# Citi Additional Payment Services APIs

**Canonical:** https://apis.io/apis/citi/citi-additional-payment-services-apis/  
**Provider:** Citi — https://apis.io/providers/citi/  
**Base URL:** https://tts.apib2b.citi.com/citiconnect/prod/selfservices/v1  
**Documentation:** https://developer.citi.com/apidocs/additional-payment-services/additional-payment-services/additional-payment-services-overview

Citi Additional Payment Services APIs is one of 12 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 Payments and Validation. The published artifact set on APIs.io includes API documentation, an API reference, an OpenAPI specification, and authentication docs.

Payment-adjacent services: beneficiary account validation and search, entity whitelisting, self-service integration operations, and Request to Pay. Citi publishes 4 machine-readable specifications for this family covering 24 operations, served from developer.citi.com.

## Operations (13)

| Method | Path | Summary |
|---|---|---|
| GET | `/transaction/historyreport` | Transaction Reports |
| POST | `/transaction/historyreport` | Transaction Reports |
| GET | `/proofofpayment/{EndToEndId}` | Proof of Payment Inquiry |
| POST | `/payment/banksearch` | Bank Listing |
| GET | `/accounts/amountavailability` | Payment Amount Availability |
| POST | `/document/upload` | Document Upload |
| GET | `/ipscheme/eligibilitycheck` | Instant Payment Scheme Eligibility Check |
| POST | `/proxylookup` | Proxy Lookup |
| GET | `/branch/holiday` | Branch Holiday |
| POST | `/branch/holiday` | Branch Holiday |
| GET | `/citiconnect/prod/selfservices/v1/payment/cutoff` | Payment Cut-Off Time Inquiry |
| POST | `/citiconnect/prod/selfservices/v1/payment/cutoff` | Payment Cut-Off Time Inquiry |
| GET | `/citiconnect/prod/selfservices/v3/payment/beneficiarysearch` | Payment Beneficiary Search |

## Machine-readable artifacts (11)

- **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
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/openapi/citi-self-service-api-openapi.yaml
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/openapi/citi-request-to-pay-openapi.yaml
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/openapi/citi-entityid-openapi.yaml
- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/openapi/citi-beneficiary-search-openapi.yaml
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/citi/refs/heads/main/overlays/citi-additional-payment-services-overlay.yaml
- **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

## Other Citi APIs (11)

- [Citi API Authentication Services](https://apis.io/apis/citi/citi-api-authentication-services/)
- [Citi Account Reporting APIs](https://apis.io/apis/citi/citi-account-reporting-apis/)
- [Citi Outgoing Payments APIs](https://apis.io/apis/citi/citi-outgoing-payments-apis/)
- [Citi Payment Acceptance APIs](https://apis.io/apis/citi/citi-payment-acceptance-apis/)
- [Citi Commercial Cards and Virtual Card Accounts APIs](https://apis.io/apis/citi/citi-commercial-cards-and-virtual-card-accounts-apis/)
- [CitiFX Gateway and Instant FX APIs](https://apis.io/apis/citi/citifx-gateway-and-instant-fx-apis/)
- [Citi Custody and Securities Services APIs](https://apis.io/apis/citi/citi-custody-and-securities-services-apis/)
- [Citi Funds Transfer Agency APIs](https://apis.io/apis/citi/citi-funds-transfer-agency-apis/)
- [Citi Open Banking APIs](https://apis.io/apis/citi/citi-open-banking-apis/)
- [CitiConnect Trade Services APIs](https://apis.io/apis/citi/citiconnect-trade-services-apis/)
- [Citi Gateway Services API](https://apis.io/apis/citi/citi-gateway-services-api/)

## Tags

Payments, Validation

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