> ## Documentation Index > Fetch the complete documentation index at: https://developers.dwolla.com/llms.txt > Use this file to discover all available pages before exploring further. # Create a funding source for an account > Create a funding source by adding a bank account to a Main Dwolla Account. This endpoint allows you to connect a checking or savings account using either manual bank account details or an exchange resource. For more information about funding sources, see the [Funding Sources API Reference](https://developers.dwolla.com/docs/api-reference/funding-sources). ## OpenAPI ````yaml post /funding-sources openapi: 3.1.0 info: title: Dwolla API description: Dwolla API Documentation contact: name: Dwolla Developer Relations Team url: https://developers.dwolla.com email: api@dwolla.com version: '2.0' termsOfService: https://www.dwolla.com/legal/tos/ license: name: MIT url: https://github.com/Dwolla/dwolla-openapi/blob/master/LICENSE servers: - url: https://api.dwolla.com description: Production server - url: https://api-sandbox.dwolla.com description: Sandbox server security: - clientCredentials: [] tags: - name: tokens description: Operations related to Application Access Tokens - name: root description: Root API operations - name: accounts description: Operations related to Accounts - name: customers description: Operations related to Customers - name: kba description: Operations related to Knowledge-Based Authentication - name: beneficial owners description: Operations related to Beneficial Owners - name: documents description: Operations related to Documents - name: exchanges description: Operations related to Exchanges - name: exchange sessions description: Operations related to Exchange Sessions - name: funding sources description: Operations related to Funding Sources - name: transfers description: Operations related to Transfers - name: labels description: Operations related to Labels - name: mass payments description: Operations related to Mass Payments - name: events description: Operations related to Events - name: webhook subscriptions description: Operations related to Webhook Subscriptions - name: webhooks description: Operations related to Webhooks - name: client tokens description: Operations related to Client Tokens - name: sandbox simulations description: Sandbox-only operations for simulating processing of bank transfers paths: /funding-sources: post: tags: - accounts summary: Create a funding source for an account description: > Create a funding source by adding a bank account to a Main Dwolla Account. This endpoint allows you to connect a checking or savings account using either manual bank account details or an exchange resource. For more information about funding sources, see the [Funding Sources API Reference](https://developers.dwolla.com/docs/api-reference/funding-sources). operationId: createFundingSource parameters: - $ref: '#/components/parameters/Accept' requestBody: required: true description: Parameters for the funding source to be created content: application/json: schema: $ref: '#/components/schemas/CreateAccountFundingSource' responses: '201': description: successful operation headers: Location: $ref: '#/components/headers/Location' '400': description: Bad request or duplicate resource headers: {} content: application/vnd.dwolla.v1.hal+json: schema: oneOf: - $ref: '#/components/schemas/BadRequestSchema' - $ref: '#/components/schemas/DuplicateResourceSchema' '403': description: forbidden headers: {} content: application/vnd.dwolla.v1.hal+json: schema: type: object properties: code: type: string example: forbidden message: type: string example: Not authorized to create funding source. x-codeSamples: - lang: bash source: > POST https://api-sandbox.dwolla.com/funding-sources Content-Type: application/vnd.dwolla.v1.hal+json Accept: application/vnd.dwolla.v1.hal+json Authorization: Bearer pBA9fVDBEyYZCEsLf/wKehyh1RTpzjUj5KzIRfDi0wKTii7DqY { "routingNumber": "222222226", "accountNumber": "123456789", "bankAccountType": "checking", "name": "My Bank" } - lang: javascript source: | // Using dwolla-v2 - https://github.com/Dwolla/dwolla-v2-node var requestBody = { routingNumber: "222222226", accountNumber: "123456789", bankAccountType: "checking", name: "My Bank", }; dwolla .post("funding-sources", requestBody) .then((res) => res.headers.get("location")); // => 'https://api-sandbox.dwolla.com/funding-sources/04173e17-6398-4d36-a167-9d98c4b1f1c3' - lang: python source: > # Using dwollav2 - https://github.com/Dwolla/dwolla-v2-python request_body = { 'routingNumber': '222222226', 'accountNumber': '123456789', 'bankAccountType': 'checking', 'name': 'My Bank' } funding_source = app_token.post('funding-sources', request_body) funding_source.headers['location'] # => 'https://api-sandbox.dwolla.com/funding-sources/04173e17-6398-4d36-a167-9d98c4b1f1c3' - lang: php source: > createFundingSource([ "routingNumber" => "222222226", "accountNumber" => "123456789", "bankAccountType" => "checking", "name" => "My Bank" ]); $fundingSource; # => "https://api-sandbox.dwolla.com/funding-sources/04173e17-6398-4d36-a167-9d98c4b1f1c3" ?> - lang: ruby source: > # Using dwolla_v2 - https://github.com/Dwolla/dwolla-v2-ruby request_body = { routingNumber: '222222226', accountNumber: '123456789', bankAccountType: 'checking', name: 'My Bank' } funding_source = app_token.post "funding-sources", request_body funding_source.response_headers[:location] # => "https://api-sandbox.dwolla.com/funding-sources/04173e17-6398-4d36-a167-9d98c4b1f1c3" components: parameters: Accept: name: Accept in: header required: true description: >- The media type of the response. Must be application/vnd.dwolla.v1.hal+json schema: type: string enum: - application/vnd.dwolla.v1.hal+json default: application/vnd.dwolla.v1.hal+json schemas: CreateAccountFundingSource: title: CreateAccountFundingSource type: object properties: _links: type: object properties: exchange: type: object properties: href: type: string name: type: string bankAccountType: type: string enum: - checking - savings accountNumber: type: string routingNumber: type: string channels: type: array items: type: string required: - name - bankAccountType - accountNumber - routingNumber BadRequestSchema: title: BadRequestSchema type: object required: - code - message properties: code: type: string example: ValidationError message: type: string example: >- Validation error(s) present. See embedded errors list for more details. _embedded: type: object properties: code: type: string example: ValidationError message: type: string example: >- Validation error(s) present. See embedded errors list for more details. DuplicateResourceSchema: title: DuplicateResourceSchema type: object required: - code - message properties: code: type: string example: DuplicateResource message: type: string example: 'Bank already exists: id=df8392e5-4c06-42ed-b247-c098ed6f5a11' _links: type: object properties: about: type: object properties: href: type: string example: >- https://api.dwolla.com/funding-sources/df8392e5-4c06-42ed-b247-c098ed6f5a11 type: type: string example: application/vnd.dwolla.v1.hal+json resource-type: type: string example: funding-source headers: Location: description: The location of the created resource schema: type: string securitySchemes: clientCredentials: type: oauth2 flows: clientCredentials: tokenUrl: /token x-speakeasy-token-endpoint-authentication: client_secret_basic scopes: {} ````