diff --git a/package.json b/package.json
index 27fb532..495810f 100644
--- a/package.json
+++ b/package.json
@@ -22,7 +22,7 @@
     "test": "npm run compile-test && mocha 'src/**/__tests__/*.test.ts'"
   },
   "peerDependencies": {
-    "ethers": "6.13.1"
+    "ethers": "6.14.3"
   },
   "devDependencies": {
     "@types/chai": "4.3.5",
@@ -37,11 +37,12 @@
     "eslint-config-prettier": "^8.5.0",
     "eslint-plugin-flowtype": "^8.0.3",
     "eslint-plugin-import": "^2.26.0",
-    "ethers": "6.13.1",
+    "ethers": "6.14.3",
     "madge": "6.1.0",
     "mocha": "^10.2.0",
     "ts-node": "^10.9.1",
     "tsc-alias": "^1.8.2",
     "typescript": "5.1.3"
-  }
+  },
+  "packageManager": "yarn@1.22.22"
 }
diff --git a/src/models/broadcaster.ts b/src/models/broadcaster.ts
index 9028cb1..72735cd 100644
--- a/src/models/broadcaster.ts
+++ b/src/models/broadcaster.ts
@@ -1,3 +1,4 @@
+import { Authorization } from 'ethers';
 import { TXIDVersion } from './engine';
 import {
   ChainType,
@@ -45,14 +46,37 @@ type BroadcasterRawParamsShared = {
   maxVersion: string;
 };
 
-export type BroadcasterRawParamsTransact = BroadcasterRawParamsShared & {
+export enum BroadcasterTransactRequestType {
+  Legacy = 'legacy',
+  EIP7702 = 'eip7702',
+}
+
+export type BroadcasterRawParamsTransactLegacy = BroadcasterRawParamsShared & {
+  transactType?: BroadcasterTransactRequestType.Legacy;
   to: string;
   data: string;
   minGasPrice: string;
   useRelayAdapt: boolean;
   preTransactionPOIsPerTxidLeafPerList: PreTransactionPOIsPerTxidLeafPerList;
+  authorization?: never;
 };
 
+export type BroadcasterRawParamsTransactEIP7702 = BroadcasterRawParamsShared & {
+  transactType: BroadcasterTransactRequestType.EIP7702;
+  to: string;
+  data: string;
+  // Explicit EIP-1559 fee fields. These are REQUIRED for EIP-7702 (type 4).
+  maxFeePerGas: string;
+  maxPriorityFeePerGas: string;
+  useRelayAdapt: boolean;
+  preTransactionPOIsPerTxidLeafPerList: PreTransactionPOIsPerTxidLeafPerList;
+  authorization: Authorization;
+};
+
+export type BroadcasterRawParamsTransact =
+  | BroadcasterRawParamsTransactLegacy
+  | BroadcasterRawParamsTransactEIP7702;
+
 export type BroadcasterRawParamsPreAuthorize = BroadcasterRawParamsShared & {
   gasLimit: string;
   commitmentCiphertext: CommitmentCiphertextV2 | CommitmentCiphertextV3;
diff --git a/src/models/network-config.ts b/src/models/network-config.ts
index be6783f..41d62bf 100644
--- a/src/models/network-config.ts
+++ b/src/models/network-config.ts
@@ -54,6 +54,10 @@ export type Network = {
   proxyContract: string;
   relayAdaptContract: string;
   relayAdaptHistory: string[];
+  supports7702: boolean;
+  relayAdapt7702Contract: string;
+  relayAdapt7702History: string[];
+  railgunRegistryContract: string;
   deploymentBlock: number;
   poseidonMerkleAccumulatorV3Contract: string;
   poseidonMerkleVerifierV3Contract: string;
@@ -248,6 +252,50 @@ export const RailgunPoseidonMerkleAccumulatorV3DeploymentBlock: Record<
   [NetworkName.PolygonMumbai_DEPRECATED]: 0,
 };
 
+// 7702 Adapt Deployer not yet deployed on mainnets/testnets
+export const RailgunRegistryContract: Record<NetworkName, string> = {
+  // Main nets
+  [NetworkName.Ethereum]: '',
+  [NetworkName.BNBChain]: '',
+  [NetworkName.Polygon]: '',
+  [NetworkName.Arbitrum]: '',
+
+  // Test nets
+  [NetworkName.EthereumSepolia]: '0xFe276aD6a9Be967292D7fcb74E5510a1A6796bFb',
+  [NetworkName.PolygonAmoy]: '',
+
+  // Dev only
+  [NetworkName.Hardhat]: '',
+
+  // Deprecated
+  [NetworkName.EthereumRopsten_DEPRECATED]: '',
+  [NetworkName.EthereumGoerli_DEPRECATED]: '',
+  [NetworkName.ArbitrumGoerli_DEPRECATED]: '',
+  [NetworkName.PolygonMumbai_DEPRECATED]: '',
+};
+
+export const RelayAdapt7702Contract: Record<NetworkName, string> = {
+  // Main nets
+  [NetworkName.Ethereum]: '',
+  [NetworkName.BNBChain]: '',
+  [NetworkName.Polygon]: '',
+  [NetworkName.Arbitrum]: '',
+
+  // Test nets
+  [NetworkName.EthereumSepolia]: '0x19702345c059ac86a1f17434ebE0227D62F5965f',
+  [NetworkName.PolygonAmoy]: '',
+
+  // Dev only
+  [NetworkName.Hardhat]: '',
+
+  // Deprecated
+  [NetworkName.EthereumRopsten_DEPRECATED]: '',
+  [NetworkName.EthereumGoerli_DEPRECATED]: '',
+  [NetworkName.ArbitrumGoerli_DEPRECATED]: '',
+  [NetworkName.PolygonMumbai_DEPRECATED]: '',
+};
+
+
 export const NETWORK_CONFIG: Record<NetworkName, Network> = {
   [NetworkName.Ethereum]: {
     chain: {
@@ -272,6 +320,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       '0x4025ee6512DBbda97049Bcf5AA5D38C54aF6bE8a', // V3.1 Update - Jan 2023
       '0xAc9f360Ae85469B27aEDdEaFC579Ef2d052aD405', // Upgrade Jul 2025
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.Ethereum],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.Ethereum],
     deploymentBlock: RailgunProxyDeploymentBlock[NetworkName.Ethereum],
     deploymentBlockPoseidonMerkleAccumulatorV3:
       RailgunPoseidonMerkleAccumulatorV3DeploymentBlock[NetworkName.Ethereum],
@@ -310,6 +363,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       '0x741936fb83DDf324636D3048b3E6bC800B8D9e12', // V3.1 Update - Jan 2023
       '0xF82d00fC51F730F42A00F85E74895a2849ffF2Dd', // Upgrade Jul 2025
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.BNBChain],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.BNBChain],
     deploymentBlock: RailgunProxyDeploymentBlock[NetworkName.BNBChain],
     defaultEVMGasType: EVMGasType.Type0,
     poi: {
@@ -348,6 +406,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       '0xc7FfA542736321A3dd69246d73987566a5486968', // V3.1 Update - Jan 2023
       '0xF82d00fC51F730F42A00F85E74895a2849ffF2Dd', // Upgrade Jul 2025
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.Polygon],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.Polygon],
     deploymentBlock: RailgunProxyDeploymentBlock[NetworkName.Polygon],
     defaultEVMGasType: EVMGasType.Type2,
     poi: {
@@ -384,6 +447,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       '0x5aD95C537b002770a39dea342c4bb2b68B1497aA', // Initial deployment - Feb 2023 post v3.1
       '0xB4F2d77bD12c6b548Ae398244d7FAD4ABCE4D89b', // Upgrade Jul 2025
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.Arbitrum],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.Arbitrum],
     deploymentBlock: RailgunProxyDeploymentBlock[NetworkName.Arbitrum],
     defaultEVMGasType: EVMGasType.Type2,
     poi: {
@@ -422,6 +490,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
     relayAdaptContract:
       RelayAdaptContract[NetworkName.EthereumRopsten_DEPRECATED],
     relayAdaptHistory: [''],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.EthereumRopsten_DEPRECATED],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.EthereumRopsten_DEPRECATED],
     deploymentBlock:
       RailgunProxyDeploymentBlock[NetworkName.EthereumRopsten_DEPRECATED],
     isTestnet: true,
@@ -468,6 +541,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       '0x6E9C59F042acB1577A297eDE607c21Ff284846F3', // V3.1 partial update - Jan 2023
       '0x14a57CA7C5c1AD54fB6c642f428d973fcD696ED4', // V3.1 Update - Jan 2023
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.EthereumGoerli_DEPRECATED],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.EthereumGoerli_DEPRECATED],
     deploymentBlock:
       RailgunProxyDeploymentBlock[NetworkName.EthereumGoerli_DEPRECATED],
     isTestnet: true,
@@ -512,6 +590,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
     relayAdaptHistory: [
       '0x7e3d929EbD5bDC84d02Bd3205c777578f33A214D', // Deployment - Apr 2024
     ],
+    supports7702: true,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.EthereumSepolia],  
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.EthereumSepolia],
     deploymentBlock: RailgunProxyDeploymentBlock[NetworkName.EthereumSepolia],
     isDevOnlyNetwork: true,
     isTestnet: true,
@@ -553,6 +636,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
     relayAdaptHistory: [
       '0xc340f7E17A42154674d6B50190386C9a2982D12E', // Initial deployment
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.PolygonAmoy],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.PolygonAmoy],
     deploymentBlock: RailgunProxyDeploymentBlock[NetworkName.PolygonAmoy],
     isDevOnlyNetwork: true,
     isTestnet: true,
@@ -593,6 +681,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       '0x80efF1a8939C9B6E8C61Ed5Be683Eda21088B7E6', // V3.0 Update - Nov 2022
       '0x17D36875D723Cf0dA250d404Ef4cA0aABE105837', // V3.1 Update - Jan 2023
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.PolygonMumbai_DEPRECATED],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.PolygonMumbai_DEPRECATED],
     deploymentBlock:
       RailgunProxyDeploymentBlock[NetworkName.PolygonMumbai_DEPRECATED],
     isDevOnlyNetwork: true,
@@ -638,6 +731,11 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       '0x7E77d890179Aa683ac2B9A608bd8121255CAa917', // Initial deployment (post v3.0)
       '0x3eAf99B5EDc79D833AA8B6d18F0a8dd041e13eF6', // V3.1 Update - Jan 2023
     ],
+    supports7702: false,
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.ArbitrumGoerli_DEPRECATED],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.ArbitrumGoerli_DEPRECATED],
     deploymentBlock:
       RailgunProxyDeploymentBlock[NetworkName.ArbitrumGoerli_DEPRECATED],
     isTestnet: true,
@@ -674,8 +772,13 @@ export const NETWORK_CONFIG: Record<NetworkName, Network> = {
       decimals: 18,
     },
     proxyContract: RailgunProxyContract[NetworkName.Hardhat],
+    supports7702: false,
     relayAdaptContract: RelayAdaptContract[NetworkName.Hardhat],
     relayAdaptHistory: [''],
+    relayAdapt7702Contract: RelayAdapt7702Contract[NetworkName.Hardhat],
+    relayAdapt7702History: [], // no need for history, theres a set on chain?
+    railgunRegistryContract:
+      RailgunRegistryContract[NetworkName.Hardhat],
     deploymentBlock: RailgunProxyDeploymentBlock[NetworkName.Hardhat],
     isDevOnlyNetwork: true,
     isTestnet: true,
diff --git a/src/models/response-types.ts b/src/models/response-types.ts
index 0dc1f7b..1e1ec45 100644
--- a/src/models/response-types.ts
+++ b/src/models/response-types.ts
@@ -18,12 +18,14 @@ export enum EVMGasType {
   Type0 = 0,
   Type1 = 1,
   Type2 = 2,
+  Type4 = 4,
 }
 
 export type TransactionGasDetails =
   | TransactionGasDetailsType0
   | TransactionGasDetailsType1
-  | TransactionGasDetailsType2;
+  | TransactionGasDetailsType2
+  | TransactionGasDetailsType4;
 
 export type TransactionGasDetailsType0 = {
   evmGasType: EVMGasType.Type0;
@@ -44,6 +46,13 @@ export type TransactionGasDetailsType2 = {
   maxPriorityFeePerGas: bigint;
 };
 
+export type TransactionGasDetailsType4 = {
+  evmGasType: EVMGasType.Type4;
+  gasEstimate: bigint;
+  maxFeePerGas: bigint;
+  maxPriorityFeePerGas: bigint;
+};
+
 export type FeeTokenDetails = {
   tokenAddress: string;
   feePerUnitGas: bigint;
@@ -315,3 +324,4 @@ export type CommitmentSummary = {
   commitmentCiphertext: CommitmentCiphertextV2 | CommitmentCiphertextV3;
   commitmentHash: string;
 };
+
diff --git a/src/utils/gas.ts b/src/utils/gas.ts
index a62549c..9a45bd6 100644
--- a/src/utils/gas.ts
+++ b/src/utils/gas.ts
@@ -27,7 +27,8 @@ export const calculateGasPrice = (gasDetails: TransactionGasDetails) => {
     case EVMGasType.Type1: {
       return gasDetails.gasPrice;
     }
-    case EVMGasType.Type2: {
+    case EVMGasType.Type2:
+    case EVMGasType.Type4: {
       return gasDetails.maxFeePerGas;
     }
   }
diff --git a/yarn.lock b/yarn.lock
index 0d645d0..9ac5e5e 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -186,16 +186,18 @@
   resolved "https://registry.yarnpkg.com/@types/mocha/-/mocha-10.0.1.tgz#2f4f65bb08bc368ac39c96da7b2f09140b26851b"
   integrity sha512-/fvYntiO1GeICvqbQ3doGDIP97vWmvFt83GKguJ6prmQM2iXZfFcq6YE8KteFyRtX2/h5Hf91BYvPodJKFYv5Q==
 
-"@types/node@18.15.13":
-  version "18.15.13"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-18.15.13.tgz#f64277c341150c979e42b00e4ac289290c9df469"
-  integrity sha512-N+0kuo9KgrUQ1Sn/ifDXsvg0TTleP7rIy4zOBGECxAljqvqfqpTfzx0Q1NUedOixRMBfe2Whhb056a42cWs26Q==
-
 "@types/node@20.3.1":
   version "20.3.1"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-20.3.1.tgz#e8a83f1aa8b649377bb1fb5d7bac5cb90e784dfe"
   integrity sha512-EhcH/wvidPy1WeML3TtYFGR83UzjxeWRen9V402T8aUGYsCHOmfoisV3ZSg03gAFIbLq8TnWOJ0f4cALtnSEUg==
 
+"@types/node@22.7.5":
+  version "22.7.5"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-22.7.5.tgz#cfde981727a7ab3611a481510b473ae54442b92b"
+  integrity sha512-jML7s2NAzMWc//QSJ1a3prpk78cOPchGvXJsC3C6R6PSMoooztvRVQEz89gmBTBY1SPMaqo5teB4uNHPdetShQ==
+  dependencies:
+    undici-types "~6.19.2"
+
 "@types/semver@^7.3.12":
   version "7.5.0"
   resolved "https://registry.yarnpkg.com/@types/semver/-/semver-7.5.0.tgz#591c1ce3a702c45ee15f47a42ade72c2fd78978a"
@@ -1131,17 +1133,17 @@ esutils@^2.0.2:
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
   integrity sha512-kVscqXk4OCp68SZ0dkgEKVi6/8ij300KBWTJq32P/dYeWTSwK41WyTxalN1eRmA5Z9UU/LX9D7FWSmV9SAYx6g==
 
-ethers@6.13.1:
-  version "6.13.1"
-  resolved "https://registry.yarnpkg.com/ethers/-/ethers-6.13.1.tgz#2b9f9c7455cde9d38b30fe6589972eb083652961"
-  integrity sha512-hdJ2HOxg/xx97Lm9HdCWk949BfYqYWpyw4//78SiwOLgASyfrNszfMUNB2joKjvGUdwhHfaiMMFFwacVVoLR9A==
+ethers@6.14.3:
+  version "6.14.3"
+  resolved "https://registry.yarnpkg.com/ethers/-/ethers-6.14.3.tgz#7c4443c165ee59b2964e691600fd4586004b2000"
+  integrity sha512-qq7ft/oCJohoTcsNPFaXSQUm457MA5iWqkf1Mb11ujONdg7jBI6sAOrHaTi3j0CBqIGFSCeR/RMc+qwRRub7IA==
   dependencies:
     "@adraffy/ens-normalize" "1.10.1"
     "@noble/curves" "1.2.0"
     "@noble/hashes" "1.3.2"
-    "@types/node" "18.15.13"
+    "@types/node" "22.7.5"
     aes-js "4.0.0-beta.5"
-    tslib "2.4.0"
+    tslib "2.7.0"
     ws "8.17.1"
 
 fast-deep-equal@^3.1.1, fast-deep-equal@^3.1.3:
@@ -2571,10 +2573,10 @@ tsconfig-paths@^3.10.1, tsconfig-paths@^3.14.1:
     minimist "^1.2.6"
     strip-bom "^3.0.0"
 
-tslib@2.4.0:
-  version "2.4.0"
-  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.4.0.tgz#7cecaa7f073ce680a05847aa77be941098f36dc3"
-  integrity sha512-d6xOpEDfsi2CZVlPQzGeux8XMwLT9hssAsaPYExaQMuYskwb+x1x7J371tWlbBdWHroy99KnVB6qIkUbs5X3UQ==
+tslib@2.7.0:
+  version "2.7.0"
+  resolved "https://registry.yarnpkg.com/tslib/-/tslib-2.7.0.tgz#d9b40c5c40ab59e8738f297df3087bf1a2690c01"
+  integrity sha512-gLXCKdN1/j47AiHiOkJN69hJmcbGTHI0ImLmbYLHykhgeN0jVGola9yVjFgzCUklsZQMW55o+dW7IXv3RCXDzA==
 
 tslib@^1.8.1:
   version "1.14.1"
@@ -2637,6 +2639,11 @@ unbox-primitive@^1.0.2:
     has-symbols "^1.0.3"
     which-boxed-primitive "^1.0.2"
 
+undici-types@~6.19.2:
+  version "6.19.8"
+  resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-6.19.8.tgz#35111c9d1437ab83a7cdc0abae2f26d88eda0a02"
+  integrity sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==
+
 uniq@^1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/uniq/-/uniq-1.0.1.tgz#b31c5ae8254844a3a8281541ce2b04b865a734ff"