Capital One website screenshot

Capital One

Capital One is a US money-center bank and financial services company offering credit cards, checking and savings accounts, loans, and auto financing. Through the Capital One DevExchange developer program the bank publishes a catalog of partner-facing production APIs for account lookup, transaction authorizations, credit offers, customer transactions, credit card applications, auto financing, proactive prescreen, partner account summary, shop with rewards, and public key sharing for client authentication. Access is secured with OAuth 2.0 and a public sandbox supports pre-production integration, with production access gated behind partner approval. Developer documentation is HTML-only (the portal is a single-page app); Capital One does not publish downloadable OpenAPI specifications. As an FDX member, Capital One also supports consumer-permissioned open-finance data access through aggregators in the US voluntary open-banking context.

Capital One publishes 14 APIs on the APIs.io network. Tagged areas include Auto Finance, Authorizations, Banking, Credit Cards, and Credit Offers.

Capital One’s developer surface includes documentation, getting-started guide, sandbox, FAQ, support, engineering blog, authentication, and 18 more developer resources.

47.2/100 developing ▲ 7.1 Agent 35/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
14 APIs
Auto FinanceAuthorizationsBankingCredit CardsCredit OffersDevExchangeFinancial ServicesFDXOpen BankingOAuth 2.0PaymentsRewardsUnited StatesFortune 500

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 47.2/100 · developing
Contract Quality 10.8 / 25
Developer Ergonomics 10.4 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 4.8 / 13
Governance 1.5 / 12
Discoverability 9.3 / 10
Agent readiness — 35/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 4
Consent & Bot Identity 3 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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/capital-one: 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 14

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

Capital One Account Lookup API

The Capital One Account Lookup API is a DevExchange product that lets approved partners resolve and retrieve consumer account information such as balances, transaction history, ...

Capital One Authorizations API

The Capital One Authorizations API lets approved partners programmatically validate and authorize financial transactions against Capital One's platform in real time. It supports...

Capital One Credit Offers API

The Capital One Credit Offers API provides approved partners programmatic access to Capital One credit card offers, including rewards programs, interest rates, fees, and eligibi...

Capital One Customer Transactions

The Capital One Customer Transactions product exposes consumer-permissioned transaction data so approved partners can retrieve and reconcile a customer's Capital One transaction...

Capital One Data Protection and Client Authentication Public Key Sharing API

The Capital One Data Protection and Client Authentication Public Key Sharing API lets integrating clients securely exchange public keys with Capital One to establish encrypted, ...

Capital One Digital Auto Financing Credit Application API

The Capital One Digital Auto Financing Credit Application API lets approved partners such as dealers and auto-marketplaces submit and process auto loan applications through Capi...

Capital One Enhanced Decisioning Data API

The Capital One Enhanced Decisioning Data API gives approved partners access to data signals that support credit, risk, and fraud decisioning workflows. Partners use it to enric...

Capital One In-Store Credit Card Payments API

The Capital One In-Store Credit Card Payments API lets merchants process Capital One credit card payments directly within their in-store point-of-sale flows. It supports accepti...

Capital One POS Credit Card Application API

The Capital One POS Credit Card Application API lets merchants embed a Capital One credit card application directly into their point-of-sale checkout experience, so customers ca...

Capital One Partner Account Summary API

The Capital One Partner Account Summary API provides approved partners consumer-permissioned access to account summary information such as balances, transaction history, and pen...

Capital One Pre-Application Orchestrator API

The Capital One Pre-Application Orchestrator API coordinates the pre-application steps for financial products such as loans and credit cards, including gathering and validating ...

Capital One Real-Time Proactive Prescreen API

The Capital One Real-Time Proactive Prescreen API lets approved partners assess consumer creditworthiness in real time to support targeted, pre-screened credit offers. Partners ...

Capital One Retrieve Consumer Bank Products API

The Capital One Retrieve Consumer Bank Products API lets approved partners access information about a consumer's Capital One banking products such as credit cards, checking acco...

Capital One Shop with Rewards API

The Capital One Shop with Rewards API lets partners integrate Capital One credit card reward points and benefits into online shopping experiences, so cardholders can unlock deal...

Scroll for all 14

GraphQL 1

GraphQL schemas published by this provider.

Capital One GraphQL Schema

Capital One is a financial services company offering credit cards, checking and savings accounts, loans, and auto financing in the United States. Through the Capital One DevExch...

GRAPHQL

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Capital One Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Security Posture 3

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

Capital One Authentication

oauth2 · 1 scheme

SECURITY

Capital One Domain Security

TLSv1.3 · DMARC

SECURITY

Capital One Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Press 5

Recent news and press coverage referencing this provider.

Capital One and Clarity Money Announce Data Sharing ...

2026-05-25

Capital One

2026-05-25

Capital One Center

2026-05-25

Q4 2025 Earnings Release Presentation

2026-05-25

Capital One reaps post-acquisition rewards

2026-05-25

Resources

Get Started 3

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Build 1

SDKs, sample code, and the tooling you integrate with

Access & Security 6

Authentication, authorization, and security posture

Operate 3

Status, limits, changes, and where to get help

Commercial 4

Pricing, plans, and the legal terms of use

Company 3

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: capital-one
url: https://raw.githubusercontent.com/api-evangelist/capital-one/refs/heads/main/apis.yml
apis:
- aid: capital-one:account-lookup-api
  name: Capital One Account Lookup API
  tags:
  - Accounts
  - Banking
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/account-lookup?id=24064-1
  properties:
  - url: https://developer.capitalone.com/products/account-lookup?id=24064-1
    type: Documentation
  - url: graphql/capital-one-graphql.md
    type: GraphQL
  description: The Capital One Account Lookup API is a DevExchange product that lets approved partners resolve and retrieve
    consumer account information such as balances, transaction history, and account status. Integrators use it to surface
    up-to-date Capital One account details inside partner applications and dashboards. Access is secured with OAuth 2.0 client
    credentials, exercised first in the DevExchange sandbox and then promoted to production after partner approval. Documentation
    is HTML-only on the DevExchange portal; no downloadable OpenAPI is published.
- aid: capital-one:authorizations-api
  name: Capital One Authorizations API
  tags:
  - Authorizations
  - Payments
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/authorizations?id=658618-1
  properties:
  - url: https://developer.capitalone.com/documentation/o-auth
    type: Documentation
  description: The Capital One Authorizations API lets approved partners programmatically validate and authorize financial
    transactions against Capital One's platform in real time. It supports payment authorization decisioning and fraud-reduction
    workflows for merchants and fintechs integrating with Capital One card products. Access is OAuth 2.0 secured through DevExchange,
    with a sandbox for pre-production testing and a partner-approval gate for production. Reference material is HTML documentation
    on the portal; there is no publicly downloadable machine-readable specification.
- aid: capital-one:credit-offers-api
  name: Capital One Credit Offers API
  tags:
  - Credit Cards
  - Credit Offers
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/credit-offers?id=3105-3
  properties:
  - url: https://developer.capitalone.com/products/credit-offers?id=3105-3
    type: Documentation
  description: The Capital One Credit Offers API provides approved partners programmatic access to Capital One credit card
    offers, including rewards programs, interest rates, fees, and eligibility criteria. Partners integrate it to present personalized
    Capital One card recommendations inside their own experiences. Like the rest of the DevExchange catalog it is OAuth 2.0
    secured, exercised in a sandbox, and gated behind partner approval for production. Documentation is HTML-only on the portal
    with no downloadable OpenAPI or Swagger definition available publicly.
- aid: capital-one:customer-transactions
  name: Capital One Customer Transactions
  tags:
  - Transactions
  - Banking
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/customer-transactions?id=3313-1
  properties:
  - url: https://developer.capitalone.com/products/customer-transactions?id=3313-1
    type: Documentation
  description: The Capital One Customer Transactions product exposes consumer-permissioned transaction data so approved partners
    can retrieve and reconcile a customer's Capital One transaction activity. It underpins personal finance, reconciliation,
    and account visibility use cases for partner integrations. Access is OAuth 2.0 secured through the DevExchange program,
    tested in the sandbox and promoted to production after partner review. The developer documentation is HTML-only; no publicly
    downloadable machine-readable specification is offered by Capital One.
- aid: capital-one:data-protection-and-client-authentication-public-key-sharing-api
  name: Capital One Data Protection and Client Authentication Public Key Sharing API
  tags:
  - Security
  - Authentication
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/data-protection-and-client-authentication-public-key-sharing?id=9721-1
  properties:
  - url: https://developer.capitalone.com/products/data-protection-and-client-authentication-public-key-sharing?id=9721-1
    type: Documentation
  description: The Capital One Data Protection and Client Authentication Public Key Sharing API lets integrating clients securely
    exchange public keys with Capital One to establish encrypted, authenticated communication for sensitive data in transit.
    It is a supporting security primitive for the broader DevExchange API catalog rather than a business-data endpoint. Access
    is OAuth 2.0 secured with sandbox testing and partner approval for production. Documentation is HTML-only on the DevExchange
    portal and no downloadable OpenAPI definition is published.
- aid: capital-one:digital-auto-financing-credit-application-api
  name: Capital One Digital Auto Financing Credit Application API
  tags:
  - Auto Finance
  - Lending
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/digital-auto-financing-credit-application?id=647907-1
  properties:
  - url: https://developer.capitalone.com/products/digital-auto-financing-credit-application?id=647907-1
    type: Documentation
  description: The Capital One Digital Auto Financing Credit Application API lets approved partners such as dealers and auto-marketplaces
    submit and process auto loan applications through Capital One's digital financing platform. It automates the credit application,
    verification, and approval flow so customers can be financed at the point of purchase. Access is OAuth 2.0 secured through
    DevExchange, tested in a sandbox and gated behind partner approval. Documentation is HTML-only on the portal; there is
    no publicly downloadable machine-readable specification.
- aid: capital-one:enhanced-decisioning-data-api
  name: Capital One Enhanced Decisioning Data API
  tags:
  - Decisioning
  - Risk
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/enhanced-decisioning-data?id=23343-1
  properties:
  - url: https://developer.capitalone.com/documentation/enhanced-decisioning-data
    type: Documentation
  description: The Capital One Enhanced Decisioning Data API gives approved partners access to data signals that support credit,
    risk, and fraud decisioning workflows. Partners use it to enrich underwriting and eligibility decisions with Capital One
    decisioning inputs in real time. Access is OAuth 2.0 secured through the DevExchange program, exercised in a sandbox and
    promoted to production after partner approval. The developer documentation is HTML-only on the DevExchange portal, and
    Capital One does not publish a downloadable OpenAPI or Swagger definition for the product.
- aid: capital-one:in-store-credit-card-payments-api
  name: Capital One In-Store Credit Card Payments API
  tags:
  - Payments
  - Point of Sale
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/in-store-credit-card-payments?id=10565-2
  properties:
  - url: https://developer.capitalone.com/products/in-store-credit-card-payments?id=10565-2
    type: Documentation
  description: The Capital One In-Store Credit Card Payments API lets merchants process Capital One credit card payments directly
    within their in-store point-of-sale flows. It supports accepting card payments, issuing receipts, and managing transactions
    from a merchant's POS integration. Access is OAuth 2.0 secured through DevExchange, tested in the sandbox and gated behind
    partner approval for production. Reference material is HTML documentation on the DevExchange portal; no publicly downloadable
    OpenAPI definition is provided by Capital One.
- aid: capital-one:pos-credit-card-application-api
  name: Capital One POS Credit Card Application API
  tags:
  - Credit Cards
  - Point of Sale
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/pos-credit-card-application?id=17912-1
  properties:
  - url: https://developer.capitalone.com/products/pos-credit-card-application?id=17912-1
    type: Documentation
  description: The Capital One POS Credit Card Application API lets merchants embed a Capital One credit card application
    directly into their point-of-sale checkout experience, so customers can apply and be decisioned at the counter. It reduces
    friction in acquiring cardholders at the moment of purchase. Access is OAuth 2.0 secured through the DevExchange program,
    exercised in a sandbox and promoted to production after partner approval. Documentation is HTML-only on the portal and
    no downloadable machine-readable specification is published.
- aid: capital-one:partner-account-summary-api
  name: Capital One Partner Account Summary API
  tags:
  - Accounts
  - Partners
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/partner-account-summary?id=18757-1
  properties:
  - url: https://developer.capitalone.com/products/partner-account-summary?id=18757-1
    type: Documentation
  description: The Capital One Partner Account Summary API provides approved partners consumer-permissioned access to account
    summary information such as balances, transaction history, and pending transactions in real time. Partners integrate it
    to keep customer-facing dashboards synchronized with Capital One account state. Access is OAuth 2.0 secured through DevExchange,
    tested in a sandbox and gated behind partner approval for production. The documentation is HTML-only on the DevExchange
    portal, with no downloadable OpenAPI definition available publicly.
- aid: capital-one:pre-application-orchestrator-api
  name: Capital One Pre-Application Orchestrator API
  tags:
  - Lending
  - Orchestration
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/pre-application-orchestrator?id=18728-1
  properties:
  - url: https://developer.capitalone.com/products/pre-application-orchestrator?id=18728-1
    type: Documentation
  description: The Capital One Pre-Application Orchestrator API coordinates the pre-application steps for financial products
    such as loans and credit cards, including gathering and validating customer information, checking credit inputs, and determining
    eligibility. It lets partners automate the front of the application funnel and reduce manual data entry. Access is OAuth
    2.0 secured through the DevExchange program, exercised in a sandbox and promoted to production after partner approval.
    Documentation is HTML-only on the portal with no downloadable specification published.
- aid: capital-one:real-time-proactive-prescreen-api
  name: Capital One Real-Time Proactive Prescreen API
  tags:
  - Credit
  - Prescreen
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/real-time-proactive-prescreen?id=320973-1
  properties:
  - url: https://developer.capitalone.com/products/real-time-proactive-prescreen?id=320973-1
    type: Documentation
  description: The Capital One Real-Time Proactive Prescreen API lets approved partners assess consumer creditworthiness in
    real time to support targeted, pre-screened credit offers. Partners use it to decide whether and which Capital One offers
    to present at the moment of interaction. Access is OAuth 2.0 secured through DevExchange, tested in the sandbox and gated
    behind partner approval for production. The reference material is HTML documentation on the DevExchange portal; Capital
    One does not publish a downloadable OpenAPI or Swagger definition for the product.
- aid: capital-one:retrieve-consumer-bank-products-api
  name: Capital One Retrieve Consumer Bank Products API
  tags:
  - Banking
  - Products
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/retrieve-consumer-bank-products?id=1359-5
  properties:
  - url: https://developer.capitalone.com/documentation/retrieve-consumer-bank-products
    type: Documentation
  description: The Capital One Retrieve Consumer Bank Products API lets approved partners access information about a consumer's
    Capital One banking products such as credit cards, checking accounts, and savings accounts, including balances, transaction
    history, and payment status. It supports consumer-permissioned product visibility inside partner experiences. Access is
    OAuth 2.0 secured through the DevExchange program, tested in a sandbox and promoted to production after partner approval.
    Documentation is HTML-only on the portal with no downloadable specification.
- aid: capital-one:shop-with-rewards-api
  name: Capital One Shop with Rewards API
  tags:
  - Rewards
  - Commerce
  - United States
  baseURL: https://api-sandbox.capitalone.com
  humanURL: https://developer.capitalone.com/products/shop-with-rewards?id=637511-1
  properties:
  - url: https://developer.capitalone.com/products/shop-with-rewards
    type: Documentation
  description: The Capital One Shop with Rewards API lets partners integrate Capital One credit card reward points and benefits
    into online shopping experiences, so cardholders can unlock deals and redeem accumulated rewards at participating retailers.
    It powers reward-driven commerce and checkout scenarios. Access is OAuth 2.0 secured through DevExchange, exercised in
    a sandbox and gated behind partner approval for production. The developer documentation is HTML-only on the DevExchange
    portal, and no publicly downloadable machine-readable specification is provided.
name: Capital One
tags:
- Auto Finance
- Authorizations
- Banking
- Credit Cards
- Credit Offers
- DevExchange
- Financial Services
- FDX
- Open Banking
- OAuth 2.0
- Payments
- Rewards
- United States
- Fortune 500
type: Index
kind: company
accessModel:
  pricing: unknown
  onboarding: partner-approval
  trial: false
  try_now: false
  public: false
  label: Partner-gated developer program
  confidence: medium
  source:
  - plans
  - authentication
  generated: '2026-07-23'
  method: derived
position: Consumer
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/capital-one.png
access: 3rd-Party
x-features:
- Public developer program (DevExchange) across consumer banking capabilities
- OAuth 2.0-based authentication and authorization
- Sandbox environment for pre-production testing
- Production access gated behind partner approval
- Public key sharing for client authentication and data protection
- Coverage across account lookup, authorizations, credit offers, and transactions
- Credit card application flows at point-of-sale and pre-application orchestration
- Real-time proactive prescreen and enhanced decisioning data
- Rewards and Shop with Rewards integration for merchants
- FDX member; consumer-permissioned data access also available via aggregators
x-use-cases:
- Partner and fintech integration with Capital One consumer banking
- Credit card application embedding at point-of-sale and online checkout
- Personalized credit offers and prescreen underwriting
- Reward-powered shopping and commerce experiences
- Auto financing application and approval flows
- Consumer-permissioned account summary for partner dashboards
- Real-time transaction authorization for merchants and fintechs
common:
- type: Website
  url: https://www.capitalone.com/
- type: DeveloperPortal
  url: https://developer.capitalone.com/
- type: Documentation
  url: https://developer.capitalone.com/documentation/getting-started
- type: GettingStarted
  url: https://developer.capitalone.com/documentation/getting-started
- type: OAuth20
  url: https://developer.capitalone.com/documentation/o-auth
- type: Sandbox
  url: https://developer.capitalone.com/documentation/sandbox
- type: FAQ
  url: https://developer.capitalone.com/help/faq
- type: Support
  url: https://developer.capitalone.com/help/tickets
- type: GitHubOrganization
  url: https://github.com/capitalone
- type: LinkedIn
  url: https://www.linkedin.com/company/capital-one
- type: Blog
  url: https://www.capitalone.com/tech/blog/
- type: TermsOfService
  url: https://www.capitalone.com/legal/terms-conditions/
- type: PrivacyPolicy
  url: https://www.capitalone.com/privacy/
- type: DomainSecurity
  url: security/capital-one-domain-security.yml
- type: SecurityTxt
  url: well-known/capital-one-security.txt
- type: WellKnown
  url: well-known/capital-one-well-known.yml
- type: VulnerabilityDisclosure
  url: security/capital-one-vulnerability-disclosure.yml
- type: Security
  url: https://www.capitalone.com/digital/responsible-disclosure/
- type: Authentication
  url: authentication/capital-one-authentication.yml
- type: Conformance
  url: conformance/capital-one-conformance.yml
- type: Conventions
  url: conventions/capital-one-conventions.yml
- type: LLMsTxt
  url: llms/capital-one-llms.txt
- type: Plans
  url: plans/capital-one-plans-pricing.yml
- type: RateLimits
  url: rate-limits/capital-one-rate-limits.yml
- type: FinOps
  url: finops/capital-one-finops.yml
created: '2024-11-15'
modified: '2026-07-23'
description: Capital One is a US money-center bank and financial services company offering credit cards, checking and savings
  accounts, loans, and auto financing. Through the Capital One DevExchange developer program the bank publishes a catalog
  of partner-facing production APIs for account lookup, transaction authorizations, credit offers, customer transactions,
  credit card applications, auto financing, proactive prescreen, partner account summary, shop with rewards, and public key
  sharing for client authentication. Access is secured with OAuth 2.0 and a public sandbox supports pre-production integration,
  with production access gated behind partner approval. Developer documentation is HTML-only (the portal is a single-page
  app); Capital One does not publish downloadable OpenAPI specifications. As an FDX member, Capital One also supports consumer-permissioned
  open-finance data access through aggregators in the US voluntary open-banking context.
maintainers:
- FN: Kin Lane
  email: info@apievangelist.com
specificationVersion: '0.19'