replit-rate-limits

name	replit-rate-limits
description	Handle Replit resource limits: KV database caps, deployment quotas, and request throttling. Use when hitting storage limits, managing deployment resources, or implementing rate limiting in your Replit-hosted app. Trigger with phrases like "replit rate limit", "replit throttling", "replit 429", "replit storage limit", "replit quota".
allowed-tools	Read, Write, Edit
version	1.12.0
license	MIT
author	Jeremy Longshore <[e-mail]>
tags	["saas","replit","api","limits","database"]
compatibility	Designed for Claude Code

Replit Rate Limits

Overview

Understand and work within Replit's resource limits: Key-Value Database size caps, Object Storage quotas, deployment compute budgets, and egress allowances. Implement rate limiting in your own app for production safety.

Prerequisites

• Replit account with active Repls
• Understanding of your current resource usage
• For rate limiting: Express or Flask app

Replit Platform Limits

Key-Value Database

Limit	Value
Total storage	50 MiB (keys + values combined)
Maximum keys	5,000
Key size	1,000 bytes
Value size	5 MiB per value

Object Storage (App Storage)

Limit	Value
Object size	Configurable per bucket
Bucket count	Per Repl (auto-provisioned)
Rate	Throttled at high request volume

PostgreSQL

Limit	Value
Storage	Plan-dependent (1-10+ GB)
Connections	Pooled, plan-dependent
Dev + Prod	Separate databases auto-provisioned

Deployments

Resource	Autoscale	Reserved VM
Scale behavior	0 to N based on traffic	Always-on, fixed size
Min cost	Pay per request	$0.20/day (~$6.20/month)
Max resources	Plan-dependent	Up to 4 vCPU, 16 GiB RAM
Egress	$0.10/GiB over allowance	$0.10/GiB over allowance

Instructions

Step 1: Monitor KV Database Usage

// Check how close you are to KV limits
import Database  ;

  () {
   db =  ();
   keys =  db.();
   totalSize = ;

   ( key  keys) {
     value =  db.(key);
     valueSize = .(value).;
    totalSize += key. + valueSize;
  }

   limitMiB = ;
   usedMiB = totalSize / ( * );
   percentUsed = (usedMiB / limitMiB * ).();

  .();
  .();

   ((percentUsed) > ) {
    .();
  }
}