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).
Index entry only — little beyond a description and a link, and nothing machine-readable enough for an agent to act on without a human reading the site first.
TCF Financial Corporation is tracked in the API Evangelist network. This page is the human-readable profile that sits on top of the machine-readable index we maintain at apis.io.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — TCF Financial Corporation scores 5.7/100 (minimal), with a separate agent-readiness read of 0/100 (human only). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
Resources
Every other property we hold for TCF Financial Corporation — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Build 1
SDKs, sample code, and the tooling you integrate with
Other 5
Properties that don't map to a standard resource type
TCF Financial Corporation is in the network as a tracked entity. We haven't yet indexed a public API surface for it — when one is published, the artifacts, score, and agent-readiness read will appear here automatically. The source repository is where that profile is built.
← All providers · Data indexed from github.com/api-evangelist/tcf-financial · machine-readable index on apis.io