aid: columbia-banking
url: https://raw.githubusercontent.com/api-evangelist/columbia-banking/refs/heads/main/apis.yml
name: Columbia Bank
kind: company
description: >-
  Columbia Bank is an Oregon state-chartered commercial bank and the principal
  banking subsidiary of Columbia Banking System, Inc. (NASDAQ: COLB), a West
  Coast regional bank holding company headquartered in Tacoma, Washington with
  more than $50 billion in assets. The bank took the legal name "Columbia Bank"
  effective July 1, 2025, having previously operated as Umpqua Bank following the
  2023 merger of Columbia Banking System and Umpqua Holdings Corporation. On the
  open-finance front, Columbia is one of the relatively few US regional banks to
  run a first-party developer surface: Columbia API Banking, a commercial and
  treasury-management integration product exposing capabilities such as book
  transfers, ACH file imports, positive pay, stop-payment and NSF management,
  lockbox management, transaction and statement search, check images, and
  real-time account balances in JSON and XML, backed by a production-ready SDK
  and the gated Columbia API Portal. That surface is commercial/ERP-oriented
  rather than a self-serve public developer portal, and consumer-permissioned
  data access is instead delivered through the Plaid aggregator. No documented
  FDX participation or published CFPB Section 1033 posture was found.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Financial Services
- Banking
- United States
- Regional Bank
- Commercial Banking
- Treasury Management
- Open Finance
- Data Aggregation
created: '2026-07-23'
modified: '2026-07-24'
specificationVersion: '0.19'
apis:
- aid: columbia-banking:columbia-api-banking
  name: Columbia API Banking
  description: >-
    First-party commercial and treasury-management API product from Columbia
    Bank, providing programmatic access to banking data and operations for
    integration with financial software and ERP platforms. Documented
    capabilities include book transfers, ACH file imports, positive pay,
    stop-payment and NSF management, new account requests, lockbox management,
    transaction and statement retrieval, check images, and real-time account
    balances, with responses available in JSON and XML. A production-ready SDK
    (source code and sample apps) and the gated Columbia API Portal provide
    documentation and an event log for debugging. No public OpenAPI/Swagger
    specification or public base URL was found; technical reference lives behind
    the Columbia API Portal.
  humanURL: https://www.columbiabank.com/commercial/api-banking/
  tags:
  - Commercial Banking
  - Treasury Management
  - Payments
  - ACH
  properties:
  - type: Documentation
    url: https://www.columbiabank.com/commercial/api-banking/
  - type: Documentation
    url: https://www.columbiabank.com/commercial/api-banking/developer-tools/
common:
- type: DomainSecurity
  url: security/columbia-banking-domain-security.yml
- type: LLMsTxt
  url: llms/columbia-banking-llms.txt
- type: DeveloperPortal
  url: https://www.columbiabank.com/commercial/api-banking/
- type: Website
  url: https://www.columbiabank.com/
- type: Documentation
  url: https://www.columbiabank.com/commercial/api-banking/
- type: Blog
  url: https://www.columbiabank.com/blog/
- type: Support
  url: https://www.columbiabank.com/help-center/
- type: LinkedIn
  url: https://www.linkedin.com/company/umpqua-bank
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com