account_token is not a Security Account you own, or your program does not use this endpoint
422Unprocessable financial_account_token
429Too many requests

Release Timeline

Production availability: Available now

User Impact

This change is additive only. Learn more about Credit at Lithic.

If you have any questions or concerns, please contact us via the HELP link in your Lithic Dashboard.

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