TCF Financial Corporation

Profile for TCF Financial Corporation, a former Detroit-headquartered regional bank holding company (Twin City Building and Loan Association, founded 1923). TCF was merged into Huntington Bancshares Incorporated on June 9, 2021, and the TCF brand was fully retired. This repository is preserved for historical record only — TCF Financial no longer operates and exposes no APIs. All banking, treasury, deposit, and lending services formerly offered under the TCF brand are now operated by Huntington National Bank under the Huntington brand. See the huntington-bancshares repository for current API surface (which is itself minimal; Huntington exposes no public developer portal).

TCF Financial Corporation is profiled on the APIs.io network. Tagged areas include Banking, Regional Bank, Defunct, Merger, and Historical.

🌐 Visit website 📡 Source on GitHub

5.7/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5

0 APIs

BankingRegional BankDefunctMergerHistorical

Kin Score

Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5

Composite quality — 5.7/100 · minimal

Contract Quality 0.0 / 25

Developer Ergonomics 0.0 / 20

Commercial Clarity 0.0 / 20

Operational Transparency 0.0 / 13

Governance 0.0 / 12

Discoverability 6.8 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 15

MCP Server 0 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/tcf-financial: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Resources

Build 1

SDKs, sample code, and the tooling you integrate with

SuccessorGitHub

SuccessorGitHub

Other 5

Properties that don't map to a standard resource type

Successor

Successor

SuccessorProfile

SuccessorProfile

MergerAnnouncement

MergerAnnouncement

SECEDGAR

SECEDGAR

Wikipedia

Wikipedia

Source (apis.yml)

name: TCF Financial Corporation
description: 'Profile for TCF Financial Corporation, a former Detroit-headquartered regional

  bank holding company (Twin City Building and Loan Association, founded 1923).

  TCF was merged into Huntington Bancshares Incorporated on June 9, 2021, and

  the TCF brand was fully retired. This repository is preserved for historical

  record only — TCF Financial no longer operates and exposes no APIs. All

  banking, treasury, deposit, and lending services formerly offered under the

  TCF brand are now operated by Huntington National Bank under the Huntington

  brand. See the huntington-bancshares repository for current API surface (which

  is itself minimal; Huntington exposes no public developer portal).'
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source: []
  generated: '2026-07-22'
  method: derived
image: https://avatars.githubusercontent.com/u/api-evangelist
created: '2026-05-05'
modified: '2026-05-23'
url: https://github.com/api-evangelist/tcf-financial
specificationVersion: '0.16'
tags:
- Banking
- Regional Bank
- Defunct
- Merger
- Historical
apis: []
common:
- type: Successor
  url: https://www.huntington.com
- type: SuccessorGitHub
  url: https://github.com/Huntington-National-Bank
- type: SuccessorProfile
  url: https://github.com/api-evangelist/huntington-bancshares
- type: MergerAnnouncement
  url: https://ir.huntington.com/press-releases
- type: SECEDGAR
  url: https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000273288
- type: Wikipedia
  url: https://en.wikipedia.org/wiki/TCF_Financial_Corporation
maintainers:
- FN: API Evangelist
  url: https://apievangelist.com
  email: info@apievangelist.com
x-status: defunct
x-merged-into: huntington-bancshares
x-merger-close-date: '2021-06-09'
x-former-hq: Detroit, Michigan
x-former-assets-usd-billions: 47.8
x-former-employees: 7123
x-former-branches: 478
x-former-states-served:
- Minnesota
- Illinois
- Michigan
- Colorado
- Wisconsin
- Ohio
- South Dakota
x-founded: '1923'
x-former-ticker: TCF
x-fortune:
- Fortune 1000