diff --git a/relay/channel/anthropic/adaptor.go b/relay/channel/anthropic/adaptor.go
index 4b873715..b5359351 100644
--- a/relay/channel/anthropic/adaptor.go
+++ b/relay/channel/anthropic/adaptor.go
@@ -20,7 +20,9 @@ func (a *Adaptor) Init(meta *util.RelayMeta) {
 }
 
 func (a *Adaptor) GetRequestURL(meta *util.RelayMeta) (string, error) {
-	return fmt.Sprintf("%s/v1/complete", meta.BaseURL), nil
+	// https://docs.anthropic.com/claude/reference/messages_post
+	// anthopic migrate to Message API
+	return fmt.Sprintf("%s/v1/messages", meta.BaseURL), nil
 }
 
 func (a *Adaptor) SetupRequestHeader(c *gin.Context, req *http.Request, meta *util.RelayMeta) error {