diff --git a/src/client/client.ts b/src/client/client.ts
index a881606..ea3ae90 100644
--- a/src/client/client.ts
+++ b/src/client/client.ts
@@ -35,10 +35,32 @@ interface ClientConfig {
 
 const getCustomTransportConfig = (config: ClientConfig, chainConfig: GenLayerChain) => {
   const isAddress = typeof config.account !== "object";
+  const providerMethods = new Set<string>([
+    "eth_chainId",
+    "eth_accounts",
+    "eth_requestAccounts",
+    "eth_sendTransaction",
+    "eth_sign",
+    "eth_signTypedData",
+    "eth_signTypedData_v4",
+    "personal_sign",
+    "wallet_addEthereumChain",
+    "wallet_getPermissions",
+    "wallet_requestPermissions",
+    "wallet_switchEthereumChain",
+  ]);
 
   return {
     async request({method, params = []}: {method: string; params: any[]}) {
-      if (method.startsWith("eth_") && isAddress) {
+      const shouldUseProvider =
+        isAddress &&
+        (
+          providerMethods.has(method) ||
+          method.startsWith("wallet_") ||
+          method.endsWith("_signTypedData") ||
+          method.endsWith("_signTypedData_v4")
+        );
+      if (shouldUseProvider) {
         const provider = config.provider || (typeof window !== "undefined" ? window.ethereum : undefined);
         if (provider) {
           try {
diff --git a/tests/client.test.ts b/tests/client.test.ts
index 9b242f7..a5359ad 100644
--- a/tests/client.test.ts
+++ b/tests/client.test.ts
@@ -195,3 +195,125 @@ describe("Client Overrides", () => {
     ]);
   });
 });
+
+describe("Provider routing", () => {
+  beforeEach(() => {
+    mockFetch.mockReset();
+
+    mockFetch.mockImplementation(async (_url, options) => {
+      const bodyString = typeof options?.body === "string" ? options.body : "{}";
+      const body = JSON.parse(bodyString) as {method?: string};
+
+      if (body.method === "sim_getConsensusContract") {
+        return {
+          ok: true,
+          json: async () => ({
+            result: {
+              address: "0x0000000000000000000000000000000000000001",
+              abi: [],
+            },
+          }),
+        };
+      }
+
+      if (body.method === "eth_getTransactionByHash") {
+        return {
+          ok: true,
+          json: async () => ({
+            result: {
+              hash: "0x" + "11".repeat(32),
+              status: "FINALIZED",
+              from_address: "0x" + "22".repeat(20),
+              to_address: "0x" + "33".repeat(20),
+              type: 2,
+              nonce: 0,
+              value: 0,
+              gaslimit: 0,
+              r: 0,
+              s: 0,
+              v: 0,
+              created_at: new Date(0).toISOString(),
+              data: {calldata: ""},
+              consensus_data: {
+                leader_receipt: [{execution_result: "SUCCESS"}],
+                validators: [],
+                votes: {},
+              },
+            },
+          }),
+        };
+      }
+
+      return {
+        ok: true,
+        json: async () => ({result: null}),
+      };
+    });
+  });
+
+  it("routes eth_sendTransaction via provider for injected accounts", async () => {
+    const providerRequest = vi.fn().mockResolvedValue("0x" + "aa".repeat(32));
+
+    const client = createClient({
+      chain: localnet,
+      account: "0x65e03a3e916CF1dC92d3C8E8186a89CfAB0D2bc2",
+      provider: {request: providerRequest} as any,
+    });
+
+    const txHash = await client.request({
+      method: "eth_sendTransaction",
+      params: [{from: "0x65e03a3e916CF1dC92d3C8E8186a89CfAB0D2bc2"}],
+    });
+
+    expect(txHash).toBe("0x" + "aa".repeat(32));
+    expect(providerRequest).toHaveBeenCalledWith({
+      method: "eth_sendTransaction",
+      params: [{from: "0x65e03a3e916CF1dC92d3C8E8186a89CfAB0D2bc2"}],
+    });
+  });
+
+  it("routes eth_getTransactionByHash to RPC fetch (not provider)", async () => {
+    const providerRequest = vi.fn().mockResolvedValue(null);
+
+    const client = createClient({
+      chain: localnet,
+      account: "0x65e03a3e916CF1dC92d3C8E8186a89CfAB0D2bc2",
+      provider: {request: providerRequest} as any,
+    });
+
+    const transaction = await client.request({
+      method: "eth_getTransactionByHash",
+      params: ["0x" + "11".repeat(32)],
+    });
+
+    expect(transaction).toMatchObject({
+      hash: "0x" + "11".repeat(32),
+      status: "FINALIZED",
+    });
+    expect(providerRequest).not.toHaveBeenCalled();
+    expect(
+      mockFetch.mock.calls.some(call => {
+        const body = JSON.parse(call[1]?.body as string) as {method?: string};
+        return body.method === "eth_getTransactionByHash";
+      }),
+    ).toBe(true);
+  });
+
+  it("routes eth_chainId via provider for injected accounts", async () => {
+    const providerRequest = vi.fn().mockResolvedValue("0xf22f");
+
+    const client = createClient({
+      chain: localnet,
+      account: "0x65e03a3e916CF1dC92d3C8E8186a89CfAB0D2bc2",
+      provider: {request: providerRequest} as any,
+    });
+
+    const chainId = await client.request({method: "eth_chainId"});
+
+    expect(chainId).toBe("0xf22f");
+    expect(providerRequest).toHaveBeenCalledWith({
+      method: "eth_chainId",
+      params: [],
+    });
+  });
+});