diff --git a/packages/utils/src/altmempool/AltMempoolConfig.ts b/packages/utils/src/altmempool/AltMempoolConfig.ts
new file mode 100644
index 00000000..50ad7047
--- /dev/null
+++ b/packages/utils/src/altmempool/AltMempoolConfig.ts
@@ -0,0 +1,50 @@
+type Role = 'sender' | 'paymaster' | 'factory'
+
+type EnterOpcode = 'CALL' | 'DELEGATECALL' | 'CALLCODE' | 'STATICCALL' | 'CREATE' | 'CREATE2'
+
+export interface AltMempoolRuleExceptionBase {
+  role?: Role
+  address?: string
+  depths?: number[]
+  enterOpcode?: EnterOpcode[]
+  enterMethodSelector?: `0x${string}`
+}
+
+export interface AltMempoolRuleExceptionBannedOpcode extends AltMempoolRuleExceptionBase {
+  opcodes: string[]
+  slots: Array<`0x${string}`>
+}
+
+type RuleException = `0x${string}` | Role | AltMempoolRuleExceptionBase | AltMempoolRuleExceptionBannedOpcode
+
+export interface BaseAltMempoolRule {
+  enabled?: boolean
+  exceptions?: RuleException[]
+}
+
+// TODO: define all current rules
+type RuleERC7562 = 'erep010' | 'erep020'
+
+export interface AltMempoolConfig {
+  [mempoolId: number]: { [rule in RuleERC7562]?: BaseAltMempoolRule }
+}
+
+const config: AltMempoolConfig = {
+  1: {
+    erep010: {
+      enabled: true,
+      exceptions: [
+        'sender',
+        '0xdeadbeef',
+        {
+          depths: [3],
+          enterOpcode: ['CALL'],
+          opcodes: ['SSTORE', 'SLOAD'],
+          slots: ['0xdeadbeef']
+        }
+      ]
+    }
+  }
+}
+
+console.log(config)