Resend vs SendGrid: Which to Pick If You Don’t Code

Claude Code has suggested Resend or SendGrid to send your SaaS's emails, and you want to know which one to pick. Both send transactional email: the messages your product sends automatically to one person, such as a welcome email, a password reset or a receipt. If that term is new territory, our guide to what a transactional email service is covers the basics.

This page compares Resend vs SendGrid for people who build with Claude Code but don't write code: setup, pricing, and what working with each is like once your emails are live. At the end, there's an option built for non-developers.

Resend vs SendGrid: what's the quick verdict?

If you don't code, Resend is usually the better fit of the two. It has an ongoing free plan, a smaller and more focused dashboard, and an official connector that lets Claude Code work with your Resend account while you build. SendGrid is a large, long-established platform with more settings, a 60-day free trial, and paid plans from $19.95 a month.

Both are good services, built for people who write code.

Who are Resend and SendGrid built for?

Resend and SendGrid are both built for developers. Resend is the newer of the two and focuses on email alone. Its docs talk in terms of APIs, SDKs (ready-made code libraries) and code samples, and its Claude Code instructions are written for developers.

SendGrid is owned by Twilio and now sits on twilio.com. It serves companies of every size, and its console has many settings to match: sender authentication, API key permissions, IP management, teammates and more.

Each one fits some builders better than others:

• If you write code or want to edit code yourself, either service works well.
• If you expect very high volumes, SendGrid's Pro and Premier plans are designed for that scale.

How do you set up Resend?

Setting up Resend takes five steps. You do some in Resend's dashboard and some in Claude Code.

1. Create an account on the Resend website. The free plan needs no payment details.
2. Add your domain. In the dashboard, open Domains and choose Add Domain. Resend recommends a subdomain such as updates.yourcompany.com rather than yourcompany.com itself.
3. Add the DNS records. DNS (the Domain Name System) is the address book for your domain, kept wherever your domain is registered. Resend gives you a few records to paste there, which proves you own the domain. If your domain is on Cloudflare, a Sign in to Cloudflare button can add them for you. Verification often takes about 15 minutes but can take up to 72 hours.
4. Create an API key. An API key is a secret password your project uses to send email through Resend. Open API keys, choose Create API Key, and pick Sending access. Resend shows the key only once, so save it somewhere safe.
5. Hand it to Claude Code to add the key and the sending code to your project, then send a test.

I've set up Resend for my transactional emails and I have my API key ready. Please store it safely in my project, add what's needed to send email, and send me a test so I can check it arrives.

Claude Code will tell you where the key should go and confirm when the test email has been sent.

Resend also offers an official connector. A connector, also called an MCP server, lets Claude Code work with an outside service from the chat. You can find Resend in Claude's connector directory, or add it as a custom connector with the server URL https://mcp.resend.com/mcp, then sign in to Resend when asked. Once it's connected, Claude Code can add domains, create templates and API keys, and look at request logs for you.

For the full walkthrough, see how to set up Resend and our guide to setting up Resend in Claude Code.

How do you set up SendGrid?

SendGrid's setup follows the same shape, with more choices along the way.

1. Create an account. New accounts start on a 60-day free trial, with no credit card needed.
2. Authenticate your domain. In the console, go to Settings, then Sender Authentication, and choose Get Started under Domain Authentication. Pick your DNS host and enter the domain you send from.
3. Add the DNS records. With SendGrid's default setting, you add four records: three CNAME records and one TXT record. SendGrid can add them for you only if GoDaddy hosts your domain. Otherwise, you paste them in yourself. DNS changes can take up to 48 hours.
4. Create an API key. Go to Settings, then API Keys, and choose Create API Key. You'll pick a permission level, such as Full Access or Custom Access. SendGrid shows the key only once.
5. Hand it to Claude Code to add the key and the sending code to your project, then send a test.

SendGrid also offers Single Sender Verification, which confirms one from address by email instead of a whole domain. It's quicker for testing, but SendGrid warns against using addresses from some large inbox providers, so most projects still authenticate a domain.

Every email service has some version of the domain step. Our guide to verifying your domain for email explains the records in plain English. For SendGrid specifically, see how to set up SendGrid and setting up SendGrid with Claude Code.

How do Resend and SendGrid prices compare?

Resend has a free plan you can stay on, while SendGrid's free option is a 60-day trial. Their entry paid plans cost about the same.

Prices checked October 2026, from each provider's pricing page.

For a new SaaS sending fewer than 100 emails a day, Resend's free plan can cover launch. SendGrid's trial gives you time to test, but you'll need a paid plan once the 60 days are up.

What is working with Resend day to day?

Once your emails are live, your project sends them automatically. Day to day, the work is checking that emails went out, changing wording or design, and occasionally replacing a key.

With Resend, you can do that in the dashboard or, with the connector, by asking Claude Code. It can check request logs, create and update templates, and manage domains and keys from the chat. Resend's docs are still written for developers, so expect some technical terms along the way.

What is working with SendGrid day to day?

With SendGrid, most day-to-day work happens in the console. That's where you check email activity, manage API keys and change settings.

Twilio offers an MCP server, but it's in public beta and read-only. It lets Claude search Twilio and SendGrid documentation, but it can't act on your account. So Claude Code can write and update your sending code, while checking whether a particular email was delivered means opening the console. On the trial and Essentials plans, searchable email activity covers the last 3 days.

Which is easier if you don't code?

Comparing SendGrid vs Resend for non-developers, Resend is usually the easier of the two. It asks for fewer decisions during setup, its free plan doesn't run out, and its connector lets Claude Code handle more of the day-to-day work in the chat. SendGrid has more settings to understand, and more of the ongoing work happens in its console.

Both are still developer tools at heart. You'll follow developer-focused docs, and you'll be the one connecting the pieces.

How is SimpleSends different for people who don't code?

SimpleSends is a transactional email service built for people who build with Claude Code but don't write code. It does the same job as Resend and SendGrid: your live project sends emails through it automatically. The difference is who it's built for and what working with it is like once it's connected.

• Built for non-developers. The sign-up, the connect steps and the help are written in plain English, without developer jargon.
• Everything after sign-up happens in the chat. You don't need a dashboard for day-to-day work. You brief Claude Code the way you'd brief a person.
• Claude Code does the whole job. It designs, writes, builds and changes every transactional email, from welcome emails to receipts. "Set up all my transactional emails" is a reasonable brief.
• Problems get sorted in plain English. Claude Code can read your send logs and delivery status, tell you whether an email went out, and help work out why one didn't.

Test emails can be sent from the chat while you build. Once your project is live, real emails go out from your project, not the chat.

Getting started takes four steps:

1. Sign up on the SimpleSends website and follow the steps there to set up the email address you'll send from. To send from your own domain, this includes adding a few DNS records where your domain is registered.
2. Add SimpleSends to Claude Code. Open Customize, then Connectors, choose Add, then Add custom connector. Use these details:

3. Log in to SimpleSends when Claude prompts you to connect.
4. Tell Claude Code you're set up.

I've connected SimpleSends for all transactional email.

Claude Code takes it from there, including adding what your project needs to send email.