# Afinis Initiate Instant Payment API (IIP)

**Canonical:** https://apis.io/apis/nacha/nacha-initiate-instant-payment/  
**Provider:** Nacha — https://apis.io/providers/nacha/  
**Base URL:** https://api.asig.org/payments/v1  
**Documentation:** https://app.swaggerhub.com/apis/ASIG/Initiate_Instant_Payment_API/1.0.6

Afinis Initiate Instant Payment API (IIP) is one of 24 APIs that [Nacha](https://apis.io/providers/nacha/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. Tagged areas include Real-Time Payments, Instant Payments, and Payment Initiation. The published artifact set on APIs.io includes an OpenAPI specification, an API reference, and API documentation.

Afinis Initiate Instant Payment (IIP) API enabling a business to make an instant payment through its financial institution, mapping to US real-time rails (RTP and FedNow).

## Machine-readable artifacts (4)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nacha/refs/heads/main/openapi/nacha-initiate-instant-payment.json
- **APIReference** — https://app.swaggerhub.com/apis/ASIG/Initiate_Instant_Payment_API/1.0.6
- **Documentation** — https://www.nacha.org/content/apis-development
- **Overlay** — https://raw.githubusercontent.com/api-evangelist/nacha/refs/heads/main/overlays/nacha-initiate-instant-payment-overlay.yaml

## Other Nacha APIs (12)

- [Afinis Initiate ACH Payment API](https://apis.io/apis/nacha/nacha-initiate-payment/)
- [Afinis International ACH Remittance (IAR) API](https://apis.io/apis/nacha/nacha-iar/)
- [Afinis IAR Plus API](https://apis.io/apis/nacha/nacha-iar-plus/)
- [Afinis Transaction Status API](https://apis.io/apis/nacha/nacha-transaction-status/)
- [Afinis Initiate Wire Payment API](https://apis.io/apis/nacha/nacha-initiate-wire-payment/)
- [Afinis Get Wire Status API](https://apis.io/apis/nacha/nacha-get-wire-status/)
- [Afinis Instant Payment Transfer API (IPT)](https://apis.io/apis/nacha/nacha-instant-payment-transfer/)
- [Afinis Initiate Payment API](https://apis.io/apis/nacha/nacha-initiate-payment-api/)
- [Afinis Reporting ACH Return (RET) API](https://apis.io/apis/nacha/nacha-ret/)
- [Afinis Authorize to Pay (Debit Authorizations) API](https://apis.io/apis/nacha/nacha-authorize-to-pay/)
- [Afinis Pay Me API](https://apis.io/apis/nacha/nacha-pay-me/)
- [Afinis Account Validation API](https://apis.io/apis/nacha/nacha-account-validation/)

## Tags

Real-Time Payments, Instant Payments, Payment Initiation

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