---
title: "API - NuReply Developer Documentation"
description: "NuReply RESTful API for programmatic access to cold email outreach. 60 requests per minute, API key authentication, included with all paid plans."
image: "https://nureply.com/images/og-default.png"
canonical: "https://nureply.com/api/"
---

Developers 

# NuReply API 

Programmatic access to NuReply. Build integrations, automate workflows, and extend your outreach.

## Overview

The NuReply API is a RESTful interface that gives you programmatic access to the full NuReply platform. Manage contacts, create sequences, send emails, and retrieve campaign analytics through simple HTTP requests.

All API responses return JSON. Authentication uses API keys that can be generated from your NuReply dashboard.

### Authentication

Authenticate with an API key included in the Authorization header. Keys are available in your dashboard under Settings. Included with all paid plans and during the free trial.

### Rate Limits

The API is rate-limited to 60 requests per minute across all endpoints. Daily request limits vary by plan: Basic (1,000/day), Popular (5,000/day), Pro (20,000/day).

### Response Format

All endpoints return JSON. Successful requests return 2xx status codes. Errors include a message field describing the issue. Pagination uses cursor-based navigation.

## Endpoints

| Resource   | Description                            | Methods                |
| ---------- | -------------------------------------- | ---------------------- |
| /contacts  | Manage contact lists and prospect data | GET, POST, PUT, DELETE |
| /sequences | Create and manage email sequences      | GET, POST, PUT, DELETE |
| /emails    | Send emails and retrieve send history  | GET, POST              |
| /warmup    | Configure and monitor email warm-up    | GET, POST, PUT         |
| /accounts  | Manage connected email accounts        | GET, POST, DELETE      |
| /analytics | Campaign performance and metrics       | GET                    |
| /webhooks  | Configure webhook endpoints            | GET, POST, PUT, DELETE |

## Quick Start

1. 1. Sign up at [app.nureply.com/signup](https://app.nureply.com/signup)
2. 2. Navigate to Settings and generate an API key
3. 3. Include the key in the `Authorization` header of your requests
4. 4. Start making requests to the API endpoints

For full documentation, contact [support@nureply.com](mailto:support@nureply.com) or visit the API reference in your dashboard.

## Start building with the NuReply API

API access is included with all paid plans and during your 14-day free trial.

[Start Free Trial→](https://app.nureply.com/signup)

```json
{"@context":"https://schema.org","@type":"Organization","name":"NuReply","url":"https://nureply.com","logo":{"@type":"ImageObject","url":"https://nureply.com/images/nureply-logo-dark.png"},"description":"AI-powered cold email outreach platform. Automate personalized email campaigns, warm up sender domains, and scale outbound sales with intelligent sequencing.","parentOrganization":{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138883901","name":"DuoCircle LLC","url":"https://www.duocircle.com","sameAs":["https://www.wikidata.org/wiki/Q138883901","https://www.crunchbase.com/organization/duocircle-llc","https://www.linkedin.com/company/duocircle","https://github.com/duocircle"],"subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]},"sameAs":["https://www.linkedin.com/company/duocircle","https://x.com/nureplyinc","https://www.facebook.com/groups/nureplyinc","https://github.com/duocircle"],"aggregateRating":{"@type":"AggregateRating","ratingValue":"4.5","reviewCount":"12","bestRating":"5","worstRating":"1","url":"https://www.g2.com/products/nureply/reviews"},"contactPoint":{"@type":"ContactPoint","contactType":"customer support","url":"https://nureply.com/contact-us/"},"knowsAbout":["Cold Email Outreach","Email Warm-up","AI Email Personalization","Sales Prospecting","Email Deliverability","B2B Lead Generation","Email Automation","Cold Email Campaigns"]}
```

```json
{"@context":"https://schema.org","@type":"WebSite","name":"NuReply","url":"https://nureply.com","description":"AI-powered cold email outreach platform. Automate personalized email campaigns, warm up sender domains, and scale outbound sales with intelligent sequencing.","publisher":{"@type":"Organization","name":"NuReply","url":"https://nureply.com","logo":{"@type":"ImageObject","url":"https://nureply.com/images/nureply-logo-dark.png"},"description":"AI-powered cold email outreach platform. Automate personalized email campaigns, warm up sender domains, and scale outbound sales with intelligent sequencing.","parentOrganization":{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138883901","name":"DuoCircle LLC","url":"https://www.duocircle.com","sameAs":["https://www.wikidata.org/wiki/Q138883901","https://www.crunchbase.com/organization/duocircle-llc","https://www.linkedin.com/company/duocircle","https://github.com/duocircle"],"subOrganization":[{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138898167","name":"DMARC Report","url":"https://dmarcreport.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897474","name":"AutoSPF","url":"https://autospf.com"},{"@type":"Organization","@id":"https://www.wikidata.org/wiki/Q138897912","name":"Phish Protection","url":"https://www.phishprotection.com"}]}}}
```

```json
{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://nureply.com/"},{"@type":"ListItem","position":2,"name":"API","item":"https://nureply.com/api/"}]}
```