> ## Documentation Index > Fetch the complete documentation index at: https://docs.sakawave.com/llms.txt > Use this file to discover all available pages before exploring further. # Get a transaction > Returns a transaction and its related transfer, bill payment, card payment, or card operation when available. ## Prerequisites Use a transactions-capable business account and a valid API key. This operation is limited to 600 requests per minute per business and API key. ## OpenAPI ````yaml /openapi.json get /v1/transactions/{transactionId} openapi: 3.1.0 info: title: Sakawave Business API version: 1.0.0-draft summary: >- Accounts, transfers, FX quotes, and transaction reconciliation for Sakawave businesses. description: >- Generated from the public NestJS controllers and their Zod request schemas. Public URLs and policy statements remain draft until the Phase 1 contract checklist is approved. contact: name: Sakawave API Support email: api-support@sakawave.example servers: - url: https://sandbox-api.sakawave.example description: Sandbox (default) - url: https://api.sakawave.example description: Live security: - bearerAuth: [] tags: - name: Bill payments description: Browse the biller catalog, validate a customer, and pay a bill. - name: Cards description: Issue, fund, and control USD virtual and disposable cards. - name: eSIM description: >- Sell mobile data abroad: browse the catalog, buy an eSIM, and manage it once installed. - name: Currencies and countries description: >- Reference data: what may be held, what may be sent where, and which jurisdictions are served. - name: Customers description: Create and manage customers of your business. - name: Accounts description: >- Open business and customer accounts, and issue the destinations that fund them. - name: Transfer destinations description: Resolve temporary destinations and saved recipients. - name: FX quotes description: Create and retrieve time-limited cross-currency quotes. - name: Transfers description: Preview, create, and monitor transfers. - name: Transactions description: Read ledger entries for reconciliation. paths: /v1/transactions/{transactionId}: get: tags: - Transactions summary: Get a transaction description: >- Returns a transaction and its related transfer, bill payment, card payment, or card operation when available. operationId: getTransaction parameters: - name: transactionId in: path required: true description: Transaction ULID. schema: $ref: '#/components/schemas/Ulid' responses: '200': description: Successful response. headers: X-Request-ID: description: >- The request identifier assigned by Sakawave. Include it in support requests. schema: type: string content: application/json: schema: $ref: '#/components/schemas/TransactionDetailResponse' example: id: 01K2Z3AB4K5M6N7P8QRSTVWXYZ account: id: 01K2Z3AB4D5E6F7G8H9JKMNPQR name: Ada NGN wallet tag: AA0271849366 type: operational category: fiat amount: '2500000' amountFormatted: '25000.00' fee: '5000' feeFormatted: '50.00' balanceBefore: '5000000' balanceBeforeFormatted: '50000.00' balanceAfter: '2495000' balanceAfterFormatted: '24950.00' currency: NGN type: debit category: transfer subCategory: outward status: completed channel: internal internalReference: txn_sandbox_tutorial_001 externalReference: payout_20260814_001 groupReference: null reversalOfTransactionId: null narration: Sandbox tutorial transfer createdAt: '2026-08-14T09:08:00.000Z' relatedOperation: type: transfer id: 01K2Z3AB4J5K6M7N8PQRSTVWXY status: completed transferReference: SKWV-TRF-01K2Z3AB4J5K6M7N8PQRSTVWXY destinationType: own_account recipient: Treasury NGN institutionName: null accountNumberLast4: null sourceAmount: '25000.00' sourceCurrency: NGN destinationAmount: '25000.00' destinationCurrency: NGN failureCode: null failureReason: null '400': $ref: '#/components/responses/ValidationError' '401': $ref: '#/components/responses/AuthenticationError' '404': $ref: '#/components/responses/NotFoundError' '409': $ref: '#/components/responses/ConflictError' '429': $ref: '#/components/responses/RateLimitError' '500': $ref: '#/components/responses/ServerError' security: - bearerAuth: [] components: schemas: Ulid: type: string minLength: 26 maxLength: 26 pattern: ^[0-7][0-9A-HJKMNP-TV-Z]{25}$ example: 01K2Z3AB4C5D6E7F8G9HJKMNPQ description: A 26-character ULID. TransactionDetailResponse: type: object additionalProperties: false properties: id: $ref: '#/components/schemas/Ulid' account: $ref: '#/components/schemas/TransactionAccount' amount: $ref: '#/components/schemas/MinorUnits' amountFormatted: type: string fee: $ref: '#/components/schemas/MinorUnits' feeFormatted: type: string balanceBefore: $ref: '#/components/schemas/MinorUnits' balanceBeforeFormatted: type: string balanceAfter: $ref: '#/components/schemas/MinorUnits' balanceAfterFormatted: type: string currency: $ref: '#/components/schemas/AssetCode' type: type: string enum: - debit - credit category: type: string enum: - card - transfer - bills_payment - crypto subCategory: type: string enum: - charge - card_funding - card_withdrawal - refund - crypto_deposit - crypto_withdrawal - utility - data - airtime - cable_tv - education - betting - donation - internet - transport - other - inward - outward status: type: string enum: - pending - completed - failed - reversed - rejected channel: anyOf: - type: string - type: 'null' internalReference: type: string externalReference: anyOf: - type: string - type: 'null' groupReference: anyOf: - type: string - type: 'null' reversalOfTransactionId: anyOf: - $ref: '#/components/schemas/Ulid' - type: 'null' narration: anyOf: - type: string - type: 'null' createdAt: $ref: '#/components/schemas/IsoTimestamp' relatedOperation: $ref: '#/components/schemas/RelatedOperation' required: - id - account - amount - amountFormatted - fee - feeFormatted - balanceBefore - balanceBeforeFormatted - balanceAfter - balanceAfterFormatted - currency - type - category - subCategory - status - channel - internalReference - externalReference - groupReference - reversalOfTransactionId - narration - createdAt - relatedOperation TransactionAccount: type: object additionalProperties: false properties: id: $ref: '#/components/schemas/Ulid' name: type: string tag: type: string type: type: string category: type: string required: - id - name - tag - type - category MinorUnits: type: string pattern: ^-?\d+$ example: '2500000' description: >- An integer number of the asset’s smallest unit. Use this value for arithmetic. AssetCode: type: string enum: - NGN - USD - GBP - EUR - GHS - ZAR - UGX - CAD - MXN - AED - BTC - ETH - USDT - USDC IsoTimestamp: type: string format: date-time example: '2026-08-14T09:00:00.000Z' RelatedOperation: anyOf: - oneOf: - type: object additionalProperties: true properties: type: const: transfer id: $ref: '#/components/schemas/Ulid' status: type: string transferReference: type: string required: - type - id - status - transferReference - type: object additionalProperties: true properties: type: const: bill_payment id: $ref: '#/components/schemas/Ulid' status: type: string paymentReference: type: string required: - type - id - status - paymentReference - type: object additionalProperties: true properties: type: const: card_payment id: $ref: '#/components/schemas/Ulid' cardId: $ref: '#/components/schemas/Ulid' status: type: string required: - type - id - cardId - status - type: object additionalProperties: true properties: type: const: card_operation id: $ref: '#/components/schemas/Ulid' cardId: $ref: '#/components/schemas/Ulid' operation: type: string status: type: string required: - type - id - cardId - operation - status discriminator: propertyName: type - type: 'null' RequestError: anyOf: - $ref: '#/components/schemas/ValidationError' - $ref: '#/components/schemas/Error' description: >- Either a field-level validation failure carrying an errors array, or a rule the request broke, identified by code. Error: type: object additionalProperties: true properties: statusCode: type: integer message: type: string description: >- A sentence suitable for a log or a support conversation, not for a user interface. code: type: string description: >- The stable machine-readable reason. Branch on this, never on the message. required: - message - code description: >- An error body. Individual errors may add context fields alongside these three. RateLimitError: type: object additionalProperties: false properties: statusCode: const: 429 message: type: string code: const: api_key_rate_limit_exceeded retryAfterSeconds: type: integer minimum: 1 required: - statusCode - message - code - retryAfterSeconds ValidationError: type: object additionalProperties: false properties: statusCode: const: 400 message: type: string description: The single failure, or a count when more than one field failed. code: const: validation_failed errors: type: array items: $ref: '#/components/schemas/ValidationFailure' required: - statusCode - message - code - errors ValidationFailure: type: object additionalProperties: false properties: message: type: string field: type: string code: type: string path: type: array items: anyOf: - type: string - type: integer required: - message - field - code - path responses: ValidationError: description: >- The request was rejected before it was acted on. Field failures list every failing field. headers: X-Request-ID: description: >- The request identifier assigned by Sakawave. Include it in support requests. schema: type: string content: application/json: schema: $ref: '#/components/schemas/RequestError' example: statusCode: 400 message: Must be a valid identifier. code: validation_failed errors: - message: Must be a valid identifier. field: accountId code: custom path: - accountId AuthenticationError: description: >- The API key is missing, invalid, inactive, expired, for another environment, or blocked by its IP allowlist. headers: X-Request-ID: description: >- The request identifier assigned by Sakawave. Include it in support requests. schema: type: string content: application/json: schema: $ref: '#/components/schemas/Error' example: statusCode: 401 code: INVALID_API_KEY message: Invalid or inactive API credentials. NotFoundError: description: The requested resource was not found for this business. headers: X-Request-ID: description: >- The request identifier assigned by Sakawave. Include it in support requests. schema: type: string content: application/json: schema: $ref: '#/components/schemas/Error' example: statusCode: 404 code: resource_not_found message: Resource not found. ConflictError: description: The request conflicts with the current resource state. headers: X-Request-ID: description: >- The request identifier assigned by Sakawave. Include it in support requests. schema: type: string content: application/json: schema: $ref: '#/components/schemas/Error' example: statusCode: 409 code: resource_conflict message: The request conflicts with the current resource state. RateLimitError: description: The API key rate limit was exceeded. headers: X-Request-ID: description: >- The request identifier assigned by Sakawave. Include it in support requests. schema: type: string content: application/json: schema: $ref: '#/components/schemas/RateLimitError' example: statusCode: 429 message: Too many API requests. Try again later. code: api_key_rate_limit_exceeded retryAfterSeconds: 17 ServerError: description: An unexpected server error occurred. headers: X-Request-ID: description: >- The request identifier assigned by Sakawave. Include it in support requests. schema: type: string content: application/json: schema: $ref: '#/components/schemas/Error' example: statusCode: 500 code: internal_server_error message: An unexpected error occurred. securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: Sakawave API key description: >- A secret API key, sent as `Authorization: Bearer sk_test_…` in sandbox or `Bearer sk_live_…` in live. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.