# Citi Link Account API

**Canonical:** https://apis.io/apis/citi/citi-linkaccount-api/  
**Provider:** Citi — https://apis.io/providers/citi/  
**Base URL:** https://tts.apib2b.citi.com/citiconnect/prod  
**Documentation:** https://developer.citi.com/apidocs/authentication/authentication-only-guide

Citi Link Account API is one of 104 APIs that [Citi](https://apis.io/providers/citi/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include LinkAccount. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, an API reference, and authentication docs.

Account linkage operations for external payments

## Operations (2)

| Method | Path | Summary |
|---|---|---|
| POST | `/merchants/v1/link-accounts` | Link external account for payments |
| GET | `/merchants/v1/link-accounts` | Get linked account details |

## Machine-readable artifacts (31)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/openapi/citi-linkaccount-api-openapi.yml
- **Documentation** — https://developer.citi.com/apidocs/authentication/authentication-only-guide
- **APIReference** — https://developer.citi.com/apidocs/authentication/authentication-api-reference
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/authentication/citi-authentication.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/conventions/citi-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/errors/citi-problem-types.yml
- **Sandbox** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/sandbox/citi-sandbox.yml
- **Documentation** — https://developer.citi.com/apidocs/account-reporting/balances/balances-overview
- **APIReference** — https://developer.citi.com/apidocs/account-reporting/balances/balances-api-reference
- **Documentation** — https://developer.citi.com/apidocs/outgoing-payments/payments/payments-overview
- **APIReference** — https://developer.citi.com/apidocs/outgoing-payments/payments/payments-api-reference
- **Webhooks** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/asyncapi/citi-webhooks.yml
- **DeclineCodes** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/errors/citi-decline-codes.yml
- **Documentation** — https://developer.citi.com/apidocs/accept-payments/online-payment-acceptance/online-payment-acceptance-overview
- **APIReference** — https://developer.citi.com/apidocs/accept-payments/online-payment-acceptance/online-payment-acceptance-api-reference
- **Documentation** — https://developer.citi.com/apidocs/commercial-cards/virtual-cards/commercial-cards-overview
- **APIReference** — https://developer.citi.com/apidocs/commercial-cards/virtual-cards/virtual-cards-api-reference
- **Documentation** — https://developer.citi.com/apidocs/fx/gateway/citifx-gateway-overview
- **APIReference** — https://developer.citi.com/apidocs/fx/instant-fx/instant-fx-overview
- **Documentation** — https://developer.citi.com/apidocs/custody/accounts/accounts-overview
- **APIReference** — https://developer.citi.com/apidocs/custody/safekeeping-positions/safekeeping-positions-api-reference
- **Documentation** — https://developer.citi.com/apidocs/transfer-agency/accounts/accounts-overview
- **APIReference** — https://developer.citi.com/apidocs/transfer-agency/accounts/accounts-api-reference
- **Documentation** — https://developer.citi.com/apidocs/open-banking/ukraine-open-banking/ukraine-open-banking-overview
- **APIReference** — https://developer.citi.com/apidocs/open-banking/ukraine-open-banking/ukraine-bank-data-sharing-api-reference
- **Documentation** — https://developer.citi.com/apidocs/trade/standby-letters-of-credit/trade-overview
- **APIReference** — https://developer.citi.com/apidocs/trade/standby-letters-of-credit/trade-api-reference
- **Documentation** — https://developer.citi.com/apidocs/gateway-services/gateway-services-user-guide
- **APIReference** — https://developer.citi.com/apidocs/gateway-services/gateway-services-api-reference
- **Documentation** — https://developer.citi.com/apidocs/additional-payment-services/additional-payment-services/additional-payment-services-overview
- **APIReference** — https://developer.citi.com/apidocs/additional-payment-services/additional-payment-services/additional-payment-services-api-reference

## Other Citi APIs (12)

- [Citi Account Notification API](https://apis.io/apis/citi/citi-account-notification-api/)
- [Citi Accounts API](https://apis.io/apis/citi/citi-accounts-api/)
- [Citi Addonservices API](https://apis.io/apis/citi/citi-addonservices-api/)
- [Citi Authentication API](https://apis.io/apis/citi/citi-authentication-api/)
- [Citi Authenticationservices API](https://apis.io/apis/citi/citi-authenticationservices-api/)
- [Citi Authorization API](https://apis.io/apis/citi/citi-authorization-api/)
- [Citi Balance API](https://apis.io/apis/citi/citi-balance-api/)
- [Citi Bank Data Sharing API](https://apis.io/apis/citi/citi-bankdatasharing-api/)
- [Citi Beneficiary Validation API](https://apis.io/apis/citi/citi-beneficiary-validation-api/)
- [Citi Billing API](https://apis.io/apis/citi/citi-billing-api/)
- [Citi Blocks & Filters API](https://apis.io/apis/citi/citi-blocks-filters-api/)
- [Citi Branch API](https://apis.io/apis/citi/citi-branch-api/)

## Tags

LinkAccount

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/citi/citi-linkaccount-api/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/citi/.