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
12.9/100 minimal ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
2 APIs
Financial ServicesBankingUnited StatesCommercial BankingTreasury ManagementRegional BankOpen FinanceData Aggregation

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 12.9/100 · minimal
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 2.1 / 20
Operational Transparency 0.0 / 13
Governance 0.0 / 12
Discoverability 8.0 / 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/texas-capital-bank: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

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
LinkedIn
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
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).'
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
created: '2026-07-23'
modified: '2026-07-23'
specificationVersion: '0.19'
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