instantly-rate-limits

name	instantly-rate-limits
description	Implement Instantly.ai rate limiting, backoff, and request throttling patterns. Use when handling 429 errors, implementing retry logic, or building high-throughput Instantly integrations. Trigger with phrases like "instantly rate limit", "instantly 429", "instantly throttle", "instantly backoff", "instantly retry".
allowed-tools	Read, Write, Edit, Bash(npm:*), Grep
version	1.12.0
license	MIT
author	Jeremy Longshore <[e-mail]>
tags	["saas","instantly","rate-limits","reliability"]
compatibility	Designed for Claude Code

Instantly Rate Limits

Overview

Handle Instantly API v2 rate limits. The API returns 429 Too Many Requests when limits are exceeded. Most endpoints follow standard limits. The email listing endpoint has a stricter constraint of 20 requests per minute. Failed webhook deliveries are retried up to 3 times within 30 seconds.

Prerequisites

• Completed instantly-install-auth setup
• Understanding of exponential backoff patterns

Known Rate Limits

Endpoint	Limit	Notes
Most API endpoints	Standard REST limits	Varies by plan
GET /emails	20 req/min	Stricter — email listing
Webhook deliveries	3 retries in 30s	Instantly retries to your endpoint
Background jobs	N/A	Async — poll via GET /background-jobs/{id}

Instructions

Step 1: Exponential Backoff with Jitter

import { InstantlyApiError } from "./src/instantly/client";

interface RetryOptions {
  maxRetries: number;
  baseDelayMs: number;
  maxDelayMs: number;
}

const DEFAULT_RETRY: RetryOptions = {
  maxRetries: 5,
  baseDelayMs: 1000,
  maxDelayMs: 30000,
};

async function withBackoff<T>(
  operation: () => Promise<T>,
  : <> = {}
): <T> {
   { maxRetries, baseDelayMs, maxDelayMs } = { ..., ...opts };

   ( attempt = ; attempt <= maxRetries; attempt++) {
     {
        ();
    }  (err) {
       isRetryable =
        err   &&
        (err. ===  || err. >= );

       (!isRetryable || attempt === maxRetries)  err;

      
       delay = baseDelayMs * .(, attempt);
      delay = .(delay, maxDelayMs);

      
       jitter = delay * ( + .() * );
       totalDelay = delay + jitter;

      .(
        
      );
        ( (r, totalDelay));
    }
  }
    ();
}