> ## Documentation Index > Fetch the complete documentation index at: https://docs.blockradar.co/llms.txt > Use this file to discover all available pages before exploring further. # Cancel Transaction > Cancel Transaction ## OpenAPI ````yaml post /v1/wallets/{walletId}/transactions/cancel openapi: 3.0.3 info: title: Blockradar Documentation description: >- The OpenAPI specification of the Blockradar API that enables fintechs and developers to seamlessly integrate stablecoin deposits and payments into their products. version: 1.0.0 contact: {} servers: - url: https://api.blockradar.co security: - apiKey: [] tags: - name: Rewards description: >- Non-custodial yield (Earn) on stablecoins via regulated (Fija) and DeFi (Aave) strategies. Deposit, withdraw, preview fees, and read positions and earnings at the business, wallet, and sub-address level. Amounts are returned net of the platform fee, which applies only to interest earned. - name: Wallet description: >- Wallet Management System Comprehensive wallet management API for multi-blockchain operations. This system handles wallet creation, configuration, balance monitoring, and integration with various blockchain networks. Core Functionality: - Multi-blockchain wallet creation and management - Balance monitoring and asset tracking - Auto-settlement rule configuration - Gateway wallet integration - Address generation and management - Transaction monitoring and processing - name: Addresses description: >- Address Management System Comprehensive blockchain address management API for operations. This system handles address creation, validation, monitoring, and management across multiple blockchain networks. Core Functionality: - Multi-blockchain address generation - Address validation and verification - Balance monitoring and tracking - Transaction history management - Address labeling and organization - Integration with wallet systems - Real-time address monitoring - name: Asset - name: Transactions - name: Withdraw description: >- The Withdraw feature allows you to programmatically withdraw stablecoins from your master wallet with ease - name: Withdraw Fiat - name: Signing description: >- Typed data signing service for secure transaction authorization. Supports all EIP-712 standards including EIP-3009 (TransferWithAuthorization) and EIP-2612 (Permit). - name: Swap description: >- The Swap feature enables users to exchange one stabelcoin asset for another across different blockchains. This feature provides a seamless way to convert between different stablecoins while maintaining security and compliance standards. - name: Liquidity Pool - name: Virtual Accounts description: >- Virtual Accounts API provides endpoints for managing virtual bank accounts linked to master wallets or child addresses. This API enables businesses to: - Create virtual accounts for customers to receive payments - Retrieve virtual account details - Activate/deactivate virtual accounts **Virtual Account Types:** Virtual accounts support different types with varying behaviors: 1. **AUTO_FUNDING** (Default): - Automatically mints stablecoin when fiat payments are received - Transfers the stablecoin to the linked wallet/address immediately - Best for real-time payment processing **How It Works - Auto-Funding Flow (AUTO_FUNDING type only):** When a customer sends fiat currency to a virtual account with type AUTO_FUNDING: 1. **Payment Receipt**: The payment is received in the virtual account 2. **Automatic Minting**: The system automatically mints the stablecoin equivalent 3. **Blockchain Transfer**: The minted stablecoin is transferred to the virtual account's linked wallet or address **Note**: The auto-funding flow only applies to virtual accounts with type `AUTO_FUNDING`. Other types have different processing behaviors. ## Prerequisites Before creating virtual accounts, ensure: - **Compliance requirements must be completed** (see [Compliance Requirements](http://localhost:3000/essentials/virtual-accounts#compliance-requirements) section below) - **Virtual accounts feature must be enabled** for your business (reach out to [support@blockradar.co](https://mailto:support@blockradar.co) or use live chat on the dashboard to enable the feature after compliance approval) - **Only available on MAINNET environment** (not available on testnet) - **Master Wallet must support stablecoin asset** - Your account plan must include stablecoin access (upgrade from Dashboard → Settings → Subscription if needed) **Supported Currency:** - Fiat: NGN (Nigerian Naira) - Stablecoin: cNGN - minted automatically on blockchain (for AUTO_FUNDING type) - name: Auto Settlements description: >- Creates a new auto settlement rule for a wallet. Auto settlement automatically transfers/swap assets based on configured rules when certain conditions are met. Rules can be configured for: - Source blockchain and assets - Destination blockchain and asset - Amount ranges (min/max) - Slippage tolerance - Gateway vs non-gateway wallets Gateway rules are required for testnet wallets and must have matching source/destination assets. - name: Smart Contract description: >- This API provides endpoints for interacting with smart contracts on the blockchain. It allows for reading contract data, executing contract functions, and estimating network fees. - name: Gateway description: >- The Gateway feature enables you to programmatically deposit USDC into a unified, chain-abstracted balance and instantly mint USDC on any supported blockchain, streamlining crosschain transfers and eliminating manual bridging steps and rebalancing complexities. - name: Payment Links description: >- The Payment Pages API provides a quick and secure way to collect payment for servcies. - name: Beneficiaries description: >- This API allows you to create beneficiaries with automatic settlements to your external wallets on a periodic basis. Example frequencies: INSTANT, DAILY, WEEKLY, MONTHLY, YEARLY - name: AML description: >- The AML (Anti Money Laundering) API provides a quick way for you to check if an address is blacklisted or sanctioned - name: Asset Recovery description: >- Enables the recovery (salvage) of both native blockchain assets and tokens from a specified sender address to a recipient address. This feature supports emergency fund recovery and asset consolidation operations. - name: Miscellaneous description: >- The Miscellaneous API are supporting APIs that can be used to provide more details to other APIs. - name: Asset1 - name: Blockchain - name: Webhooks description: >- Webhooks allow you to set up a notification system that can be used to receive updates on certain requests made to the Blockradar API. To see full list and instructions [https://docs.blockradar.co/essentials/webhooks](https://docs.blockradar.co/essentials/webhooks) ## - name: Deposit - name: Withdraw1 - name: Swap1 - name: Gateway1 paths: /v1/wallets/{walletId}/transactions/cancel: parameters: - name: walletId in: path required: true schema: type: string example: '{{walletId}}' post: tags: - Transactions summary: Cancel Transaction description: Cancel Transaction operationId: cancelTransaction requestBody: content: application/json: schema: type: object properties: id: type: string example: 960661a2-0337-4609-b870-348d67fae934 examples: Cancel Transaction: value: id: 960661a2-0337-4609-b870-348d67fae934 responses: '200': description: '200' content: application/json: schema: type: object properties: data: type: object properties: address: nullable: true example: null amlScreening: type: object properties: {} amount: type: string example: '0.1' amountPaid: type: string example: '0.1' amountUSD: type: string example: '0.1' asset: type: object properties: address: type: string example: '0x55d398326f99059fF775485246999027B3197955' createdAt: type: string example: '2024-05-14T16:53:33.671Z' currency: type: string example: USD decimals: type: number example: 18 id: type: string example: e572fb27-3e52-4dd0-8452-f9a681be03f3 isActive: type: boolean example: true isNative: type: boolean example: false name: type: string example: Tether USD network: type: string example: mainnet standard: type: string example: BEP20 symbol: type: string example: USDT updatedAt: type: string example: '2025-04-17T03:50:19.952Z' assetSwept: nullable: true example: null assetSweptAmount: nullable: true example: null assetSweptAt: nullable: true example: null assetSweptGasFee: nullable: true example: null assetSweptHash: nullable: true example: null assetSweptRecipientAddress: nullable: true example: null assetSweptSenderAddress: nullable: true example: null blockHash: nullable: true example: null blockNumber: nullable: true example: null blockchain: type: object properties: createdAt: type: string example: '2024-05-14T16:53:33.106Z' derivationPath: type: string example: m/44'/60'/0'/0 id: type: string example: b80d3d5e-16f1-4d99-be5e-6dfcd27f89aa isActive: type: boolean example: true isEvmCompatible: type: boolean example: true isL2: type: boolean example: false name: type: string example: BNB smart chain slug: type: string example: bnb-smart-chain symbol: type: string example: bnb tokenStandard: type: string example: BEP20 updatedAt: type: string example: '2024-11-26T19:04:13.941Z' chainId: nullable: true example: null confirmations: nullable: true example: null confirmed: type: boolean example: false createdAt: type: string example: '2025-09-23T15:14:30.894Z' createdChannel: type: string example: dashboard currency: type: string example: USD fee: type: string example: '0.00003' feeHash: type: string example: >- 0xf41d394f91dfb1c07890bac1cf5d408f6c0edb526ed371b481ab46caf0acb1d2 gasFee: nullable: true example: null gasPrice: nullable: true example: null gasUsed: nullable: true example: null hash: nullable: true example: null id: type: string example: 5f65c56e-58d9-4b26-a2fd-98b5b9cbd26b metadata: nullable: true example: null network: type: string example: mainnet note: type: string example: ' Withdrawal of 0.1 USDT from 0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4 to 0xb55c054D8eE75224E1033e6eC775B4F62D942b43 on BNB smart chain' rate: nullable: true example: null rateUSD: type: string example: '1' reason: type: string example: >- Withdrawal of 0.1 from 0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4 USDT to 0xb55c054D8eE75224E1033e6eC775B4F62D942b43 on BNB smart chain recipientAddress: type: string example: '0xb55c054D8eE75224E1033e6eC775B4F62D942b43' reference: type: string example: OjAhIPve6kAX3CQwPVkg senderAddress: type: string example: '0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4' signedTransaction: nullable: true example: null status: type: string example: CANCELLED toAmount: nullable: true example: null toCurrency: nullable: true example: null tokenAddress: type: string example: '0x55d398326f99059fF775485246999027B3197955' type: type: string example: WITHDRAW updatedAt: type: string example: '2025-09-23T15:28:02.993Z' message: type: string example: Transaction cancelled statusCode: type: number example: 200 examples: '200': value: data: address: null amlScreening: {} amount: '0.1' amountPaid: '0.1' amountUSD: '0.1' asset: address: '0x55d398326f99059fF775485246999027B3197955' createdAt: '2024-05-14T16:53:33.671Z' currency: USD decimals: 18 id: e572fb27-3e52-4dd0-8452-f9a681be03f3 isActive: true isNative: false name: Tether USD network: mainnet standard: BEP20 symbol: USDT updatedAt: '2025-04-17T03:50:19.952Z' assetSwept: null assetSweptAmount: null assetSweptAt: null assetSweptGasFee: null assetSweptHash: null assetSweptRecipientAddress: null assetSweptSenderAddress: null blockHash: null blockNumber: null blockchain: createdAt: '2024-05-14T16:53:33.106Z' derivationPath: m/44'/60'/0'/0 id: b80d3d5e-16f1-4d99-be5e-6dfcd27f89aa isActive: true isEvmCompatible: true isL2: false name: BNB smart chain slug: bnb-smart-chain symbol: bnb tokenStandard: BEP20 updatedAt: '2024-11-26T19:04:13.941Z' chainId: null confirmations: null confirmed: false createdAt: '2025-09-23T15:14:30.894Z' createdChannel: dashboard currency: USD fee: '0.00003' feeHash: >- 0xf41d394f91dfb1c07890bac1cf5d408f6c0edb526ed371b481ab46caf0acb1d2 gasFee: null gasPrice: null gasUsed: null hash: null id: 5f65c56e-58d9-4b26-a2fd-98b5b9cbd26b metadata: null network: mainnet note: ' Withdrawal of 0.1 USDT from 0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4 to 0xb55c054D8eE75224E1033e6eC775B4F62D942b43 on BNB smart chain' rate: null rateUSD: '1' reason: >- Withdrawal of 0.1 from 0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4 USDT to 0xb55c054D8eE75224E1033e6eC775B4F62D942b43 on BNB smart chain recipientAddress: '0xb55c054D8eE75224E1033e6eC775B4F62D942b43' reference: OjAhIPve6kAX3CQwPVkg senderAddress: '0xD2b6be31932E0294F2ebD14a008C3f1E05B47BC4' signedTransaction: null status: CANCELLED toAmount: null toCurrency: null tokenAddress: '0x55d398326f99059fF775485246999027B3197955' type: WITHDRAW updatedAt: '2025-09-23T15:28:02.993Z' message: Transaction cancelled statusCode: 200 components: securitySchemes: apiKey: type: apiKey name: x-api-key in: header ````