# NMI Webhook Events API

**Canonical:** https://apis.io/apis/nmi/nmi-payments-api/  
**Provider:** NMI — https://apis.io/providers/nmi/  
**Base URL:** https://secure.networkmerchants.com  
**Documentation:** https://docs.nmi.com/reference/getting-started

NMI Webhook Events API is one of 28 APIs that [NMI](https://apis.io/providers/nmi/) publishes on the [APIs.io](https://apis.io/) network, described by a machine-readable OpenAPI specification. This API exposes 6 JSON Schema definitions. Tagged areas include Webhook Events. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 6 JSON Schemas.

Here you can find information about webhook events

## Operations (8)

| Method | Path | Summary |
|---|---|---|
| POST | `/v5/payments/auth` | Authorization |
| POST | `/v5/payments/credit` | Credit |
| POST | `/v5/payments/sale` | Sale |
| POST | `/v5/payments/validate` | Validate |
| GET | `/v5/payments/{payment_id}` | Get |
| POST | `/v5/payments/{payment_id}/capture` | Capture |
| POST | `/v5/payments/{payment_id}/refund` | Refund |
| POST | `/v5/payments/{payment_id}/void` | Void |

## Machine-readable artifacts (9)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/openapi/nmi-payments-api-openapi.yml
- **Documentation** — https://docs.nmi.com/docs
- **Sandbox** — https://docs.nmi.com/docs/sandbox-testing
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-get-transaction-data-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-get-merchant-list-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-assign-fee-schedule-to-merchant-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-create-merchant-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-get-specific-merchant-information-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-get-merchant-processors-and-value-added-services-details-response-schema.json

## Other NMI APIs (12)

- [NMI Three Step Redirect API](https://apis.io/apis/nmi/nmi-three-step-redirect-api/)
- [NMI Customer-Present Cloud API](https://apis.io/apis/nmi/nmi-customer-present-cloud-api/)
- [NMI Affiliates API](https://apis.io/apis/nmi/nmi-affiliates-api/)
- [NMI Apple Pay API](https://apis.io/apis/nmi/nmi-apple-pay-api/)
- [NMI Applications API](https://apis.io/apis/nmi/nmi-applications-api/)
- [NMI Authentication API](https://apis.io/apis/nmi/nmi-authentication-api/)
- [NMI Authvia TXT2PAY API](https://apis.io/apis/nmi/nmi-authvia-txt2pay-api/)
- [NMI Billing & Commission API](https://apis.io/apis/nmi/nmi-billing-commission-api/)
- [NMI Component Sessions API](https://apis.io/apis/nmi/nmi-component-sessions-api/)
- [NMI Customers API](https://apis.io/apis/nmi/nmi-customers-api/)
- [NMI Data and Transaction Reporting API](https://apis.io/apis/nmi/nmi-data-and-transaction-reporting-api/)
- [NMI Devices API](https://apis.io/apis/nmi/nmi-devices-api/)

## Tags

Webhook Events

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