> ## Documentation Index > Fetch the complete documentation index at: https://docs.dfns.co/llms.txt > Use this file to discover all available pages before exploring further. # Speed Up Transaction > Speeds up a transaction by creating a replacement transaction with the same parameters but higher gas fees. This endpoint only works for: - EVM-compatible networks (Ethereum, Polygon, BSC, etc.) - Transactions that are in 'Broadcasted' status (already submitted to blockchain, but not confirmed yet) The speed-up works by: 1. Extracting the parameters from the original broadcasted transaction 2. Creating a new transaction with the same nonce, recipient, value, and data 3. Using higher gas fees (maximum between 10% bump or Fast network fees) 4. Replacing the original transaction in the mempool Note: Success is not guaranteed as it depends on network conditions and whether the original transaction has already been mined. #### Authentication ✅ Organization User (`CustomerEmployee`)\ ✅ Delegated User (`EndUser`)\ ✅ Service Account #### Required Permissions `Wallets:Transactions:Create`: Always required.\ `Wallets:Transactions:Read`: Always required. ## OpenAPI ````yaml /openapi.yaml post /wallets/{walletId}/transactions/{transactionId}/speed-up openapi: 3.1.0 info: version: 1.795.3 title: Dfns servers: - url: https://api.dfns.io description: Default - Europe - url: https://api.uae.dfns.io description: UAE - url: https://api.dfns.ninja description: Staging security: [] paths: /wallets/{walletId}/transactions/{transactionId}/speed-up: post: tags: - Wallets summary: Speed Up Transaction description: >- Speeds up a transaction by creating a replacement transaction with the same parameters but higher gas fees. This endpoint only works for: - EVM-compatible networks (Ethereum, Polygon, BSC, etc.) - Transactions that are in 'Broadcasted' status (already submitted to blockchain, but not confirmed yet) The speed-up works by: 1. Extracting the parameters from the original broadcasted transaction 2. Creating a new transaction with the same nonce, recipient, value, and data 3. Using higher gas fees (maximum between 10% bump or Fast network fees) 4. Replacing the original transaction in the mempool Note: Success is not guaranteed as it depends on network conditions and whether the original transaction has already been mined. parameters: - schema: type: string minLength: 1 maxLength: 64 description: Wallet id. required: true description: Wallet id. name: walletId in: path - schema: type: string minLength: 1 maxLength: 64 description: Transaction id. required: true description: Transaction id. name: transactionId in: path responses: '200': description: Success content: application/json: schema: $ref: '#/components/schemas/TransactionRequest' security: - authenticationToken: [] userActionSignature: [] components: schemas: TransactionRequest: type: object properties: id: type: string minLength: 1 maxLength: 64 pattern: ^tx-[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{14,16}$ description: Transaction id. example: tx-583hu-sp2p7-slvb9nqpa3hd8bus walletId: type: string minLength: 1 maxLength: 64 pattern: ^wa-[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{14,16}$ description: Wallet id. example: wa-5pfuu-9euek-h0odgb6snva8ph3k network: $ref: '#/components/schemas/Network' requester: $ref: '#/components/schemas/Requester' requestBody: oneOf: - type: object properties: kind: type: string enum: - Transaction transaction: anyOf: - type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ - type: object properties: {} description: >- The unsigned hex encoded transaction or JSON transactions for compatible networks. externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - transaction additionalProperties: false description: > Signs an unsigned transaction and broadcasts it to chain. For EVM transactions, you may use JSON objects: | Field | Description | Type - Optional | |----------------------|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|------------------------------| | type | Ethereum transaction type. 0 for legacy transaction; 2 for EIP-1559 transaction; 4 for EIP-7702 transaction. Default is 2 if undefined. | Integer (optional) | | to | The destination address or target contract. Leave undefined when the transaction is a contract deployment. | String (optional) | | value | The amount of native tokens to transfer in minimum denomination. | String (optional) | | data | ABI encoded function call data in hex format. Can also be the encoded smart contract data when the transaction is a contract deployment. | String (optional) | | nonce | The transaction number to guarantee idempotency. If omitted, it will be provided automatically. Note the same nonce can be submitted multiple times with a higher maxFeePerGas to "overwrite" existing transactions in the mempool. | Integer or String (optional) | | gasLimit | The maximum amount of gas that can be spent for executing the transaction. If omitted, it will be calculated automatically. | String (optional) | | gasPrice | The amount of per unit gas. Only valid for a type 0 legacy transaction. If omitted, it will be calculated automatically. | String (optional) | | maxFeePerGas | The maximum amount of per unit gas willing to be paid for the transaction. Valid for type 2 and type 4 transactions. If omitted, it will be calculated automatically. | String (optional) | | maxPriorityFeePerGas | The maximum amount of per unit gas to be included as a tip to the validator. Valid for type 2 and type 4 transactions. If omitted, it will be calculated automatically. | String (optional) | | authorizationList | A list that indicates what code the signer of each authorization desires to execute in the context of their EOA. Only valid for type 4 transaction. | Authorization (optional) | For Starknet transactions, you may use invocation request objects (https://github.com/starkware-libs/starknet-specs/blob/v0.8.1/api/starknet_api_openrpc.json#L2621): | Field | Description | Type - Optional | |-------------------------------|-----------------------------------------------------------------------------------------------------|----------------------------------| | calldata | **Array** of encoded function call parameters | **Array of Strings** (required) | | nonce | Transaction nonce in hex format | String (required) | | version | Transaction version in hex format. Typically "0x3" for current transactions | String (required) | | resourceBounds | Gas bounds for L1, L2, and L1 data gas | Object (required) | | ↳ resourceBounds.l1Gas | L1 gas configuration with maxAmount and maxPricePerUnit | Object (required) | | ↳ resourceBounds.l2Gas | L2 gas configuration with maxAmount and maxPricePerUnit | Object (required) | | ↳ resourceBounds.l1DataGas | L1 data gas configuration with maxAmount and maxPricePerUnit | Object (required) | | tip | Transaction tip in hex format. Typically "0x0" | String (required) | | paymasterData | Paymaster data array | Array of Strings (required) | | accountDeploymentData | Account deployment data array | Array of Strings (required) | | nonceDataAvailabilityMode | Data availability mode for nonce. Typically "L1" for now | String (required) | | feeDataAvailabilityMode | Data availability mode for fee. Typically "L1" for now | String (required) | For Concordium transactions, you may use JSON objects (from https://github.com/Concordium/concordium-node-sdk-js/blob/sdk/12.0.0-alpha.3/packages/sdk/src/transactions/Transaction.ts#L102) | Field | Description | Type - Optional |----------------------------------|--------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------| | Header | Transaction header for the intermediary state of account transactions, i.e. prior to being signing. | Object (required) | | ↳ Header.executionEnergyAmount | The destination address or target contract. Leave undefined when the transaction is a contract deployment. | String/Number/BigInt (required) | | ↳ Header.numSignatures | The number of signatures the transaction can hold. If "undefined", this will be defined at the time of signing | Integer (optional) | | ↳ Header.sender | The account address that is source of this transaction | String (optional) | | ↳ Header.nonce | The account nonce | String/Number/BigInt (optional) | | ↳ Header.expiry | expiration of the transaction | Integer (optional) | | Payload | The transaction account payload in JSON format (https://github.com/Concordium/concordium-node-sdk-js/blob/main/packages/sdk/src/accountTransactions.ts#L646) | Object (required) | ```json { "kind": "Transaction", "transaction": { "to": "0x00fb58432ef9d418bf6688bcf0a226d2fcaa18e2", "data": "0x40d097c3000000000000000000000000d2f77f85a50cdd650ca562f3a180284e1d5b4934", "maxFeePerGas": "1626000000000", "maxPriorityFeePerGas": "1332000000000" } } ``` ```json { "kind": "Transaction", "transaction": { "type": "INVOKE", "calldata": [ "1", "2009894490435840142178314390393166646092438090257831307886760648929397478285", "232670485425082704932579856502088130646006032362877466777181098476241604910", "3", "296727860213112272332383824629975240127004024814636931420022890499591637514", "1", "0" ], "nonce": "0x51", "version": "0x3", "resourceBounds": { "l1Gas": { "maxAmount": "0x0", "maxPricePerUnit": "0x239a01ff6e6c" }, "l2Gas": { "maxAmount": "0x1694a0", "maxPricePerUnit": "0x10c388d00" }, "l1DataGas": { "maxAmount": "0x120", "maxPricePerUnit": "0x98e8" } }, "tip": "0x0", "paymasterData": [], "accountDeploymentData": [], "nonceDataAvailabilityMode": "L1", "feeDataAvailabilityMode": "L1", } } ``` ```json { "kind": "Transaction", "transaction": { "header": { "sender": undefined, "nonce": undefined, "expiry": undefined, "executionEnergyAmount": 300 }, "payload": { "type": "transferWithMemo", "toAddress": "4HhAcToZs6rtxGcgsBRS3VcjeAECPTTSTFVUKS6rBSVEZAPL6d", "memo": "000968656c6c6f20636364", "amount": "1" } } } ``` title: Transaction - type: object properties: kind: type: string enum: - Psbt psbt: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ description: The hex encoded PSBT. externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - psbt additionalProperties: false description: Signs a partially signed Bitcoin / Litecoin transaction. title: PSBT - type: object properties: kind: type: string enum: - SignDocDirect signDoc: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - signDoc additionalProperties: false description: >- Signs an unsigned transaction using [sign mode direct](https://docs.cosmos.network/main/learn/advanced/transactions#sign_mode_direct-preferred). title: SignDocDirect - type: object properties: kind: type: string enum: - UserOperations userOperations: type: array items: type: object properties: to: type: string pattern: ^0x[0-9a-fA-F]{40}$ description: The destination address or target contract. value: type: string pattern: ^\d+$ description: >- The amount of native tokens to transfer in minimum denomination. data: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ description: ABI encoded function call data in hex format. required: - to feeSponsorId: type: string minLength: 1 maxLength: 64 pattern: ^fs-[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{14,16}$ description: >- A fee sponsor id to sponsor the transaction fee by another wallet. (read more [here](https://docs.dfns.co/features/fee-sponsors)) example: fs-5vqdl-gliqk-b4rfukqauov1sp7j externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - userOperations - feeSponsorId additionalProperties: false description: >- Signs one or more user operations and broadcasts to chain using a sponsored transaction. Used for invoking arbitrary smart contract calls, including batch operations, with a [fee sponsor](https://docs.dfns.co/features/fee-sponsors). Can only be used with a fee sponsor. Unsponsored user operations are not supported. title: EVM Sponsored transaction - type: object properties: kind: type: string enum: - FunctionCall call: type: object properties: {} description: Function call arguments externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - call additionalProperties: false description: Calls an on-chain function that mutates state. title: Function Call - type: object properties: kind: type: string enum: - TransferPreapproval externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind additionalProperties: false description: Enable canton coin auto approval. title: Canton Transfer Preapproval - type: object properties: kind: type: string enum: - Evm to: type: string pattern: ^0x[0-9a-fA-F]{40}$ value: anyOf: - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ data: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ nonce: anyOf: - type: integer minimum: 0 - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ description: The current nonce of the signer EOA. gasLimit: anyOf: - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind additionalProperties: false description: >- Deprecated. Only support type 2 transactions. Use the new JSON format with `Transaction` kind instead which has support for legacy and type 4 transactions. title: EVM Transaction - type: object properties: kind: type: string enum: - Eip1559 to: type: string pattern: ^0x[0-9a-fA-F]{40}$ value: anyOf: - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ data: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ nonce: anyOf: - type: integer minimum: 0 - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ gasLimit: anyOf: - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ maxFeePerGas: anyOf: - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ maxPriorityFeePerGas: anyOf: - type: string pattern: ^\d+$ - type: string pattern: ^0x[0-9a-fA-F]*$ externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind additionalProperties: false description: >- Deprecated. Only support type 2 transactions. Use the new JSON format with `Transaction` kind instead which has support for legacy and type 4 transactions. title: EVM EIP-1559 - type: object properties: kind: type: string enum: - SettleOffer txHash: type: string decision: type: string enum: - Accept - Reject externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - txHash - decision additionalProperties: false description: Transaction for accepting or refusing a transfer offer. title: Offer Settlement - type: object properties: kind: type: string enum: - ActivateAccount args: type: object properties: {} externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind additionalProperties: false description: Transaction for activating an account after creation. title: Account Activation - type: object properties: kind: type: string enum: - CancelTransaction txHash: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ signedTx: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - signedTx additionalProperties: false description: Transaction cancelling a previously sent transaction. title: Transaction Cancellation - type: object properties: kind: type: string enum: - SpeedUpTransaction txHash: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ signedTx: type: string pattern: ^(0x)?([0-9a-fA-F][0-9a-fA-F])*$ externalId: type: string minLength: 1 maxLength: 50 description: >- A unique ID from your system. It can be leveraged to be used as an idempotency key (read more [here](https://docs.dfns.co/api-reference/idempotency)). required: - kind - txHash - signedTx additionalProperties: false description: Transaction speeding up a previously sent transaction. title: Transaction Speed Up status: type: string enum: - Pending - Executing - Broadcasted - Confirmed - Failed - Rejected reason: type: string txHash: type: string fee: type: string approvalId: type: string minLength: 1 maxLength: 64 pattern: ^ap-[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{14,16}$ example: ap-2a9in-tt2a1-983lho480p35ejd0 dateRequested: type: string format: date-time description: >- [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date (must be UTC). When the transaction was requested. example: '2023-04-14T20:41:28.715Z' datePolicyResolved: type: string format: date-time description: >- [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date (must be UTC). When the transaction was approved by policy reviewers. example: '2023-04-14T20:41:28.715Z' dateBroadcasted: type: string format: date-time description: >- [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date (must be UTC). When the transaction was broadcasted to the blockchain. example: '2023-04-14T20:41:28.715Z' dateConfirmed: type: string format: date-time description: >- [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601) date (must be UTC). When the transaction was confirmed on chain. example: '2023-04-14T20:41:28.715Z' externalId: type: string required: - id - walletId - network - requester - requestBody - status - dateRequested Network: type: string title: Network enum: - Algorand - AlgorandTestnet - Aptos - AptosTestnet - ArbitrumOne - ArbitrumSepolia - ArcTestnet - AvalancheC - AvalancheCFuji - BabylonGenesis - BabylonTestnet5 - Base - BaseSepolia - Berachain - BerachainBepolia - Bitcoin - BitcoinSignet - BitcoinTestnet3 - BitcoinCash - Bob - BobSepolia - Bsc - BscTestnet - Canton - CantonTestnet - Cardano - CardanoPreprod - Concordium - ConcordiumTestnet - Celo - CeloAlfajores - Codex - CodexSepolia - CosmosHub4 - CosmosIcsTestnet - Dogecoin - DogecoinTestnet - Ethereum - EthereumClassic - EthereumClassicMordor - EthereumSepolia - EthereumHolesky - EthereumHoodi - FantomOpera - FantomTestnet - FlareC - FlareCCoston2 - FlowEvm - FlowEvmTestnet - Hedera - HederaTestnet - Ink - InkSepolia - InternetComputer - Ion - IonTestnet - Iota - IotaTestnet - Kaspa - Kusama - KusamaAssetHub - Litecoin - LitecoinTestnet - Near - NearTestnet - Optimism - OptimismSepolia - Origyn - Plasma - PlasmaTestnet - Plume - PlumeSepolia - Paseo - PaseoAssetHub - Polkadot - PolkadotAssetHub - Polygon - PolygonAmoy - Polymesh - PolymeshTestnet - Race - RaceSepolia - SeiAtlantic2 - SeiPacific1 - Solana - SolanaDevnet - Starknet - StarknetSepolia - Stellar - StellarTestnet - Sui - SuiTestnet - Tezos - TezosGhostnet - Tempo - TempoModerato - Tsc - TscTestnet1 - Ton - TonTestnet - Tron - TronNile - Westend - WestendAssetHub - Xdc - XdcApothem - XLayer - XLayerSepolia - XrpLedger - XrpLedgerTestnet Requester: type: object properties: userId: type: string minLength: 1 maxLength: 64 pattern: ^us-[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{14,16}$ description: User id. example: us-6b58p-r53sr-rlrd3l5cj3uc4ome tokenId: type: string minLength: 1 maxLength: 64 pattern: ^to-[a-z0-9]{5}-[a-z0-9]{5}-[a-z0-9]{14,16}$ description: Token id. example: to-202a0-cdo33-o65mbt6q758lvvnt required: - userId description: The user who initiated the request. securitySchemes: authenticationToken: type: http scheme: bearer bearerFormat: JWT description: >- **Bearer Token:** Used to authenticate API requests. More details how to generate the token: [Authentication flows](https://docs.dfns.co/api-reference/auth/login-flows) userActionSignature: type: apiKey in: header name: X-DFNS-USERACTION description: >- **User Action Signature:** Used to sign the change-inducing API requests. More details how to generate the token: [User Action Signing flows](https://docs.dfns.co/api-reference/auth/signing-flows) ````