diff --git a/module/catalogue/dto/output.go b/module/catalogue/dto/output.go
index 2b5369db..7a050438 100644
--- a/module/catalogue/dto/output.go
+++ b/module/catalogue/dto/output.go
@@ -29,6 +29,7 @@ type ServiceDetail struct {
 	Document         string        `json:"document"`
 	Basic            *ServiceBasic `json:"basic"`
 	APIDoc           string        `json:"api_doc"`
+	OpenAPIAddress   string        `json:"openapi_address"`
 	MCPServerAddress string        `json:"mcp_server_address"`
 	MCPAccessConfig  string        `json:"mcp_access_config"`
 }
diff --git a/module/catalogue/iml.go b/module/catalogue/iml.go
index 3d611743..bffa1294 100644
--- a/module/catalogue/iml.go
+++ b/module/catalogue/iml.go
@@ -419,6 +419,7 @@ func (i *imlCatalogueModule) ServiceDetail(ctx context.Context, sid string) (*ca
 			InvokeCount:   invokeMap[s.Id],
 		},
 		APIDoc:           apiDoc,
+		OpenAPIAddress:   fmt.Sprintf("%s/api/v1/service/apidoc/%s", strings.TrimSuffix(sitePrefix, "/"), s.Id),
 		MCPServerAddress: mcpAccessAddress,
 		MCPAccessConfig:  mcpAccessConfig,
 	}, nil