> ## Documentation Index > Fetch the complete documentation index at: https://docs.yapily.com/llms.txt > Use this file to discover all available pages before exploring further. # Create User > Create a new user in your application ## OpenAPI ````yaml /openapi-converted.json post /users openapi: 3.0.1 info: description: >- The Yapily API enables connections between your application and users' banks. For more information check out our [documentation](/introduction). In particular, make sure to view our [Getting Started](/getting-started/get-started) steps if this is your first time here. While testing the API, our list of [sandbox credentials](/resources/sandbox/sandbox-credentials) maybe useful. title: Yapily API version: 12.3.4 contact: name: Yapily Support url: https://docs.yapily.com/resources/support email: support@yapily.com servers: - url: https://api.yapily.com security: - basicAuth: [] tags: - description: >- The `Application` is the base entity that is used to interact with the API and contains a collection of `Institution` objects. You can have multiple Applications associated with your account e.g. a production application with live access to each `Institution` and a development application with access to sandboxes. name: Application - description: >- The Users endpoints are used to manage each user (otherwise known as the PSU) in Yapily. Each user belongs to an Application and as a consequence, so do each `Consent` created for a particular `User`. name: Users - description: >- An `Institution` object represents any Account Serving Payment Servicing Provider (ASPSP) that has been integrated and is accessible through the Yapily APIs (ASPSPs are entities that publish Read/Write APIs to permit, with customer consent, payments initiated by third party providers and/or make their customers financial data available to third party providers via their API endpoints). Any one of the following would be represented as Institution: - Traditional banks e.g. Santander - Neo-banks e.g. Monzo - Building societies e.g. Cumberland Building Society name: Institutions - description: >- The Consents endpoints are used to manage each `Consent` created by Yapily in response to an authorisation created for a user. The `Consent` object contains data that identifies a user's consent for a specific `Institution` within a Yapily application. Other than the id of the consent, the `institution-id` for the corresponding `Institution` and the user identifiers (`user-uuid` and `application-user-id`), it contains various details that indicates how the `Consent` can be used. name: Consents - description: >- Before calling [Financial Data](#yapily-api-financial-data) or [Payments](#yapily-api-payments) endpoints, a consent from an end-user must be obtained. Consents are valid for up to 90 days for Financial Data endpoints and have a single-use for Payment endpoints i.e. a new consent must be obtained for each payment. NOTE: A user consent is also referred to as an 'Authorisation'. name: Authorisations - description: >- In order to access a user's Financial Data, you are required to request an [Authorisation](#tag/Authorisations) from the user to share the account information the bank has. Once a `consent-token` is obtained, you can call the necessary Financial Data endpoint(s) to retrieve the user's data. name: Financial Data - description: >- In order to make a Payment on behalf of a user, you are required to request an [Authorisation](#tag/Authorisations) from the user to authorise the user's account to make the payment from. Once a `consent-token` is obtained, you can call the necessary Payments endpoint(s) to execute a payment. name: Payments - description: >+ The Notifications endpoints provide an interactive way for user to receive notifications according to different event-types. This feature is currently in private beta. Please reach out if you require access. name: Notifications - description: >- Variable Recurring Payments enables transfer of money between accounts held by the same person or transfer of money for business payments. In order to make Sweeping Variable Recurring Payments on behalf of a user, you are required to request an [Consent](#tag/Authorisations) from the user by calling the Sweeping Consent endpoint to authorise the user's account to make the payment. Once a `consent-token` is obtained, you can call the Payments endpoint to execute the Sweeping Variable Recurring Payments transaction. Before executing the payment, you have the option to confirm availability of funds in the user's account by calling the Funds Confirmation endpoint. See [VRP Payments](/payments/vrps/additional-information) for more information. name: Variable Recurring Payments - description: Hosted Payment Pages endpoints for payments products name: Hosted Payment Pages - description: Hosted Consent Pages endpoints for data products name: Hosted Consent Pages - description: >- The constraints endpoints can be used to retrieve institution specific data requirements and rules that will apply when performing other operations. name: Constraints - description: >- Application Management endpoints help with creating and managing client sub-applications. name: Application Management - description: 'Data Plus endpoints enable our customers to enrich transaction data. ' name: Data Plus - description: Webhook endpoints name: Webhooks - description: Application Beneficiaries Endpoints name: Application Beneficiaries - description: User Beneficiaries Endpoints name: User Beneficiaries paths: /users: post: tags: - Users summary: Create User description: Create a new user in your application operationId: addUser requestBody: content: application/json;charset=UTF-8: examples: Create User Example Request: $ref: '#/components/examples/create-user-example-request' schema: $ref: '#/components/schemas/NewApplicationUser' required: true responses: '201': content: application/json;charset=UTF-8: examples: Example Response: $ref: '#/components/examples/create-user_example-response' schema: $ref: '#/components/schemas/ApplicationUser' description: Created default: content: application/json;charset=UTF-8: examples: Error Response: $ref: '#/components/examples/error-response-code-401' schema: $ref: '#/components/schemas/ApiResponseError' description: Error Response components: examples: create-user-example-request: description: Create User Example Request value: applicationUserId: string create-user_example-response: description: Example Response value: uuid: 1ec8e814-085e-46ad-a303-3fe11808f67e applicationUuid: 50935110-c7df-4003-a06a-1cc5fd4643c9 applicationUserId: string createdAt: '2022-10-17T08:51:02.463Z' institutionConsents: [] error-response-code-401: description: Error Response value: error: code: 401 status: UNAUTHORIZED message: Full authentication is required to access this resource schemas: NewApplicationUser: type: object description: Details of a new user to be created for the application. properties: applicationUserId: type: string description: >- __Optional__. The unique identifier of the `Application User` assigned by the Application Owner. example: user-234562290 referenceId: type: string description: >- __Deprecated__. A non-unique reference Id for the `Application User`. vopOptOut: type: boolean description: >- __Optional__. A flag to indicate whether the user has opted out of VOP. default: false ApplicationUser: type: object description: Information about a user of an application. properties: uuid: type: string description: A unique identifier for the 'User' assigned by Yapily. format: uuid applicationUuid: type: string description: Unique identifier of the application the user is associated with. format: uuid applicationUserId: type: string description: __Conditional__. The user-friendly reference to the `User`. referenceId: type: string createdAt: type: string description: Date and time of when the user was created. format: date-time institutionConsents: type: array items: $ref: '#/components/schemas/InstitutionConsent' vopOptOut: type: boolean description: >- __Optional__. A flag to indicate whether the user has opted out of VOP. default: false ApiResponseError: type: object properties: error: $ref: '#/components/schemas/ApiError' raw: deprecated: true type: array items: $ref: '#/components/schemas/RawResponse' description: >- Used to return errors from the bank from each request - `400` - Returned by any `POST` endpoint when the body does not conform to the contract - `401` - Returned by any endpoint when an invalid `authToken` is used for authentication - `403` - Returned by any [Financial Data](/api-reference#financial-data) and any [Payments](/api-reference#payments) endpoint when the `Consent` is no longer authorised to access financial data or to make a payment - `404` - Returned by any endpoint where there are path parameters and the path parameters supplied are unable to find the desired resource - `409` - Returned by any `POST` endpoint when creating a resource that conflicts with any other existing resource e.g. [Create User](/api-reference/addUser) - `424` - Returned by any [Financial Data](/api-reference#financial-data) and any [Payments](/api-reference#payments) endpoint when the feature to be accessed is not supported by the `Institution`. - `500` - Returned by any endpoint when Yapily is down. If you encounter any false positives, please [notify us](mailto:support@yapily.com) example: error: tracingId: 74b13ce8ed51419f92c5d609e04532de code: 424 institutionError: errorMessage: >- {"Code":"500 Internal Server Error","Id":"5ff8d331-4282-41e0-b5ef-1ac9ac39f009","Message":"Technical Error. Please try again later","Errors":[{"ErrorCode":"UK.OBIE.UnexpectedError","Message":"There was a problem processing your request. Please try again later"}]} httpStatusCode: 500 source: INSTITUTION status: FAILED_DEPENDENCY InstitutionConsent: type: object description: >- `Institution` authorised consents which are currently in place for the `Application User`. properties: institutionId: type: string description: >- __Mandatory__. The `Institution` the authorisation request is sent to. ApiError: type: object description: Provides details of the error that has occurred. properties: code: type: integer description: __Mandatory__. Numeric `HTTP` status code associated with the error. format: int32 institutionError: $ref: '#/components/schemas/InstitutionError' message: type: string description: >- __Mandatory__. Description of the exact error that has been experienced. source: type: string status: type: string description: __Mandatory__. Textual description of the `HTTP` error status type. tracingId: type: string description: >- __Optional__. A unique identifier assigned by Yapily for the request that can be used for support purposes. RawResponse: deprecated: true type: object description: >- [DEPRECATED] Interaction (raw request and response) that occurred with the `Institution` in order to fulfil a request. properties: request: $ref: '#/components/schemas/RawRequest' duration: type: string format: iso8601 headers: type: object additionalProperties: type: string resultCode: type: integer format: int32 result: type: object InstitutionError: type: object description: >- Raw error details provided by the `Institution`, when it was the error source. properties: errorMessage: type: string description: Textual description of the `Institution` error. httpStatusCode: type: integer description: Numeric HTTP status code associated with the `Institution` error. format: int32 RawRequest: type: object properties: method: type: string url: type: string requestInstant: type: string format: date-time headers: type: object additionalProperties: type: string body: type: object bodyParameters: type: object additionalProperties: type: string startTime: type: string format: date-time startedAt: type: string format: date-time deprecated: true securitySchemes: basicAuth: description: >- Use HTTP Basic Authentication with your Application ID as username and Application Secret as password. Manage credentials in the [Yapily Console](https://console.yapily.com/). See [Authentication](/api-reference/authentication) for details. scheme: basic type: http ````