# NMI Webhook Subscriptions API

**Canonical:** https://apis.io/apis/nmi/nmi-webhook-subscriptions-api/  
**Provider:** NMI — https://apis.io/providers/nmi/  
**Base URL:** https://secure.networkmerchants.com  
**Documentation:** https://secure.networkmerchants.com/gw/merchants/resources/integration/integration_portal.php

NMI Webhook Subscriptions 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 18 JSON Schema definitions. Tagged areas include Webhook Subscriptions. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 18 JSON Schemas.

Manage Webhook Subscriptions

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| GET | `/subscriptions` | List all Subscriptions |
| POST | `/subscriptions` | Create a Subscription |
| GET | `/subscriptions/{subscription}` | Get Subscription Information |
| PATCH | `/subscriptions/{subscription}` | Update a Subscription |
| DELETE | `/subscriptions/{subscription}` | Delete a Subscription |

## Machine-readable artifacts (21)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/openapi/nmi-webhook-subscriptions-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-conversation-amount-input-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-conversation-expiration-date-input-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-conversation-instructions-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-nmi-record-id-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-conversation-id-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-conversation-customer-phone-with-dashes-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-response-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-credit-card-payment-in-full-partial-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-credit-card-sale-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-achcredit-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-achsale-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-credit-card-capture-request-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-package-fields-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-application-document-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-package-collection-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-full-application-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-subscription-schema.json
- **JSONSchema** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/json-schema/nmi-pagination-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 Webhook Events API](https://apis.io/apis/nmi/nmi-payments-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/)

## Tags

Webhook Subscriptions

---

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