# NMI Merchants API

**Canonical:** https://apis.io/apis/nmi/nmi-merchants-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 Merchants 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 Merchants. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and 18 JSON Schemas.

The Merchants API from NMI — 4 operation(s) for merchants.

## Operations (5)

| Method | Path | Summary |
|---|---|---|
| POST | `/v4/merchants` | Create Merchant |
| POST | `/v4/merchants/reports` | Get Merchant List |
| PATCH | `/v4/merchants/{gateway_id}` | Assign Fee Schedule to Merchant / Complete and Send Welcome Email / Agree to… |
| GET | `/v4/merchants/{gateway_id}` | Get a Specific Merchant's Information |
| POST | `/v4/merchants/{gateway_id}/security_keys` | Create Merchant API Keys |

## Machine-readable artifacts (21)

- **OpenAPI** — https://raw.githubusercontent.com/api-evangelist/nmi/refs/heads/main/openapi/nmi-merchants-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

Merchants

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