diff --git a/ethrpc/ethrpc.go b/ethrpc/ethrpc.go
index f1f3c16a..91ab8584 100644
--- a/ethrpc/ethrpc.go
+++ b/ethrpc/ethrpc.go
@@ -26,6 +26,7 @@ type Provider struct {
 	nodeURL    string
 	httpClient httpClient
 	br         breaker.Breaker
+	jwtToken   string // optional
 
 	chainID *big.Int
 	// cache   cachestore.Store[[]byte] // NOTE: unused for now
@@ -90,6 +91,10 @@ func (p *Provider) Do(ctx context.Context, calls ...Call) ([]byte, error) {
 	req = req.WithContext(ctx)
 	req.Header.Set("Content-Type", "application/json")
 
+	if p.jwtToken != "" {
+		req.Header.Set("Authorization", fmt.Sprintf("BEARER %s", p.jwtToken))
+	}
+
 	res, err := p.httpClient.Do(req)
 	if err != nil {
 		return nil, superr.Wrap(ErrRequestFail, fmt.Errorf("failed to send request: %w", err))
@@ -101,7 +106,7 @@ func (p *Provider) Do(ctx context.Context, calls ...Call) ([]byte, error) {
 		return nil, superr.Wrap(ErrRequestFail, fmt.Errorf("failed to read resposne body: %w", err))
 	}
 
-	if res.StatusCode < 200 || res.StatusCode > 299 {
+	if (res.StatusCode < 200 || res.StatusCode > 299) && res.StatusCode != 401 {
 		if len(body) > 100 {
 			body = body[:100]
 		}
diff --git a/ethrpc/ethrpc_test.go b/ethrpc/ethrpc_test.go
index 354d7bf5..1d5f6a39 100644
--- a/ethrpc/ethrpc_test.go
+++ b/ethrpc/ethrpc_test.go
@@ -193,3 +193,13 @@ func TestRaw(t *testing.T) {
 		require.Empty(t, payload)
 	}
 }
+
+// func TestJWTAuth(t *testing.T) {
+// 	p, err := ethrpc.NewProvider("https://dev-nodes.sequence.app/polygon", ethrpc.WithJWTAuthorization("xx"))
+// 	require.NoError(t, err)
+
+// 	block, err := p.BlockByNumber(context.Background(), big.NewInt(1_000_000))
+// 	require.NoError(t, err)
+// 	require.NotNil(t, block)
+// 	require.Equal(t, uint64(1_000_000), block.NumberU64())
+// }
diff --git a/ethrpc/option.go b/ethrpc/option.go
index 1945e0e9..90120bcf 100644
--- a/ethrpc/option.go
+++ b/ethrpc/option.go
@@ -36,3 +36,9 @@ func WithBreaker(br breaker.Breaker) Option {
 // 		p.cache = cache
 // 	}
 // }
+
+func WithJWTAuthorization(jwtToken string) Option {
+	return func(p *Provider) {
+		p.jwtToken = jwtToken
+	}
+}