diff --git a/packages/api/src/app.ts b/packages/api/src/app.ts
index 5de36eaa..dfedc702 100644
--- a/packages/api/src/app.ts
+++ b/packages/api/src/app.ts
@@ -9,6 +9,7 @@ import logger from "./logger";
 import {
   BundlerRPCMethods,
   CustomRPCMethods,
+  HttpStatus,
   RedirectedRPCMethods,
 } from "./constants";
 import { EthAPI, DebugAPI, Web3API, RedirectAPI } from "./modules";
@@ -139,9 +140,9 @@ export class ApiApp {
       if (this.redirectRpc && method in RedirectedRPCMethods) {
         const body = await redirectApi.redirect(method, params);
         if (body.error) {
-          return res.status(200).send({ ...body, id });
+          return res.status(HttpStatus.OK).send({ ...body, id });
         }
-        return res.status(200).send({ jsonrpc, id, ...body });
+        return res.status(HttpStatus.OK).send({ jsonrpc, id, ...body });
       }
 
       if (result === undefined) {
@@ -200,7 +201,7 @@ export class ApiApp {
           case CustomRPCMethods.skandha_config:
             result = await skandhaApi.getConfig();
             // skip hexlify for this particular rpc
-            return res.status(200).send({
+            return res.status(HttpStatus.OK).send({
               jsonrpc,
               id,
               result,
@@ -214,7 +215,7 @@ export class ApiApp {
       }
 
       result = deepHexlify(result);
-      return res.status(200).send({
+      return res.status(HttpStatus.OK).send({
         jsonrpc,
         id,
         result,
diff --git a/packages/api/src/constants.ts b/packages/api/src/constants.ts
index e9631e72..019f59fe 100644
--- a/packages/api/src/constants.ts
+++ b/packages/api/src/constants.ts
@@ -61,3 +61,54 @@ export const RedirectedRPCMethods = {
   eth_maxPriorityFeePerGas: "eth_maxPriorityFeePerGas",
   eth_sendRawTransaction: "eth_sendRawTransaction",
 };
+
+export enum HttpStatus {
+  CONTINUE = 100,
+  SWITCHING_PROTOCOLS = 101,
+  PROCESSING = 102,
+  EARLYHINTS = 103,
+  OK = 200,
+  CREATED = 201,
+  ACCEPTED = 202,
+  NON_AUTHORITATIVE_INFORMATION = 203,
+  NO_CONTENT = 204,
+  RESET_CONTENT = 205,
+  PARTIAL_CONTENT = 206,
+  AMBIGUOUS = 300,
+  MOVED_PERMANENTLY = 301,
+  FOUND = 302,
+  SEE_OTHER = 303,
+  NOT_MODIFIED = 304,
+  TEMPORARY_REDIRECT = 307,
+  PERMANENT_REDIRECT = 308,
+  BAD_REQUEST = 400,
+  UNAUTHORIZED = 401,
+  PAYMENT_REQUIRED = 402,
+  FORBIDDEN = 403,
+  NOT_FOUND = 404,
+  METHOD_NOT_ALLOWED = 405,
+  NOT_ACCEPTABLE = 406,
+  PROXY_AUTHENTICATION_REQUIRED = 407,
+  REQUEST_TIMEOUT = 408,
+  CONFLICT = 409,
+  GONE = 410,
+  LENGTH_REQUIRED = 411,
+  PRECONDITION_FAILED = 412,
+  PAYLOAD_TOO_LARGE = 413,
+  URI_TOO_LONG = 414,
+  UNSUPPORTED_MEDIA_TYPE = 415,
+  REQUESTED_RANGE_NOT_SATISFIABLE = 416,
+  EXPECTATION_FAILED = 417,
+  I_AM_A_TEAPOT = 418,
+  MISDIRECTED = 421,
+  UNPROCESSABLE_ENTITY = 422,
+  FAILED_DEPENDENCY = 424,
+  PRECONDITION_REQUIRED = 428,
+  TOO_MANY_REQUESTS = 429,
+  INTERNAL_SERVER_ERROR = 500,
+  NOT_IMPLEMENTED = 501,
+  BAD_GATEWAY = 502,
+  SERVICE_UNAVAILABLE = 503,
+  GATEWAY_TIMEOUT = 504,
+  HTTP_VERSION_NOT_SUPPORTED = 505,
+}
diff --git a/packages/api/src/server.ts b/packages/api/src/server.ts
index 2bef36f0..dea6c8ff 100644
--- a/packages/api/src/server.ts
+++ b/packages/api/src/server.ts
@@ -3,6 +3,7 @@ import cors from "@fastify/cors";
 import RpcError from "types/lib/api/errors/rpc-error";
 import { ServerConfig } from "types/lib/api/interfaces";
 import logger from "./logger";
+import { HttpStatus } from "./constants";
 
 export class Server {
   constructor(private app: FastifyInstance, private config: ServerConfig) {
@@ -70,16 +71,18 @@ export class Server {
           data: err.data,
           code: err.code,
         };
-        return res.status(200).send({
+        return res.status(HttpStatus.OK).send({
           jsonrpc: body.jsonrpc,
           id: body.id,
           error,
         });
       }
 
-      return res.status(err.statusCode ?? 500).send({
-        error: "Unexpected behaviour",
-      });
+      return res
+        .status(err.statusCode ?? HttpStatus.INTERNAL_SERVER_ERROR)
+        .send({
+          error: "Unexpected behaviour",
+        });
     });
 
     await this.app.listen({