diff --git a/nl-module-base/nl-module-base-api/src/main/java/cn/code/nl/module/base/api/codegen/CodeGenApi.java b/nl-module-base/nl-module-base-api/src/main/java/cn/code/nl/module/base/api/codegen/CodeGenApi.java
new file mode 100644
index 00000000..b6a77556
--- /dev/null
+++ b/nl-module-base/nl-module-base-api/src/main/java/cn/code/nl/module/base/api/codegen/CodeGenApi.java
@@ -0,0 +1,34 @@
+package cn.code.nl.module.base.api.codegen;
+
+import cn.code.nl.framework.common.pojo.CommonResult;
+import cn.code.nl.module.base.api.codegen.dto.CodeGenerateReqDTO;
+import cn.code.nl.module.base.enums.ApiConstants;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.tags.Tag;
+import jakarta.validation.Valid;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+
+/**
+ * RPC 服务 - 编码生成
+ *
+ * @author zhouz
+ */
+@FeignClient(name = ApiConstants.NAME)
+@Tag(name = "RPC 服务 - 编码生成")
+public interface CodeGenApi {
+
+    String PREFIX = ApiConstants.PREFIX + "/code-gen";
+
+    /**
+     * 根据规则编码生成编码字符串
+     *
+     * @param reqDTO 生成请求
+     * @return 生成的编码字符串
+     */
+    @PostMapping(PREFIX + "/generate")
+    @Operation(summary = "生成编码")
+    CommonResult<String> generate(@Valid @RequestBody CodeGenerateReqDTO reqDTO);
+
+}
diff --git a/nl-module-base/nl-module-base-api/src/main/java/cn/code/nl/module/base/api/codegen/dto/CodeGenerateReqDTO.java b/nl-module-base/nl-module-base-api/src/main/java/cn/code/nl/module/base/api/codegen/dto/CodeGenerateReqDTO.java
new file mode 100644
index 00000000..a449edbd
--- /dev/null
+++ b/nl-module-base/nl-module-base-api/src/main/java/cn/code/nl/module/base/api/codegen/dto/CodeGenerateReqDTO.java
@@ -0,0 +1,27 @@
+package cn.code.nl.module.base.api.codegen.dto;
+
+import jakarta.validation.constraints.NotBlank;
+import lombok.Data;
+
+import java.util.Map;
+
+/**
+ * 编码生成请求 DTO
+ *
+ * @author zhouz
+ */
+@Data
+public class CodeGenerateReqDTO {
+
+    /**
+     * 规则编码
+     */
+    @NotBlank(message = "规则编码不能为空")
+    private String ruleCode;
+
+    /**
+     * 业务字段参数（预留，二期 BIZ_FIELD 段使用）
+     */
+    private Map<String, String> bizParams;
+
+}