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Email Infrastructure / Developer Tools

Resend

The email API for developers, send transactional and marketing emails at scale without landing in spam folders.

resend.com ↗
99
AI Readiness

Resend is a modern email sending platform built for developers. Founded in 2022 as an open source project, launched as a full platform in 2023 after joining Y Combinator's winter batch. The company is headquartered in San Francisco and operates as a fully remote team.

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Producto

Resend is an email sending platform that provides a simple API, official SDKs for multiple programming languages, React-based email templates, contact audience management, broadcast campaigns, real-time webhooks, and advanced deliverability tools. It is designed to let developers integrate email sending in minutes while handling infrastructure, deliverability, and compliance.

Problema que resuelve: Sending emails that reliably reach the inbox (not the spam folder) is the biggest pain point for developers. Legacy email infrastructure is complex, hard to integrate, and difficult to debug. Resend simplifies the entire email stack with a clean API, modern tooling, and managed deliverability.

Para: Software developers and engineering teams, SaaS companies sending transactional emails, Startups and scale-ups needing reliable email infrastructure, Marketing and product teams sending broadcast campaigns, Enterprises requiring compliance, dedicated IPs, and custom SLAs

Casos de uso

Features (12)

Multi-language SDKs◦

Official SDKs for Node.js, Python, Ruby, PHP, Go, Rust, Java, Elixir, .NET, plus REST and SMTP support, enabling integration in minutes.

React Email Templates◦

Build email templates using React components powered by the open source react-email library, avoiding HTML table layouts.

Broadcasts◦

Send bulk email campaigns to contact lists using a WYSIWYG editor with support for personalization variables, Markdown, scheduling, and analytics.

Audiences◦

Contact management system allowing import via CSV, API, or manual entry, with unsubscribe handling, audience metrics, and growth tracking.

Webhooks◦

Real-time HTTPS webhook notifications for email events including delivered, opened, bounced, clicked, and complained, with retry logic and replay capability.

Test Mode◦

Dedicated resend.dev test email addresses (delivered, bounced, complained, suppressed) to simulate email events safely during development.

Dedicated IPs◦

Fully managed dedicated IP addresses that automatically warm up and autoscale based on sending volume, available as an add-on on the Scale plan for senders exceeding 3,000 emails/day.

Domain Authentication (DKIM, SPF, DMARC, BIMI)◦

Tools to verify sending domains with DKIM and SPF, create DMARC policies to prevent spoofing, and set up BIMI to display brand logos in inboxes.

Multi-region Sending◦

Send emails from the region closest to users across North America, South America, Europe, and Asia to reduce delivery latency.

Dynamic Suppression List◦

Automatically prevents sending to recipients who have bounced, complained, or unsubscribed, helping comply with CAN-SPAM and similar regulations.

Automations◦

Event-driven email workflows that trigger emails based on user actions, with 10,000 automation runs included on all plans and pay-as-you-go at $0.0015 per run beyond the limit.

Deliverability Insights◦

In-app recommendations and checks to improve click rates and inbox placement, including proactive DNSBL blocklist tracking with removal request generation.

Pricing

Free

◦

0/month

  • · Sending & receiving
  • · Ticket support
  • · RESTful API
  • · SMTP relay
  • · Official SDKs
  • · Schedule emails

Pro

◦

20/month

  • · All Free features
  • · Ticket support
  • · Additional domains with add-on ($20/mo for 100 more domains)
  • · Pay-as-you-go overage

Scale

◦

90/month

  • · All Pro features
  • · Slack & ticket support
  • · Dedicated IP with add-on ($30/mo, requires 3,000+ emails/day)
  • · Additional domains with add-on
  • · Urgent response SLA
  • · Deliverability expertise

Enterprise

◦
  • · All Scale features
  • · Priority support
  • · Dedicated IPs with add-on
  • · Custom contract
  • · Penetration testing

Add-on: Additional Domains

◦

20/month

  • · Self-serve add/remove

Add-on: Dedicated IPs

◦

30/month

  • · Automatic IP warmup
  • · Monitoring
  • · Autoscaling based on utilization

Integraciones (12)

Next.jsNode.jsReact EmailPythonPHP / LaravelRuby / RailsGoSMTPRemixVercelMCP ServerElixir / Java / Rust / .NET

Documentación

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Consultar por API / MCP

Este profile es consultable por agentes. Datos verificados el 2026-08-15 · versión 1.

GET  /v1/company/resend
GET  /v1/company/resend/pricing
POST /v1/query        { "company": "resend", "query": "..." }
MCP  /api/mcp         get_company · query_company · discover_companies

Fuentes