diff --git a/.changeset/loud-avocados-play.md b/.changeset/loud-avocados-play.md
new file mode 100644
index 0000000000..068c01fb9b
--- /dev/null
+++ b/.changeset/loud-avocados-play.md
@@ -0,0 +1,6 @@
+---
+"@wagmi/core": patch
+"wagmi": patch
+---
+
+Fixed issue where `prepareTransactionRequest` would internally call unsupported wallet RPC methods.
diff --git a/packages/core/src/actions/prepareTransactionRequest.test.ts b/packages/core/src/actions/prepareTransactionRequest.test.ts
index 1a40e6591c..aeb9c2ca30 100644
--- a/packages/core/src/actions/prepareTransactionRequest.test.ts
+++ b/packages/core/src/actions/prepareTransactionRequest.test.ts
@@ -26,6 +26,7 @@ test('default', async () => {
   } = request
   expect(rest).toMatchInlineSnapshot(`
     {
+      "account": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
       "chainId": 1,
       "from": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
       "to": "0x70997970c51812dc3a010c7d01b50e0d17dc79c8",
@@ -67,35 +68,6 @@ test('parameters: account', async () => {
   await disconnect(config, { connector })
 })
 
-test('parameters: connector', async () => {
-  await connect(config, { connector })
-
-  const request = await prepareTransactionRequest(config, {
-    connector,
-    to: '0x70997970c51812dc3a010c7d01b50e0d17dc79c8',
-    value: parseEther('1'),
-  })
-
-  const {
-    gas: _gas,
-    maxFeePerGas: _mfpg,
-    maxPriorityFeePerGas: _mpfpg,
-    nonce: _nonce,
-    ...rest
-  } = request
-  expect(rest).toMatchInlineSnapshot(`
-    {
-      "chainId": 1,
-      "from": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
-      "to": "0x70997970c51812dc3a010c7d01b50e0d17dc79c8",
-      "type": "eip1559",
-      "value": 1000000000000000000n,
-    }
-  `)
-
-  await disconnect(config, { connector })
-})
-
 test('behavior: local account', async () => {
   const account = privateKeyToAccount(privateKey)
 
diff --git a/packages/core/src/actions/prepareTransactionRequest.ts b/packages/core/src/actions/prepareTransactionRequest.ts
index 769e3d2b49..02eb114019 100644
--- a/packages/core/src/actions/prepareTransactionRequest.ts
+++ b/packages/core/src/actions/prepareTransactionRequest.ts
@@ -11,10 +11,7 @@ import { prepareTransactionRequest as viem_prepareTransactionRequest } from 'vie
 
 import { type Config } from '../createConfig.js'
 import { type SelectChains } from '../types/chain.js'
-import {
-  type ChainIdParameter,
-  type ConnectorParameter,
-} from '../types/properties.js'
+import { type ChainIdParameter } from '../types/properties.js'
 import {
   type Evaluate,
   type IsNarrowable,
@@ -22,7 +19,7 @@ import {
   type UnionOmit,
 } from '../types/utils.js'
 import { getAction } from '../utils/getAction.js'
-import { getConnectorClient } from './getConnectorClient.js'
+import { getAccount } from './getAccount.js'
 
 export type PrepareTransactionRequestParameters<
   config extends Config = Config,
@@ -55,8 +52,7 @@ export type PrepareTransactionRequestParameters<
       >,
       'chain'
     > &
-      ChainIdParameter<config, chainId> &
-      ConnectorParameter & {
+      ChainIdParameter<config, chainId> & {
         to: Address
       }
   >
@@ -90,10 +86,9 @@ export type PrepareTransactionRequestReturnType<
         ? request
         : never
     >
-  > &
-    ConnectorParameter & {
-      chainId: chains[key]['id']
-    }
+  > & {
+    chainId: chains[key]['id']
+  }
 }[number]
 
 export type PrepareTransactionRequestErrorType =
@@ -111,13 +106,10 @@ export async function prepareTransactionRequest<
   config: config,
   parameters: PrepareTransactionRequestParameters<config, chainId, request>,
 ): Promise<PrepareTransactionRequestReturnType<config, chainId, request>> {
-  const { account, chainId, connector, ...rest } = parameters
+  const { account: account_, chainId, ...rest } = parameters
 
-  let client
-  if (typeof account === 'object' && account.type === 'local')
-    client = config.getClient({ chainId })
-  else
-    client = await getConnectorClient(config, { account, chainId, connector })
+  const account = account_ ?? getAccount(config).address
+  const client = config.getClient({ chainId })
 
   const action = getAction(
     client,
diff --git a/packages/react/src/hooks/usePrepareTransactionRequest.test.ts b/packages/react/src/hooks/usePrepareTransactionRequest.test.ts
index d80f8660c4..7b90729dbf 100644
--- a/packages/react/src/hooks/usePrepareTransactionRequest.test.ts
+++ b/packages/react/src/hooks/usePrepareTransactionRequest.test.ts
@@ -33,6 +33,7 @@ test('default', async () => {
 
   expect(data).toMatchInlineSnapshot(`
     {
+      "account": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
       "chainId": 1,
       "from": "0xf39Fd6e51aad88F6F4ce6aB8827279cffFb92266",
       "to": "0x70997970c51812dc3a010c7d01b50e0d17dc79c8",