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Citi

Citi Open Banking APIs

Regulated open banking surfaces: Ukraine bank data sharing, Ukraine OAuth2 authentication and payment service initiation, and European commercial card account balance and statement transaction inquiry. Citi publishes 3 machine-readable specifications for this family covering 11 operations, served from developer.citi.com.

Documentation Provider Profile APIs.io OpenAPI GitHub

This API exposes 6 operations across 5 paths, organized into 2 resource areas, and defines 37 schemas. It is described by OpenAPI 3.0.2, at version 1.0.0.

Requests are made against 2 base URLs: https://b2b.tts.icgservices.citi.com/citiconnect/openbanking/ukr/accountconsentservices/v1, https://sanbox.tts.icgservices.citi.com/citiconnect/openbanking/ukr/accountconsentservices/v1.

6 operations 5 paths 37 schemas 1 DELETE4 GET1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.2
API Version
1.0.0
Base URL
https://b2b.tts.icgservices.citi.com/citiconnect/openbanking/ukr/accountconsentservices/v1
Authentication
OAuth 2.0, OAuth 2.0
Contact
Citi API Support
Resource Areas
2

Authentication & Security 2

Citi Open Banking APIs declares 2 security schemes for authenticating requests. It supports OAuth 2.0 (oAuth) using the clientCredentials flow, exposing 1 scope. It supports OAuth 2.0 (auth) using the clientCredentials flow, exposing 1 scope. By default, every request must be authenticated.

Paths & Operations 6

Across 5 paths, the API surfaces 6 operations — 1 DELETE, 4 GET, 1 POST. They span 2 resource areas: ConsentManagement, BankDataSharing. Each is listed below with its method, path, parameters, and response codes.

ConsentManagement 3

API services to create, retrieve, and delete account information consent.

POST
/account-consent
accountInformationConsent
accountInformationConsent 5 params body → 201400401403404405409415
GET
/account-consent/{consentId}
accountInformationConsentInquiry
accountInformationConsentInquiry 6 params → 200400401403404405409415
DELETE
/account-consent/{consentId}
accountInformationConsentDeletion
accountInformationConsentDeletion 6 params → 204400401403404405409415
BankDataSharing 3

API services to provide accounts, balances and transactions details.

GET
/accounts
Account Details
getAccountsByClientId 10 params → 200400401403404405409415
GET
/balances
Account Balances
getBalancesByClientId 14 params → 200400401403404405409415
GET
/transactions
Transactions Details by Account ID
getTransactionByAccountId 16 params → 200400401403404405409415

Schemas 37

The contract defines 37 schemas that model the data the API accepts and returns. The most detailed are Transaction-Details (30 properties), Balance (25 properties), Account-Details (14 properties), Account (9 properties). Each schema is shown below with its type and property counts.

Service-Error-Response
object
Error payload returned when the backend service cannot process a validly routed TPP request.
2 properties 1 required
Error-Detail
object
Detailed issue information for a service error, including reason, remediation, and code.
3 properties
Gateway-Error-Response
object
This refers to an issue encountered by an API Gateway handling the request.
3 properties 1 required
Common-Error-Response
Wrapper schema for responses that may return either gateway or service error payloads.
Accounts-Information
object
Response containing account-level information returned to the TPP based on the requested filters.
2 properties
Account-Details
object
Detailed attributes of a single account included in the accounts response.
14 properties 1 required
Balance-Information
object
Response containing balance information returned to the TPP for one or more accounts.
2 properties
Account
object
Account context and associated balance records within the balances response.
9 properties 1 required
Balance
object
Balance metrics for a specific account as returned by the balances endpoint.
25 properties 5 required
Overdraft-Details
object
Overdraft-related values associated with the reported account balance.
1 property
Consent-Id
string
Unique identifier of the account information consent used to authorize TPP data access.
Account-Ref
string
This parameter is required for GET Transactions and optional for GET Accounts and GET Balances. Unique reference assigned to an account; when omitted (where op…
Account-Number
string
Account number of Citi's corporate client account. - For GET Account, this parameter is required. - For GET Balance, this parameter is required. - For GET Tran…
Currency-Code
string
Three-letter currency code defined by ISO 4217. - For GET Account, this parameter is required. - For GET Balance, this parameter is required. - For GET Transac…
Account-Name
string
Name or title assigned to the account. - For GET Account, this parameter is optional. - For GET Balance, this parameter is optional. - For GET Transaction, thi…
Account-Type
string
Classification of the financial account. - For GET Account, this parameter is optional. - For GET Balance, this parameter is optional. - For GET Transaction, t…
Branch-Code
string
Unique code identifying the servicing branch location. - For GET Account, this parameter is optional. - For GET Balance, this parameter is optional. - For GET…
Legal-Entity
string
Legal entity name associated with the account (individual, corporate, or institution). - For GET Account, this parameter is optional. - For GET Balance, this p…
Branch-Name
string
Name of the branch or local bank location servicing the account. For GET Account, this parameter is optional. - For GET Balance, this parameter is optional. -…
Iban-Account-Number
string
International Bank Account Number (IBAN) used to identify the account in cross-border and domestic contexts where applicable. - For GET Account, this parameter…
Account-Category
string
Account category value describing the account class (for example, debit/credit category representations). - For GET Account, this parameter is optional. - For…
Status
string
Current lifecycle status of the account (for example, Open or Closed). - For GET Account, this parameter is required. - For GET Balance, this parameter is not…
Account-Opening-Date
string
Date and time when the account was originally opened. - For GET Account, this parameter is optional. - For GET Balance, this parameter is not required. For GET…
Country-Code
string
ISO country code for the jurisdiction of the branch or account location. - For GET Account, this parameter is required. - For GET Balance, this parameter is no…
Bank-Rte-Id
string
Routing identifier for the servicing bank or branch. - For GET Account, this parameter is optional. - For GET Balance, this parameter is not required. - For GE…
Transaction-Information
object
Response containing transaction data returned to the TPP based on the requested filters.
2 properties
Accounts-Info
object
Account identification and context details associated with the returned transactions.
6 properties 1 required
Transaction-Details
object
Detailed transaction record for an account entry returned by the transactions endpoint.
30 properties 3 required
AccountInformationConsentRequest
object
Payload used by the TPP to create an account information consent request.
2 properties 2 required
AccountInformationConsent
object
Consent resource returned after consent creation, including status, SCA, and permission details.
3 properties 3 required
GetAccountInformationConsent
object
Consent resource returned by consent inquiry for the provided consent identifier.
3 properties 3 required
Sca
object
Strong Customer Authentication parameters used to complete PSU authorization for consent.
3 properties
ScaResponse
Strong Customer Authentication information returned in API responses.
PermissionInformation
object
Permission scope and validity window granted through the account information consent.
4 properties 2 required
ConsentInformationCommon
object
Common metadata describing the lifecycle and status of a consent resource.
4 properties 4 required
GetConsentInformation
Consent metadata for inquiry responses, including optional cancellation detail.
4 required
AccountInformation
object
Container for account access permissions requested or granted under the consent.
1 property 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

citi-ukraine-bank-data-sharing-api-openapi.yaml Raw ↑
#Open Banking#PSD2#Banking
← Back to C APIs
API Details
ID
citi:citi-open-banking-apis
Base URL
https://b2b.tts.icgservices.citi.com/citiconnect/openbanking/ukr/accountconsentservices/v1
Docs
https://developer.citi.com/apidocs/open-banking/ukraine-open-banking/ukraine-open-banking-overview
Provider
Citi
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