Diebold Nixdorf is a global provider of connected commerce technology for the financial and retail industries — ATMs and self-service terminals, retail point-of-sale hardware, the Vynamic software portfolio (Payments, Transaction Middleware, Self-Service, Security, Retail Platform) and the managed services around them. Its integration surface is enterprise and customer-deployed rather than self-serve: eight public OpenAPI definitions for the Vynamic banking stack are published through the company's SwaggerHub organization, while the Vynamic Retail Platform developer portal sits behind a login and the former developer community no longer resolves. There is no public signup, pricing page or published rate limit, and every specification names a customer-hosted server.
Diebold Nixdorf publishes 8 APIs on the APIs.io network, including DN Open Backend API, DN Online & Mobile API, DN Assist API, and 5 more. Tagged areas include Banking, Retail, ATM, Self-Service, and Point-of-Sale.
The Diebold Nixdorf catalog on APIs.io includes 1 event-driven AsyncAPI specification.
Diebold Nixdorf’s developer surface includes authentication, support, sandbox, documentation, API reference, and 23 more developer resources.
Regulatory Posture applies to this provider. Its tags matched the
Banking & Open Finance regime, so
Regulatory Posture carries 15 points of the composite.
If this regime is wrong for your business, say so on your
provider repo — the
applicability map is public and we will correct it.
Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it
carries 10 points of the composite. It is scored from the published contracts
themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already
holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in
front of it, and the first time that check is skipped a duplicate record is created.
Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet,
not penalised by it.
The six quality facets above are damped to 75 points between them,
because the conditional facet above carries the other
25. That is why each facet's contribution is shown against a damped
maximum: raising a quality facet moves the composite by 75% of its nominal
weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/diebold: open an issue to ask a question, or submit a pull request to add artifacts.
Submit an artifact on GitHub — free →Manage your own listing — the Influence plan, $499/mo →
Public REST API of Diebold Nixdorf for banking core system integration — authentication, account information, consumer information and account processing operations used by Vyna...
Diebold Nixdorf Online & Mobile API — the Vynamic Transaction Middleware surface used by online and mobile banking channels for cardless and mobile-initiated self-service transa...
Diebold Nixdorf API for SelfService Assistance — remote assistance, session and device interaction operations against self-service terminals. 23 paths with basic, bearer and JWE...
Public Payment Initiation API (PI-API) of Diebold Nixdorf providing access to the Vynamic Transaction Middleware for initiating payments. Declares an OpenID Connect scheme again...
Public TM Authorization API of Diebold Nixdorf used to obtain and manage access tokens for the Vynamic Transaction Middleware. 8 paths with HTTP basic and bearer schemes; OpenAP...
Public API of Diebold Nixdorf for account balance management, exposing balance and account business-component operations to the Vynamic banking stack. 5 paths; OpenAPI 3.0.1, ve...
Diebold Nixdorf API for invoking predefined, configurable business process flows with a single request (formerly the Pledge API), authorized through an external OpenID Connect p...
Outbound Diebold Nixdorf API used to inform card issuers of services requested by, or on behalf of, their account holders, so issuers can guide the account holder experience thr...
aid: diebold
url: https://raw.githubusercontent.com/api-evangelist/diebold/refs/heads/main/apis.yml
name: Diebold Nixdorf
description: 'Diebold Nixdorf is a global provider of connected commerce technology for the financial and retail industries
— ATMs and self-service terminals, retail point-of-sale hardware, the Vynamic software portfolio (Payments, Transaction
Middleware, Self-Service, Security, Retail Platform) and the managed services around them. Its integration surface is enterprise
and customer-deployed rather than self-serve: eight public OpenAPI definitions for the Vynamic banking stack are published
through the company''s SwaggerHub organization, while the Vynamic Retail Platform developer portal sits behind a login and
the former developer community no longer resolves. There is no public signup, pricing page or published rate limit, and
every specification names a customer-hosted server.'
deliveryModel:
model: self-hosted
open_source: false
commercial: true
callable_host: false
label: Customer-deployed · you run their software in your own environment
confidence: high
source:
- openapi
- pricing
- documentation
generated: '2026-09-06'
method: derived
note: All eight published OpenAPI definitions name localhost:8080 in servers[]. Vynamic Transaction Middleware is licensed
software installed in the financial institution's environment; there is no multi-tenant Diebold Nixdorf endpoint to call.
accessModel:
pricing: enterprise
onboarding: sales
trial: false
try_now: false
public: false
label: Enterprise licence, sales-gated
confidence: high
source:
- pricing
- authentication
- documentation
generated: '2026-09-06'
method: derived
note: No pricing page, no developer signup and no sandbox. Every product page routes to the "Let's Connect" contact form;
the specifications are readable in the SwaggerHub registry but the credentials and the deployment come from a customer
or partner agreement.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
type: Index
position: Producing
access: 3rd-Party
tags:
- Banking
- Retail
- ATM
- Self-Service
- Point-of-Sale
- Payments
- Transaction Middleware
- Vynamic
- Open Banking
- Fortune 1000
tags_raw:
- Banking
- Retail
- ATM
- Self-Service
- Point of Sale
- Payments
- Transaction Middleware
- Vynamic
- Open Banking
- Fortune 1000
created: '2026-03-24'
modified: '2026-09-06'
specificationVersion: '0.23'
apis:
- name: DN Open Backend API
description: Public REST API of Diebold Nixdorf for banking core system integration — authentication, account information,
consumer information and account processing operations used by Vynamic Transaction Middleware to connect self-service
channels to a bank core. 62 paths across four tag groups; OpenAPI 3.0.1, version 4.3.0.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn-open_backend_api/4.3.0
baseURL: https://{customer-host}:8080/OB-API-REST/v2
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Core Banking
- Open API
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- core-banking
- open-api
properties:
- type: OpenAPI
url: openapi/diebold-dn-open-backend-api-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn-open_backend_api/4.3.0
- type: Overlay
url: overlays/diebold-dn-open-backend-api-overlay.yaml
x-version: 4.3.0
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: Not published. The specification names http(s)://localhost:8080/OB-API-REST/v2 — a customer-deployment placeholder,
not a host. The real base is <the financial institution's Vynamic Transaction Middleware host>/OB-API-REST/v2. No baseURL
is recorded here rather than guessing one.
- name: DN Online & Mobile API
description: Diebold Nixdorf Online & Mobile API — the Vynamic Transaction Middleware surface used by online and mobile
banking channels for cardless and mobile-initiated self-service transactions. 35 paths, bearer/OpenID Connect authentication;
OpenAPI 3.0.3, version 3.2.1.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn_online_mobile_api/3.2.1
baseURL: https://{customer-host}:8080/tm-om-api/v4
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Mobile Banking
- Digital Banking
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- mobile-banking
- digital-banking
properties:
- type: OpenAPI
url: openapi/diebold-dn-online-mobile-api-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn_online_mobile_api/3.2.1
- type: Overlay
url: overlays/diebold-dn-online-mobile-api-overlay.yaml
x-version: 3.2.1
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: Not published. The specification names http(s)://localhost:8080/tm-om-api/v4 — a customer-deployment placeholder,
not a host. The real base is <the financial institution's Vynamic Transaction Middleware host>/tm-om-api/v4. No baseURL
is recorded here rather than guessing one.
- name: DN Assist API
description: Diebold Nixdorf API for SelfService Assistance — remote assistance, session and device interaction operations
against self-service terminals. 23 paths with basic, bearer and JWE-bearer authentication; OpenAPI 3.0.1, version 1.0.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn-assist_api/1.0
baseURL: https://{customer-host}:8080/tm-assist-api/v1
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Remote Assistance
- Kiosk
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- remote-assistance
- kiosk
properties:
- type: OpenAPI
url: openapi/diebold-dn-assist-api-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn-assist_api/1.0
- type: Overlay
url: overlays/diebold-dn-assist-api-overlay.yaml
x-version: '1.0'
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: Not published. The specification names http(s)://localhost:8080/tm-assist-api/v1 — a customer-deployment placeholder,
not a host. The real base is <the financial institution's Vynamic Transaction Middleware host>/tm-assist-api/v1. No baseURL
is recorded here rather than guessing one.
- name: DN Payment Initiation API
description: Public Payment Initiation API (PI-API) of Diebold Nixdorf providing access to the Vynamic Transaction Middleware
for initiating payments. Declares an OpenID Connect scheme against a Microsoft Entra ID tenant. 11 paths; OpenAPI 3.0.1,
version 1.9.11.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn_payment_initiation_api/1.9.11
baseURL: https://{customer-host}:8080/pi-api/v1
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Payment Initiation
- Open Banking
- OpenID Connect
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- payment-initiation
- open-banking
- openid-connect
properties:
- type: OpenAPI
url: openapi/diebold-dn-payment-initiation-api-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn_payment_initiation_api/1.9.11
- type: Overlay
url: overlays/diebold-dn-payment-initiation-api-overlay.yaml
- type: DeclineCodes
url: errors/diebold-decline-codes.yml
x-version: 1.9.11
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: Not published. The specification names http(s)://localhost:8080/pi-api/v1 — a customer-deployment placeholder,
not a host. The real base is <the financial institution's Vynamic Transaction Middleware host>/pi-api/v1. No baseURL is
recorded here rather than guessing one.
- name: DN TM Authorization API
description: Public TM Authorization API of Diebold Nixdorf used to obtain and manage access tokens for the Vynamic Transaction
Middleware. 8 paths with HTTP basic and bearer schemes; OpenAPI 3.0.3, version 1.8.1.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/DN-TM-Authorization-API/1.8.1
baseURL: https://{customer-host}:8080/oauth-api/v1
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Authorization
- OAuth
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- authorization
- oauth
properties:
- type: OpenAPI
url: openapi/diebold-dn-tm-authorization-api-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/DN-TM-Authorization-API/1.8.1
- type: Overlay
url: overlays/diebold-dn-tm-authorization-api-overlay.yaml
x-version: 1.8.1
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: Not published. The specification names http(s)://localhost:8080/oauth-api/v1 — a customer-deployment placeholder,
not a host. The real base is <the financial institution's Vynamic Transaction Middleware host>/oauth-api/v1. No baseURL
is recorded here rather than guessing one.
- name: DN Account BC API
description: Public API of Diebold Nixdorf for account balance management, exposing balance and account business-component
operations to the Vynamic banking stack. 5 paths; OpenAPI 3.0.1, version 1.0.0.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn-account_api/1.0.0
baseURL: https://{customer-host}:8080/account/v1
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Account Balance
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- account-balance
properties:
- type: OpenAPI
url: openapi/diebold-dn-account-bc-api-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn-account_api/1.0.0
- type: Overlay
url: overlays/diebold-dn-account-bc-api-overlay.yaml
x-version: 1.0.0
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: Not published. The specification names http(s)://localhost:8080/account/v1 — a customer-deployment placeholder,
not a host. The real base is <the financial institution's Vynamic Transaction Middleware host>/account/v1. No baseURL
is recorded here rather than guessing one.
- name: DN Secure Business Processing API
description: Diebold Nixdorf API for invoking predefined, configurable business process flows with a single request (formerly
the Pledge API), authorized through an external OpenID Connect provider configured in the OCM configuration. 2 paths;
OpenAPI 3.0.3, version 3.1.0.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn_pledge_api/3.1.0
baseURL: https://{customer-host}:8080/tm-sbp-api/v1
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Business Process
- OpenID Connect
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- business-process
- openid-connect
properties:
- type: OpenAPI
url: openapi/diebold-dn-secure-business-processing-api-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/dn_pledge_api/3.1.0
- type: Overlay
url: overlays/diebold-dn-secure-business-processing-api-overlay.yaml
x-version: 3.1.0
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: Not published. The specification names http(s)://localhost:8080/tm-sbp-api/v1 — a customer-deployment placeholder,
not a host. The real base is <the financial institution's Vynamic Transaction Middleware host>/tm-sbp-api/v1. No baseURL
is recorded here rather than guessing one.
- name: TM Pre-Digitization API (Outbound)
description: Outbound Diebold Nixdorf API used to inform card issuers of services requested by, or on behalf of, their account
holders, so issuers can guide the account holder experience through the token requestor. 3 paths; OpenAPI 3.0.1, version
1.0.0.
humanURL: https://api.swaggerhub.com/apis/Diebold-Nixdorf/tm-pre-digitization-api-outbound/1.0.0
baseURL: https://{issuer-host}
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/diebold.png
tags:
- Banking
- Payments
- ATM
- Self-Service
- Transaction Middleware
- Vynamic
- Tokenization
- Card Issuing
tags_raw:
- banking
- payments
- atm
- self-service
- transaction-middleware
- vynamic
- tokenization
- card-issuing
properties:
- type: OpenAPI
url: openapi/diebold-tm-pre-digitization-api-outbound-openapi.yml
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf/tm-pre-digitization-api-outbound/1.0.0
- type: Overlay
url: overlays/diebold-tm-pre-digitization-api-outbound-overlay.yaml
- type: Webhooks
url: asyncapi/diebold-webhooks.yml
x-version: 1.0.0
x-source: 'SwaggerHub registry, owner Diebold-Nixdorf (public, unauthenticated): https://api.swaggerhub.com/apis/Diebold-Nixdorf'
x-deployment: customer-deployed / on-premise — the published servers[] block names localhost:8080 because Vynamic Transaction
Middleware is installed in the financial institution's own environment; Diebold Nixdorf publishes no shared multi-tenant
host for this API.
x-base-url: 'Not published. This is an OUTBOUND contract: the base URL belongs to the card issuer that implements these
endpoints, not to Diebold Nixdorf. The specification lists only the SwaggerHub mock server https://virtserver.swaggerhub.com/Diebold-Nixdorf/tm-pre-digitization-api-outbound/1.0.0.'
common:
- type: Authentication
url: authentication/diebold-authentication.yml
- type: VulnerabilityDisclosure
url: security/diebold-vulnerability-disclosure.yml
- type: DomainSecurity
url: security/diebold-domain-security.yml
- type: LinkedIn
url: https://www.linkedin.com/company/diebold
- type: Website
url: https://www.dieboldnixdorf.com
- type: Support
url: https://www.dieboldnixdorf.com/en-us/support
- type: Security
url: security/diebold-vulnerability-disclosure.yml
- type: Conventions
url: conventions/diebold-conventions.yml
- type: Idempotency
url: conventions/diebold-conventions.yml
- type: ErrorCatalog
url: errors/diebold-problem-types.yml
- type: DeclineCodes
url: errors/diebold-decline-codes.yml
- type: Conformance
url: conformance/diebold-conformance.yml
- type: Lifecycle
url: lifecycle/diebold-lifecycle.yml
- type: DataModel
url: data-model/diebold-data-model.yml
- type: Plans
url: plans/diebold-plans-pricing.yml
- type: RateLimits
url: rate-limits/diebold-rate-limits.yml
- type: Sandbox
url: sandbox/diebold-sandbox.yml
- type: Packages
url: packages/diebold-packages.yml
- type: LLMsTxt
url: llms/diebold-llms.txt
- type: AgentSkill
url: skills/_index.yml
- type: X-MCPServerCandidate
url: mcp/diebold-mcp.yml
- type: Webhooks
url: asyncapi/diebold-webhooks.yml
- type: DeveloperPortal
url: https://vrp-api.dieboldnixdorf.com/vrp/docs/vynamic-retail-platform-vrp
- type: Documentation
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf
- type: APIReference
url: https://api.swaggerhub.com/apis/Diebold-Nixdorf
- type: TermsOfService
url: https://www.dieboldnixdorf.com/en-us/terms-of-use
- type: PrivacyPolicy
url: https://www.dieboldnixdorf.com/en-us/privacy-policy/global-privacy-notice
- type: Contact
url: https://www.dieboldnixdorf.com/en-us/contact-us
maintainers:
- FN: Kin Lane
email: kin@apievangelist.com
x-base-url-finding:
checked: '2026-09-06'
verdict: no-usable-base
tool: repair-api-bases.py
tool_nomination: https://virtserver.swaggerhub.com/Diebold-Nixdorf/dn_pledge_api/3.1.0
accepted: false
reason: The tool returns `disagreement` and would nominate a SwaggerHub auto-generated MOCK, not a Diebold Nixdorf host.
It is deliberately not written into any baseURL. Every other candidate is localhost:8080 — the customer-deployment placeholder
Diebold Nixdorf publishes because Vynamic Transaction Middleware runs inside the bank. Each apis[] entry therefore carries
a templated {customer-host} base preserving the provider's own published path prefix, plus an x-base-url note; no real
host is invented.
x-enrichment:
date: '2026-09-06'
status: enriched
artifacts_added: 45
pass: local-v3
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