diff --git a/src/api.ts b/src/api.ts
index 16b3ba95..d142dea3 100644
--- a/src/api.ts
+++ b/src/api.ts
@@ -1,4 +1,3 @@
-import { TransactionRequest } from '@ethersproject/providers'
 import {
   BridgeDefinition,
   Chain,
@@ -11,6 +10,30 @@ import {
 } from '.'
 import { ToolError } from './apiErrors'
 
+export type BigIntish = string
+
+export type TransactionRequest = {
+  to?: string
+  from?: string
+  nonce?: BigIntish
+
+  gasLimit?: BigIntish
+  gasPrice?: BigIntish
+
+  data?: string
+  value?: BigIntish
+  chainId?: number
+
+  type?: number
+  accessList?: { address: string; storageKeys: string[] }[]
+
+  maxPriorityFeePerGas?: BigIntish
+  maxFeePerGas?: BigIntish
+
+  customData?: Record<string, any>
+  ccipReadEnabled?: boolean
+}
+
 export const Orders = ['RECOMMENDED', 'FASTEST', 'CHEAPEST', 'SAFEST'] as const
 export type Order = (typeof Orders)[number]