> ## Documentation Index > Fetch the complete documentation index at: https://docs.grainfinance.co/llms.txt > Use this file to discover all available pages before exploring further. # Accept > Accepts a previously retrieved offline rate proposal and books the hedge accordingly. ## OpenAPI ````yaml POST /customers/{customerId}/hedges/accept-offline-quote openapi: 3.1.0 info: title: Grain API version: 1.0.0 description: >- Grain's API provides a comprehensive set of endpoints for managing hedging, spot transactions, pricing, and fund movements - enabling seamless integration of FX workflows into your platform. Each API call follows REST conventions, uses secure authentication, and returns standardized responses for consistency across environments. license: name: Creative Commons Attribution 3.0 contact: name: Grain Finance url: https://docs.grainfinance.co email: support@grainfinance.co termsOfService: https://grainfinance.co/terms-of-service/ x-apiClientRegistration: url: https://grainfinance.co/partners servers: - url: https://api.grainfinance.co/v1 description: Grain API security: [] tags: - name: Hedges description: >- Hedge objects represent transactions that lock exchange rates for future dates. A single hedge locks an exchange rate for a future transaction between two currencies. - name: Dual Hedges description: >- A dual hedge mitigates FX risk by automatically generating two linked hedge legs - a customer leg and a supplier leg - both routed through the customer's functional currency. This structure reduces exposure to currency fluctuations for both cash flow and accounting purposes, while allowing independent tracking and reporting of each hedge leg. - name: Customers description: >- Customer objects represent your end customers on the Grain platform. A customer must be created before a hedge or spot transaction can be initiated. - name: Pricing description: >- Pricing endpoints provide access to FX rates for currency pairs that are not being hedged. These endpoints can be used for live rate display or bulk retrieval to support high-volume quoting workflows. - name: Spots description: >- Spot objects represent currency conversions executed for immediate or near-term settlement. - name: Conversions description: >- Conversion objects represent currency conversions executed for immediate or near-term settlement. - name: Wallets description: Endpoints to view balances, manage funding, and perform transfers. paths: /customers/{customerId}/hedges/accept-offline-quote: post: tags: - Hedges description: >- Accepts a previously retrieved offline rate proposal and books the hedge accordingly. operationId: Offline Accept parameters: - description: The id of the customer within the Grain platform. in: path name: customerId required: true schema: type: string - in: header name: X-Customer-IP required: true schema: $ref: '#/components/schemas/CustomerIP' requestBody: description: The payload required in order to accept an offline quote hedge required: true content: application/json: schema: $ref: '#/components/schemas/AcceptOfflineHedgeProposalRequestBody' description: The payload required in order to accept an offline quote hedge responses: '200': description: Hedge Accepted content: application/json: schema: $ref: '#/components/schemas/AcceptOfflineHedgeResponseBody' '400': description: >- The request failed because it is not well-formed or is syntactically incorrect or violates schema. content: application/json: schema: $ref: '#/components/schemas/AcceptOfflineHedgeBadParamsErrorResponse' '404': description: The request failed because the resource does not exist. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '409': description: The request failed because a business rule constraint was violated. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '412': description: The request failed because one or more preconditions were not met. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '422': description: >- The request failed because it is either semantically incorrect or has failed business validation. content: application/json: schema: $ref: >- #/components/schemas/AcceptOfflineHedgeRevisionExpiredErrorResponse '428': description: The request failed because a required precondition was not provided. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' '451': description: The request failed due to legal restrictions. content: application/json: schema: $ref: '#/components/schemas/RejectedByIPError' security: - api-key: [] components: schemas: CustomerIP: type: string format: IPv4 description: >- The IPv4 address of the browser from which the customer contacts your platform.
_example_: `192.158.1.38` pattern: ((25[0-5]|(2[0-4]|1\d|[1-9]|)\d)\.?\b){4} AcceptOfflineHedgeProposalRequestBody: description: The required parameters when accepting an offline hedge properties: revision: type: number format: double description: >- The id of the revision that defines the accepted rate for the currency-pair and tenor. example: 156 fromCurrency: type: string description: >- The currency in which the transaction should be paid at by your customer. example: MXN toCurrency: type: string description: the currency you want to buy. example: USD toCurrencyAmount: type: number format: double description: The amount to hedge in the toCurrency. example: 100000 endAt: $ref: '#/components/schemas/GrainDateFormat' description: >- The date in which the hedge will be settled, denoted in `YYYY-MM-DD` format. example: '2024-02-23' rate: type: number format: double description: >- Represents the exchange rate according to the offline map of currency pairs to tenor object. The calculation of the tenor is based on the difference in calendar days between the 'tenorCalculationDate' and the 'endAt' date: - If the number of calendar days from 'tenorCalculationDate' to `endAt` is less than or equal to 7, the tenor is 7 days. - If the number of calendar days from 'tenorCalculationDate' to `endAt` is greater than 7 and less than or equal to 14, the tenor is 14 days. - If the number of calendar days from 'tenorCalculationDate' to `endAt` is greater than 14 and less than or equal to 30, the tenor is 30 days. - If the number of calendar days from 'tenorCalculationDate' to `endAt` is greater than 30 and less than or equal to 60, the tenor is 60 days. - ... - If the number of calendar days from 'tenorCalculationDate' to `endAt` is greater than 330 and less than or equal to 360, the tenor is 360 days. When counting the difference in calendar days, every day is counted as one regardless of the duration of the day. This means that the calculation includes all days: weekends, holidays, and weekdays alike. For example, if the 'endAt' date is 2023-12-16 and the 'tenorCalculationDate' is 2024-12-15, the result is 1 calendar day. To calculate the difference in calendar days accurately, we recommend using a date manipulation library, such as date-fns and its `differenceInCalendarDays` function, or a similar feature provided by other date libraries. example: 20.616512 externalTransactionId: type: string description: Optional The transaction id, as identified within your system. example: 780231b3ae0d7e9e5097nd89 extraFields: $ref: '#/components/schemas/ExtraFieldsParam' required: - revision - fromCurrency - toCurrency - toCurrencyAmount - endAt - rate type: object additionalProperties: false AcceptOfflineHedgeResponseBody: description: The response of accepting an offline rate for a hedge. properties: id: $ref: '#/components/schemas/UUID' description: The id of the created object. example: 1b0ada1e-fa1b-4cfe-a553-01b340c5650e transactionId: $ref: '#/components/schemas/UUID' description: The id of the transaction within the Grain platform. example: 4d78ac65-2c3f-47e2-8bf3-3f76124e9d27 required: - id type: object additionalProperties: false AcceptOfflineHedgeBadParamsErrorResponse: description: An API Error properties: message: type: string description: A short code of the error. example: REVISION_INVALID reason: type: string description: A detailed description of the reason for the failure. example: >- The revision number is not valid or does not exist. Please fetch a new rate table using the /offline-rates endpoint and pass a valid revision. required: - message type: object additionalProperties: false ErrorResponse: description: An API Error properties: message: type: string description: A short explanation of the error. example: Can't perform this action reason: type: string description: A detailed description of the reason for the failure. example: >- Supplied object is in *Cancelled* state, which prevents performing this action required: - message type: object additionalProperties: false AcceptOfflineHedgeRevisionExpiredErrorResponse: description: An API Error properties: message: type: string description: A short code of the error. example: REVISION_EXPIRED reason: type: string description: A detailed description of the reason for the failure. example: >- The revision number has expired. Please fetch a new rate table using the /offline-rates endpoint. required: - message type: object additionalProperties: false RejectedByIPError: properties: message: type: string description: A short explanation of the error. example: Could not parse IP address (v4 or v6) for ip required: - message type: object additionalProperties: false GrainDateFormat: type: string example: '2023-04-15' format: YYYY-MM-DD description: >- The date format accepted by Grain's API. We accept dash separated ISO-8601 date-only strings. pattern: \d{4}-\d{2}-\d{2} ExtraFieldsParam: properties: {} additionalProperties: anyOf: - type: string - type: number format: double - type: boolean type: object example: field_a: value_a field_b: value_b description: |- Additional fields that provide further details about the transaction. These fields should be specified as a valid JSON object. UUID: type: string format: uuid description: |- Stringified UUIDv4. See [RFC 4112](https://tools.ietf.org/html/rfc4122) pattern: >- [0-9A-Fa-f]{8}-[0-9A-Fa-f]{4}-4[0-9A-Fa-f]{3}-[89ABab][0-9A-Fa-f]{3}-[0-9A-Fa-f]{12} securitySchemes: api-key: type: http scheme: basic description: >- Basic authentication using the partner API keys from https://console.grainfinance.co/keys ````