Barclays US website screenshot

Barclays US

Barclays US is the United States consumer banking arm of Barclays PLC, operated through Barclays Bank Delaware, a Delaware state-chartered bank headquartered in Wilmington. Doing business as Barclays US (barclaysus.com redirects to cards.barclaycardus.com), it is one of the largest co-branded credit card issuers in the country, running highly customized card programs for major travel, airline, retail, and affinity partners (JetBlue, American Airlines, Wyndham, AARP, Gap, and others), alongside small-business cards, installment loans, point-of-sale financing, and a direct-to-consumer online savings and CD franchise. Unlike Barclays UK — which operates a mandated PSD2 Open Banking API Exchange at developer.barclays.com — the US consumer entity publishes no first-party public developer portal or downloadable API specification. US open finance is voluntary and fragmented, so consumer- permissioned account and card data from Barclays US is reached in practice through third-party data aggregators rather than a documented first-party API. No FDX-conformant data-access endpoint or formally stated CFPB Section 1033 posture is published on the US site as of this profile.

Barclays US is profiled on the APIs.io network. Tagged areas include Financial Services, Banking, United States, Credit Cards, and Consumer Banking.

Barclays US’s developer surface includes engineering blog, support, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
15.0/100 emerging ▬ flat Agent 0/100 human only Full breakdown ↓
scored 2026-07-27 · rubric v0.5
0 APIs
Financial ServicesBankingUnited StatesCredit CardsConsumer BankingCo-Brand CardsOpen FinanceData Aggregation

Kin Score

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scored 2026-07-27 · rubric v0.5
Composite quality — 15.0/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 1.3 / 20
Commercial Clarity 4.2 / 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/barclays-us: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

Security Posture 1

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

Barclays Us Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 SecurityCenter
SecurityCenter

Operate 1

Status, limits, changes, and where to get help

Support
Support

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 TermsOfService
TermsOfService

Company 3

The organization behind the API

Website
Website
 About
About
 Blog
Blog

Other 1

Properties that don't map to a standard resource type

ParentCompany
ParentCompany

Source (apis.yml)

apis.yml Raw ↑ 
aid: barclays-us
url: https://raw.githubusercontent.com/api-evangelist/barclays-us/refs/heads/main/apis.yml
name: Barclays US
kind: company
description: Barclays US is the United States consumer banking arm of Barclays PLC, operated through Barclays Bank Delaware,
  a Delaware state-chartered bank headquartered in Wilmington. Doing business as Barclays US (barclaysus.com redirects to
  cards.barclaycardus.com), it is one of the largest co-branded credit card issuers in the country, running highly customized
  card programs for major travel, airline, retail, and affinity partners (JetBlue, American Airlines, Wyndham, AARP, Gap,
  and others), alongside small-business cards, installment loans, point-of-sale financing, and a direct-to-consumer online
  savings and CD franchise. Unlike Barclays UK — which operates a mandated PSD2 Open Banking API Exchange at developer.barclays.com
  — the US consumer entity publishes no first-party public developer portal or downloadable API specification. US open finance
  is voluntary and fragmented, so consumer- permissioned account and card data from Barclays US is reached in practice through
  third-party data aggregators rather than a documented first-party API. No FDX-conformant data-access endpoint or formally
  stated CFPB Section 1033 posture is published on the US site as of this profile.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Financial Services
- Banking
- United States
- Credit Cards
- Consumer Banking
- Co-Brand Cards
- Open Finance
- Data Aggregation
created: '2026-07-23'
modified: '2026-07-23'
specificationVersion: '0.19'
apis: []
common:
- type: DomainSecurity
  url: security/barclays-us-domain-security.yml
- type: Website
  url: https://cards.barclaycardus.com/
- type: About
  url: https://cards.barclaycardus.com/banking/about-us/
- type: Blog
  url: https://cards.barclaycardus.com/banking/about-us/news-and-views/
- type: Support
  url: https://cards.barclaycardus.com/banking/contact-us/
- type: PrivacyPolicy
  url: https://cards.barclaycardus.com/banking/privacy-policy/
- type: TermsOfService
  url: https://cards.barclaycardus.com/banking/terms-of-use/
- type: SecurityCenter
  url: https://www.barclaycardus.com/servicing/security-center
- type: ParentCompany
  url: https://www.barclays.com/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com