Send emails from the CLI

curl -fsSL https://resend.com/install.sh | bash
Documentation
Context-aware modes

Built for humans.
Built for agents.

Human interaction defaults to interactive mode, while agents and CI environments can work with structured JSON.

Interactive mode

Agent mode

Full API Coverage, tuned for the terminal

Anything you can do with the Resend API is available in the CLI, too.

Agent skills included

Ships with an agent skill that documents best practices and helps avoid common pitfalls.

Send local files

Pass HTML or React Email files from your local file system to send local emails using the CLI.

Domains & API keys

Create and verify domains, rotate API keys, and inspect DNS records from the shell.

Audiences & broadcasts

Manage contacts, segments, topics, and broadcast campaigns, including scheduling with plain-English dates.

Diagnostics tooling

Run `resend doctor` to check your CLI version, API key, domain status, and agent environment in one shot.

Automations & events

Define full automations from the terminal and then send events to trigger your automations.

Built-in Webhooks listener

Create a temporary endpoint to view live webhook events on your machine via a tunnel.

Multiple account support

Authenticate by storing your API key locally. Switch between profiles without logging in and out.

Logs and observability

Get your agent's help debugging issues. View API request logs with full request and response bodies.

OpenAI
If there is a startup that cares about developer experience, that startup is Resend.

Daniela Passos

Developer Comms at OpenAI

# GitHub Actions
env:
  RESEND_API_KEY: ${{ secrets.RESEND_API_KEY }}
steps:
  - run: |
      resend emails send \
        --from "Acme <onboarding@resend.dev>" \
        --to delivered@resend.dev \
        --subject "Deploy complete" \
        --text "Version ${{ github.sha }} deployed."
Ready for automations

Ready for CI/CD Environments

Set RESEND_API_KEY as an environment variable to run the CLI in CI/CD environments.

  • "Our team loves Resend. It makes email sending so easy and reliable. After we switched to Dedicated IPs, our deliverability improved tremendously and we don't hear complaints about emails landing on spam anymore."
    Vlad MatsiiakoCo-founder of Infisical
  • "As a developer I love the approach that the Resend team is taking. Its so refreshing. They are also extremely user-centric and helpful in terms of getting you up and running, sending beautiful emails that deliver."
    Hahnbee LeeCo-Founder at Mintlify
  • "We value tools that feel stable, well thought out, and aligned with the standards we expect across our stack. Resend meets those expectations. It lets our team stay focused on building the larger platform rather than getting pulled into the overhead that typically comes with legacy email infrastructure."
    Bradley GreenwoodVP of Engineering at MrBeast
  • "Our partnership with Resend has been a great experience. They've made sure we can focus on what we do best—building our product and growing our business."
    Sahil LavingiaCEO of Gumroad
  • "Switching over to Resend from SendGrid marked a significant improvement in our email management. We started with a small test - waitlist emails for our iOS and Windows apps. Within 30 minutes, we were done."
    Thomas MannFounder & CEO of Raycast
  • "The simplicity and reliability of Resend allowed our engineers to focus on building features rather than troubleshooting email infrastructure."
    Amadeo PellicceConnectors, Agents and Automations Lead at Replit
  • "We're a small team with a lot on our plates. Email infrastructure is something we don't want to think about, and with Resend we don't have to."
    Peter SuhmOps at Tailwind
  • "The best part about taking Resend into production was that there was no friction at all."
    Tara NagarSoftware Engineer at Braintrust
  • "The flexibility of Resend is what we value most. It allows us to quickly adapt and refine our email communications as our products evolve."
    Glauber CostaFounder and CEO at Turso
  • "Resend is email with simpler APIs, better webhooks, and best-in-class debugging."
    Dan FarrellyCTO and Co-Founder of Inngest
  • "Our team loves Resend. It makes email sending so easy and reliable. After we switched to Dedicated IPs, our deliverability improved tremendously and we don't hear complaints about emails landing on spam anymore."
    Vlad MatsiiakoCo-founder of Infisical
  • "As a developer I love the approach that the Resend team is taking. Its so refreshing. They are also extremely user-centric and helpful in terms of getting you up and running, sending beautiful emails that deliver."
    Hahnbee LeeCo-Founder at Mintlify
  • "We value tools that feel stable, well thought out, and aligned with the standards we expect across our stack. Resend meets those expectations. It lets our team stay focused on building the larger platform rather than getting pulled into the overhead that typically comes with legacy email infrastructure."
    Bradley GreenwoodVP of Engineering at MrBeast
  • "Our partnership with Resend has been a great experience. They've made sure we can focus on what we do best—building our product and growing our business."
    Sahil LavingiaCEO of Gumroad
  • "Switching over to Resend from SendGrid marked a significant improvement in our email management. We started with a small test - waitlist emails for our iOS and Windows apps. Within 30 minutes, we were done."
    Thomas MannFounder & CEO of Raycast
  • "The simplicity and reliability of Resend allowed our engineers to focus on building features rather than troubleshooting email infrastructure."
    Amadeo PellicceConnectors, Agents and Automations Lead at Replit
  • "We're a small team with a lot on our plates. Email infrastructure is something we don't want to think about, and with Resend we don't have to."
    Peter SuhmOps at Tailwind
  • "The best part about taking Resend into production was that there was no friction at all."
    Tara NagarSoftware Engineer at Braintrust
  • "The flexibility of Resend is what we value most. It allows us to quickly adapt and refine our email communications as our products evolve."
    Glauber CostaFounder and CEO at Turso
  • "Resend is email with simpler APIs, better webhooks, and best-in-class debugging."
    Dan FarrellyCTO and Co-Founder of Inngest
  • "Our team loves Resend. It makes email sending so easy and reliable. After we switched to Dedicated IPs, our deliverability improved tremendously and we don't hear complaints about emails landing on spam anymore."
    Vlad MatsiiakoCo-founder of Infisical
  • "As a developer I love the approach that the Resend team is taking. Its so refreshing. They are also extremely user-centric and helpful in terms of getting you up and running, sending beautiful emails that deliver."
    Hahnbee LeeCo-Founder at Mintlify
  • "We value tools that feel stable, well thought out, and aligned with the standards we expect across our stack. Resend meets those expectations. It lets our team stay focused on building the larger platform rather than getting pulled into the overhead that typically comes with legacy email infrastructure."
    Bradley GreenwoodVP of Engineering at MrBeast
  • "Our partnership with Resend has been a great experience. They've made sure we can focus on what we do best—building our product and growing our business."
    Sahil LavingiaCEO of Gumroad
  • "Switching over to Resend from SendGrid marked a significant improvement in our email management. We started with a small test - waitlist emails for our iOS and Windows apps. Within 30 minutes, we were done."
    Thomas MannFounder & CEO of Raycast
  • "The simplicity and reliability of Resend allowed our engineers to focus on building features rather than troubleshooting email infrastructure."
    Amadeo PellicceConnectors, Agents and Automations Lead at Replit
  • "We're a small team with a lot on our plates. Email infrastructure is something we don't want to think about, and with Resend we don't have to."
    Peter SuhmOps at Tailwind
  • "The best part about taking Resend into production was that there was no friction at all."
    Tara NagarSoftware Engineer at Braintrust
  • "The flexibility of Resend is what we value most. It allows us to quickly adapt and refine our email communications as our products evolve."
    Glauber CostaFounder and CEO at Turso
  • "Resend is email with simpler APIs, better webhooks, and best-in-class debugging."
    Dan FarrellyCTO and Co-Founder of Inngest

Start sending in minutes

Resend delivers mission-critical emails for some
of the fastest growing teams.

Sign up for free