Citigroup (Citi) is a global, diversified money-center financial services holding company headquartered in New York City, serving consumers, corporations, governments, and institutions across roughly 90 countries. Citi exposes public API access through two distinct, voluntary developer surfaces. The retail Citi Developer Hub (developer.citi.com, now consolidated into the Citi Partner Portal at partner.citi.com) was one of the earliest bank open-banking programs, launched in 2016, and documents seven core API product families: Accounts, Authorize, Customers, Money Movement, Utilities, Onboarding, and Pay with Points, secured with OAuth 2.0 authorization-code and consent flows against a developer sandbox. The corporate surface is CitiConnect, part of Treasury and Trade Solutions (TTS), which has processed more than one billion API calls since 2017 and exposes real-time payments, cross-border WorldLink FX, statements and reporting, request-to-pay, proof-of-payment, and account-balance APIs across the full TTS footprint, integrated through ERP and TMS systems with OAuth 2.0 and mutual TLS. As a US institution Citi participates in voluntary open finance rather than a single mandated contract: it is a co-owner of the Akoya data-access network and shares consumer-permissioned data under emerging FDX / CFPB Section 1033 norms. No public downloadable OpenAPI, Swagger, SDK, or Postman artifacts are published; documentation is HTML and partner-gated, so entries below are documented humanURL references without harvested machine-readable specs.
Citigroup publishes 11 APIs on the APIs.io network. Tagged areas include Banking, Financial Services, United States, Money Center Bank, and Open Banking.
The Citigroup catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.
Citigroup’s developer surface includes documentation, engineering blog, support, authentication, and 20 more developer resources.
The Citi Accounts and Transactions API provides authorized third-party access to retail customer accounts, current and available balances, and transaction histories, enabling ac...
The Citi Money Movement API enables authorized payment initiation from Citi retail accounts, including domestic ACH, wire, and internal book transfers, on behalf of a consenting...
The Citi Authorize API handles the OAuth 2.0 authorization-code and customer-consent flows required for third-party applications to gain scoped access to a customer's Citi accou...
The Citi Customers API provides authorized access to retail customer profile information, including contact details and demographic data, for use in onboarding, personalization,...
The Citi Onboarding API enables digital account opening, document submission, and KYC-driven origination workflows for onboarding new retail customers onto Citi products. It is ...
The Citi Pay with Points API enables Citi cardholders to redeem ThankYou points and other rewards balances for purchases at merchant checkouts and inside partner applications. I...
The Citi Utilities API provides supporting reference data such as foreign-exchange rates, branch and ATM locators, and cut-off times used to support transactional workflows acro...
CitiConnect is the corporate treasury and trade integration channel within Citi's Treasury and Trade Solutions (TTS) business, exposing APIs for real-time payment initiation, pa...
The CitiConnect WorldLink Payment Services API delivers cross-border, multi-currency payment capabilities within the CitiConnect suite, including FX rate enquiry, FX deal bookin...
The CitiConnect FX API provides real-time foreign-exchange information and execution for corporate treasury clients, supporting FX rate requests and the booking of FX contracts ...
The CitiConnect Statements and Reporting API delivers self-service reports, account statements, intraday and prior-day balance and transaction reporting, cut-off times, and proo...
aid: citigroup
kind: company
accessModel:
pricing: freemium
onboarding: unknown
trial: false
try_now: false
public: false
label: Freemium
confidence: medium
source:
- plans
generated: '2026-07-22'
method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/citigroup.png
name: Citigroup
url: https://raw.githubusercontent.com/api-evangelist/citigroup/refs/heads/main/apis.yml
created: '2026-03-23'
modified: '2026-07-23'
type: Index
access: 3rd-Party
position: Consumer
specificationVersion: '0.19'
tags:
- Banking
- Financial Services
- United States
- Money Center Bank
- Open Banking
- Open Finance
- Treasury and Trade Solutions
- CitiConnect
- Payments
- FX
- Corporate Banking
- Fortune 100
description: 'Citigroup (Citi) is a global, diversified money-center financial services holding company headquartered in New
York City, serving consumers, corporations, governments, and institutions across roughly 90 countries. Citi exposes public
API access through two distinct, voluntary developer surfaces. The retail Citi Developer Hub (developer.citi.com, now consolidated
into the Citi Partner Portal at partner.citi.com) was one of the earliest bank open-banking programs, launched in 2016,
and documents seven core API product families: Accounts, Authorize, Customers, Money Movement, Utilities, Onboarding, and
Pay with Points, secured with OAuth 2.0 authorization-code and consent flows against a developer sandbox. The corporate
surface is CitiConnect, part of Treasury and Trade Solutions (TTS), which has processed more than one billion API calls
since 2017 and exposes real-time payments, cross-border WorldLink FX, statements and reporting, request-to-pay, proof-of-payment,
and account-balance APIs across the full TTS footprint, integrated through ERP and TMS systems with OAuth 2.0 and mutual
TLS. As a US institution Citi participates in voluntary open finance rather than a single mandated contract: it is a co-owner
of the Akoya data-access network and shares consumer-permissioned data under emerging FDX / CFPB Section 1033 norms. No
public downloadable OpenAPI, Swagger, SDK, or Postman artifacts are published; documentation is HTML and partner-gated,
so entries below are documented humanURL references without harvested machine-readable specs.'
apis:
- aid: citigroup:citi-accounts-transactions-api
name: Citi Accounts and Transactions API
tags:
- Accounts
- Balances
- Banking
- Statements
- Transactions
- United States
- Retail Banking
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://partner.citi.com/products/open-banking
properties:
- url: https://partner.citi.com/products/open-banking
type: Documentation
- url: https://sandbox.developerhub.citi.com/api/united-states/retail-bank/accounts/accounts-and-transactions/documentation
type: SandboxDocumentation
description: The Citi Accounts and Transactions API provides authorized third-party access to retail customer accounts,
current and available balances, and transaction histories, enabling account-aggregation and personal financial management
use cases. It is part of the Citi Developer Hub retail open-banking catalog. Access is granted per-customer after an OAuth
2.0 authorization-code consent flow, with production traffic brokered through the Citi sandbox and partner onboarding
process. No public OpenAPI or Postman collection is published; documentation is HTML-only on the Citi Partner Portal.
- aid: citigroup:citi-money-movement-api
name: Citi Money Movement API
tags:
- ACH
- Money Movement
- Payment Initiation
- Payments
- Wire Transfer
- United States
- Retail Banking
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://partner.citi.com/products/open-banking
properties:
- url: https://partner.citi.com/products/open-banking
type: Documentation
- url: https://sandbox.developerhub.citi.com/api-catalog-list
type: APICatalog
description: The Citi Money Movement API enables authorized payment initiation from Citi retail accounts, including domestic
ACH, wire, and internal book transfers, on behalf of a consenting customer. It is one of the seven core products in the
Citi Developer Hub retail catalog. Authentication uses OAuth 2.0 with strong-customer-authentication consent flows, and
production access requires partner onboarding. Documentation is HTML-only; no downloadable OpenAPI, SDK, or Postman collection
is publicly available.
- aid: citigroup:citi-authorize-api
name: Citi Authorize API
tags:
- Authorization
- Consent
- OAuth
- SCA
- Identity
- United States
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://partner.citi.com/developers
properties:
- url: https://partner.citi.com/developers
type: Documentation
- url: https://developer.citi.com/
type: DeveloperPortal
description: The Citi Authorize API handles the OAuth 2.0 authorization-code and customer-consent flows required for third-party
applications to gain scoped access to a customer's Citi account data and to initiate payments. It is the security and
consent layer underpinning the rest of the Citi Developer Hub retail catalog, issuing the access and refresh tokens consumed
by the Accounts, Money Movement, and Customers APIs. Documentation is HTML-only on the Citi developer surface; no public
OpenAPI is published.
- aid: citigroup:citi-customers-api
name: Citi Customers API
tags:
- Customers
- Identity
- KYC
- Profiles
- United States
- Retail Banking
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://partner.citi.com/products/open-banking
properties:
- url: https://partner.citi.com/products/open-banking
type: Documentation
description: The Citi Customers API provides authorized access to retail customer profile information, including contact
details and demographic data, for use in onboarding, personalization, and Know-Your-Customer (KYC) workflows. It is part
of the Citi Developer Hub retail open-banking catalog and is gated behind OAuth 2.0 customer consent. Documentation is
HTML-only on the Citi Partner Portal; no machine-readable spec is published.
- aid: citigroup:citi-onboarding-api
name: Citi Onboarding API
tags:
- Account Opening
- Customer Onboarding
- KYC
- Origination
- United States
- Retail Banking
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://partner.citi.com/products/open-banking
properties:
- url: https://partner.citi.com/products/open-banking
type: Documentation
description: The Citi Onboarding API enables digital account opening, document submission, and KYC-driven origination workflows
for onboarding new retail customers onto Citi products. It is one of the seven core products in the Citi Developer Hub
retail catalog. Access uses OAuth 2.0 and requires partner onboarding for production use. Documentation is HTML-only;
no downloadable OpenAPI or SDK is publicly available.
- aid: citigroup:citi-pay-with-points-api
name: Citi Pay with Points API
tags:
- Loyalty
- Pay with Points
- Rewards
- ThankYou Points
- United States
- Cards
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://partner.citi.com/products/open-banking
properties:
- url: https://partner.citi.com/products/open-banking
type: Documentation
description: The Citi Pay with Points API enables Citi cardholders to redeem ThankYou points and other rewards balances
for purchases at merchant checkouts and inside partner applications. It is part of the Citi Developer Hub retail catalog
and is one of the earliest bank rewards APIs, powering embedded points-redemption partnerships. Access uses OAuth 2.0
customer consent; documentation is HTML-only with no public OpenAPI or Postman collection.
- aid: citigroup:citi-utilities-api
name: Citi Utilities API
tags:
- FX Rates
- Locator
- Reference Data
- Utilities
- United States
- Retail Banking
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://partner.citi.com/products/open-banking
properties:
- url: https://partner.citi.com/products/open-banking
type: Documentation
description: The Citi Utilities API provides supporting reference data such as foreign-exchange rates, branch and ATM locators,
and cut-off times used to support transactional workflows across Citi's retail and commercial offerings. It rounds out
the seven-product Citi Developer Hub retail catalog as the shared infrastructure and reference layer. Documentation is
HTML-only; no public machine-readable specification is published.
- aid: citigroup:citiconnect-api
name: CitiConnect API
tags:
- CitiConnect
- Corporate Banking
- ERP Integration
- Treasury and Trade Solutions
- TTS
- Real-Time Payments
- United States
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.citigroup.com/global/insights/citiconnect-api-portal
properties:
- url: https://www.citigroup.com/global/insights/citiconnect-api-portal
type: Documentation
- url: https://www.citigroup.com/global/businesses/services/treasury-and-trade-solutions
type: ProductPage
description: CitiConnect is the corporate treasury and trade integration channel within Citi's Treasury and Trade Solutions
(TTS) business, exposing APIs for real-time payment initiation, payment status reporting, request-to-pay, direct debits,
faster payments, and account-balance inquiry for enterprise clients connecting through ERP and TMS systems. Launched in
late 2017, CitiConnect APIs span the full TTS footprint of 90-plus countries and have processed more than one billion
API calls. Authentication uses OAuth 2.0 with mutual TLS. It offers complete API documentation and a functional sandbox
to onboarded corporate clients; no public downloadable OpenAPI is available.
- aid: citigroup:citiconnect-worldlink-api
name: CitiConnect WorldLink Payment Services API
tags:
- WorldLink
- Cross-Border Payments
- FX
- CitiConnect
- Treasury and Trade Solutions
- TTS
- United States
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.citigroup.com/global/insights/citiconnect-api-portal
properties:
- url: https://www.citigroup.com/global/insights/citiconnect-api-portal
type: Documentation
description: The CitiConnect WorldLink Payment Services API delivers cross-border, multi-currency payment capabilities within
the CitiConnect suite, including FX rate enquiry, FX deal booking, and cross-border payment initiation with 24x7 availability.
WorldLink lets corporate and institutional clients send payments in a wide range of currencies without maintaining local
currency accounts. It is part of Citi's Treasury and Trade Solutions API portfolio, secured with OAuth 2.0 and mutual
TLS, and documented in the CitiConnect developer sandbox. Documentation is partner-gated; no public OpenAPI is published.
- aid: citigroup:citiconnect-fx-api
name: CitiConnect FX (Real-Time FX) API
tags:
- FX
- Foreign Exchange
- CitiConnect
- Treasury and Trade Solutions
- TTS
- Real-Time FX
- United States
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.citigroup.com/global/insights/citiconnect-api-portal
properties:
- url: https://www.citigroup.com/global/insights/citiconnect-api-portal
type: Documentation
description: The CitiConnect FX API provides real-time foreign-exchange information and execution for corporate treasury
clients, supporting FX rate requests and the booking of FX contracts directly from ERP and TMS systems. It is one of the
most-used CitiConnect data services, enabling treasurers to embed live rates and deal booking into automated workflows
across the TTS footprint. Access uses OAuth 2.0 with mutual TLS; documentation and sandbox are provided to onboarded corporate
clients, with no public downloadable specification.
- aid: citigroup:citiconnect-statements-reporting-api
name: CitiConnect Statements and Reporting API
tags:
- Statements
- Reporting
- Proof of Payment
- CitiConnect
- Treasury and Trade Solutions
- TTS
- United States
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://www.citigroup.com/global/insights/citiconnect-api-portal
properties:
- url: https://www.citigroup.com/global/insights/citiconnect-api-portal
type: Documentation
description: The CitiConnect Statements and Reporting API delivers self-service reports, account statements, intraday and
prior-day balance and transaction reporting, cut-off times, and proof-of-payment confirmation for corporate treasury clients.
It is part of the CitiConnect data services within Citi's Treasury and Trade Solutions business, letting enterprises pull
reconciliation and reporting data programmatically into ERP and TMS systems. Authentication uses OAuth 2.0 with mutual
TLS; documentation is partner-gated with no public OpenAPI available.
common:
- type: Website
url: https://www.citigroup.com
- type: DeveloperPortal
url: https://developer.citi.com/
- type: PartnerPortal
url: https://partner.citi.com/
- type: Documentation
url: https://partner.citi.com/developers
- type: APICatalog
url: https://sandbox.developerhub.citi.com/api-catalog-list
- type: CitiConnect
url: https://www.citigroup.com/global/insights/citiconnect-api-portal
- type: GitHubOrganization
url: https://github.com/citi
- type: LinkedIn
url: https://www.linkedin.com/company/citigroup
- type: Blog
url: https://www.citigroup.com/global/news
- type: InvestorRelations
url: https://www.citigroup.com/global/investors
- type: TermsOfService
url: https://online.citi.com/US/JRS/pands/detail.do?ID=Terms
- type: PrivacyPolicy
url: https://online.citi.com/US/JRS/pands/detail.do?ID=PrivacyTerms
- type: Support
url: https://online.citi.com/US/contactus.htm
- type: DomainSecurity
url: security/citigroup-domain-security.yml
- type: Plans
url: plans/citigroup-plans-pricing.yml
- type: RateLimits
url: rate-limits/citigroup-rate-limits.yml
- type: FinOps
url: finops/citigroup-finops.yml
- type: JSONLD
url: json-ld/citigroup-context.jsonld
- type: Spectral
url: rules/citigroup-rules.yml
- type: Authentication
url: authentication/citigroup-authentication.yml
- type: Conformance
url: conformance/citigroup-conformance.yml
- type: Lifecycle
url: lifecycle/citigroup-lifecycle.yml
- type: Conventions
url: conventions/citigroup-conventions.yml
- type: LLMsTxt
url: llms/citigroup-llms.txt
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
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