diff --git a/erpnext-mcp/src/constants.ts b/erpnext-mcp/src/constants.ts
new file mode 100644
index 0000000..1bdbb73
--- /dev/null
+++ b/erpnext-mcp/src/constants.ts
@@ -0,0 +1,7 @@
+export const CHARACTER_LIMIT = 25000;
+export const DEFAULT_PAGE_SIZE = 20;
+export const MAX_PAGE_SIZE = 100;
+
+// ERPNext API base paths
+export const RESOURCE_PATH = "/api/resource";
+export const METHOD_PATH = "/api/method";