Texas Capital Bank

Texas Capital Bank, National Association is the banking subsidiary of Texas Capital Bancshares, Inc. (NASDAQ: TCBI), a Dallas-headquartered full-service financial services firm founded in 1998 with roughly $31.5 billion in assets (FYE 2025). As a nationally chartered commercial bank it serves businesses, entrepreneurs, and institutions across Texas and the United States with commercial and business banking, treasury management, mortgage/warehouse finance, and investment banking. On the open-finance dimension the bank is relationship-first rather than developer-first: it markets treasury and ERP API integrations (including its ConnectNow embedded banking for Sage and NetSuite, direct platform integrations, and SFTP/XChange file transfer) but exposes them through partner onboarding with dedicated bankers, not a public self-serve developer portal. There is no public first-party developer portal, no downloadable OpenAPI/Swagger, and no self-serve API signup. Consumer account and transaction data is made available to permissioned third parties through the Finicity (Mastercard) aggregator rather than a first-party API, which is the honest posture for most US regional banks under the voluntary, fragmented US open-banking landscape (CFPB Section 1033 and the industry FDX standard).

Texas Capital Bank publishes 2 APIs on the APIs.io network. Tagged areas include Financial-Services, Banking, United States, Commercial Banking, and Treasury Management.

Texas Capital Bank’s developer surface includes engineering blog, support, and 4 more developer resources.

🌐 Visit website 📡 Source on GitHub

8.6/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

2 APIs

Financial-Services Banking United States Commercial Banking Treasury Management Regional Bank Open Finance Data Aggregation

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 8.6/100 · minimal

Contract Quality 0.0 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 1.8 / 17

Operational Transparency 0.0 / 11

Contract Governance 0.0 / 10

Discoverability 5.0 / 9

Regulatory Posture 1.9 / 15

Agent readiness — 0/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/texas-capital-bank: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 2

Individual APIs this provider publishes, each with its own machine-readable definition.

Texas Capital Bank Treasury & ERP Integration APIs

Relationship-based, partner-onboarded API and integration options for treasury and ERP connectivity — including ConnectNow embedded banking for Sage and NetSuite, direct platfor...

Consumer Data Access (Aggregator)

Consumer-permissioned account and transaction data is made available to third parties through the Finicity (Mastercard) data aggregator rather than a first-party Texas Capital B...

Security Posture 1

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Texas Capital Bank Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

Support

Support

Commercial 1

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Source (apis.yml)

aid: texas-capital-bank
url: https://raw.githubusercontent.com/api-evangelist/texas-capital-bank/refs/heads/main/apis.yml
name: Texas Capital Bank
kind: company
description: 'Texas Capital Bank, National Association is the banking subsidiary of Texas Capital Bancshares, Inc. (NASDAQ:
  TCBI), a Dallas-headquartered full-service financial services firm founded in 1998 with roughly $31.5 billion in assets
  (FYE 2025). As a nationally chartered commercial bank it serves businesses, entrepreneurs, and institutions across Texas
  and the United States with commercial and business banking, treasury management, mortgage/warehouse finance, and investment
  banking. On the open-finance dimension the bank is relationship-first rather than developer-first: it markets treasury and
  ERP API integrations (including its ConnectNow embedded banking for Sage and NetSuite, direct platform integrations, and
  SFTP/XChange file transfer) but exposes them through partner onboarding with dedicated bankers, not a public self-serve
  developer portal. There is no public first-party developer portal, no downloadable OpenAPI/Swagger, and no self-serve API
  signup. Consumer account and transaction data is made available to permissioned third parties through the Finicity (Mastercard)
  aggregator rather than a first-party API, which is the honest posture for most US regional banks under the voluntary, fragmented
  US open-banking landscape (CFPB Section 1033 and the industry FDX standard).'
deliveryModel:
  model: unknown
  open_source: false
  commercial: false
  callable_host: false
  label: Delivery model not determined — needs a product licence on record
  confidence: low
  source:
  - none
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-09-02'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Financial-Services
- Banking
- United States
- Commercial Banking
- Treasury Management
- Regional Bank
- Open Finance
- Data Aggregation
tags_raw:
- Financial Services
- Banking
- United States
- Commercial Banking
- Treasury Management
- Regional Bank
- Open Finance
- Data Aggregation
created: '2026-07-23'
modified: '2026-07-23'
specificationVersion: '0.23'
apis:
- aid: texas-capital-bank:treasury-erp-integration
  name: Texas Capital Bank Treasury & ERP Integration APIs
  description: Relationship-based, partner-onboarded API and integration options for treasury and ERP connectivity — including
    ConnectNow embedded banking for Sage and NetSuite, direct platform integrations, custom APIs, and SFTP (XChange) file
    transfer. Access is arranged with dedicated bankers; no public developer portal, self-serve signup, or downloadable OpenAPI/Swagger
    specification is published.
  humanURL: https://texascapitalbank.com/commercial-banking/products-solutions/application-programming-interface
  tags:
  - Treasury
  - ERP Integration
  - Payments
  properties:
  - type: Documentation
    url: https://texascapitalbank.com/commercial-banking/products-solutions/application-programming-interface
- aid: texas-capital-bank:consumer-data-access
  name: Consumer Data Access (Aggregator)
  description: Consumer-permissioned account and transaction data is made available to third parties through the Finicity
    (Mastercard) data aggregator rather than a first-party Texas Capital Bank API. This is the honest US open-finance posture
    for the institution — no direct FDX-conformant or first-party data-access API is publicly documented.
  humanURL: https://fintable.io/coverage/banks/United%20States/848_texas-capital-bank
  tags:
  - Open Finance
  - Data Aggregation
  - Finicity
  properties:
  - type: Documentation
    url: https://fintable.io/coverage/banks/United%20States/848_texas-capital-bank
common:
- type: DomainSecurity
  url: security/texas-capital-bank-domain-security.yml
- type: Website
  url: https://texascapitalbank.com/
- type: LinkedIn
  url: https://www.linkedin.com/company/texas-capital-bank
- type: Blog
  url: https://texascapitalbank.com/insights
- type: Support
  url: https://www.texascapitalbank.com/helpful-information/contact-us
- type: PrivacyPolicy
  url: https://texascapitalbank.com/online-privacy-policy-url
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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