---
title: "POST /v1/organizations/{organizationUuid}/register-aba"
method: POST
path: "/v1/organizations/{organizationUuid}/register-aba"
tags: ["Organizations"]
---

# POST /v1/organizations/{organizationUuid}/register-aba

`POST /v1/organizations/{organizationUuid}/register-aba`

## Request

- Base URL: `https://api.casaphq.com` (the document declares no server; this is the origin it was published from)
- URL: `https://api.casaphq.com/v1/organizations/{organizationUuid}/register-aba`
- Auth: API key in header `Authorization`
- TypeScript: <https://skmtc.dev/casaphq/apis/casap-api/docs/v1/organizations/:organizationUuid/register-aba/post.ts> (a function with typed inputs; its response is checked against the schema)

## Path parameters

- `organizationUuid` string, required

## Request body

- OrganizationsRegisterABABody
  - `aba` string

## Response `200`

A successful response.

- V1RegisterABAResponse

## Other responses

- `default`: An unexpected error response.

## Changes

- **2026-09-16** `433343b5fb59`: 1 info
  - endpoint added
- **2026-09-11** `fbe765c725cb`: 1 breaking
  - api path removed without deprecation

[Operation history](https://skmtc.dev/casaphq/apis/casap-api/changes/v1/organizations/:organizationUuid/register-aba/post.md)

---

[API](https://skmtc.dev/casaphq/apis/casap-api.md) - [All operations](https://skmtc.dev/casaphq/apis/casap-api/llms.txt) - [OpenAPI document](https://skmtc.dev/casaphq/apis/casap-api/revisions/f159f2046015?raw)