Resend CLI - Resend

The Resend CLI is the official command-line interface for Resend. It covers the full API surface and is built for humans, AI agents, and CI/CD pipelines.

Installation

cURL
npm
Homebrew
PowerShell (Windows)

curl -fsSL https://resend.com/install.sh | bash

npm install -g resend-cli

brew install resend/cli/resend

irm https://resend.com/install.ps1 | iex

Authentication

The CLI resolves your API key using the following priority chain:

Priority	Source	How to set
1 (highest)	`--api-key` flag	`resend --api-key re_xxx emails send ...`
2	`RESEND_API_KEY` env var	`export RESEND_API_KEY=re_xxx`
3 (lowest)	Saved credentials	`resend login`

If no key is found from any source, the CLI errors with code auth_error. resend login Authenticate by storing your API key locally. The key is validated against the Resend API before being saved.

resend login

In a terminal, the command prompts for your key via masked input. In non-interactive environments (CI, pipes), use the --key flag:

resend login --key re_xxxxxxxxxxxxx

Credentials are saved to your system’s secure credential storage (macOS Keychain, Windows Credential Manager, or Linux secret service).

Flag	Description
`--key <key>`	API key to store (required in non-interactive mode)

resend logout Remove your saved API key.

resend logout

Switch between profiles If you work across multiple Resend teams or accounts, switch between profiles without logging in and out:

resend auth switch

Use the global --profile flag on any command to run it with a specific profile:

resend domains list --profile production

Other profile management commands:

Command	Description
`resend auth list`	List all profiles
`resend auth switch [name]`	Switch the active profile
`resend auth rename [old] [new]`	Rename a profile
`resend auth remove [name]`	Remove a profile
`resend whoami`	Show current authentication status

Emails

Send, retrieve, cancel, and manage email delivery. resend emails send Send an email. Provide all options via flags for scripting, or let the CLI prompt interactively for missing fields.

resend emails send \
  --from "Acme <onboarding@resend.dev>" \
  --to delivered@resend.dev \
  --subject "Hello World" \
  --text "It works!"

Flag	Required	Description
`--from <address>`	Yes *	Sender email address (must be from a verified domain)
`--to <addresses...>`	Yes	One or more recipient email addresses (space-separated)
`--subject <subject>`	Yes *	Email subject line
`--text <text>`	One of text/html	Plain text body
`--text-file <path>`	One of text/html	Path to a plain text file (use `-` for stdin)
`--html <html>`	One of text/html	HTML body as a string
`--html-file <path>`	One of text/html	Path to an HTML file (use `-` for stdin)
`--react-email <path>`	One of text/html	Path to a React Email template (`.tsx`) to render and send
`--cc <addresses...>`	No	CC recipients
`--bcc <addresses...>`	No	BCC recipients
`--reply-to <address>`	No	Reply-to email address
`--scheduled-at <datetime>`	No	Schedule for later (ISO 8601 or natural language)
`--attachment <paths...>`	No	File path(s) to attach
`--headers <key=value...>`	No	Custom headers as key=value pairs
`--tags <name=value...>`	No	Email tags as name=value pairs
`--idempotency-key <key>`	No	Deduplicate this send request
`--template <id>`	No	Template ID to use
`--var <key=value...>`	No	Template variables as key=value pairs

* Not required when using --template, which provides them. Examples:

# HTML from a file
resend emails send \
  --from "Acme <onboarding@resend.dev>" \
  --to delivered@resend.dev \
  --subject "Hello World" \
  --html-file ./welcome.html

# Multiple recipients with CC, BCC, and reply-to
resend emails send \
  --from "Acme <onboarding@resend.dev>" \
  --to delivered@resend.dev \
  --subject "Hello World" \
  --text "It works!" \
  --cc manager@example.com \
  --bcc archive@example.com \
  --reply-to noreply@example.com

# Send a React Email template
resend emails send \
  --from "Acme <onboarding@resend.dev>" \
  --to delivered@resend.dev \
  --subject "Hello World" \
  --react-email ./emails/welcome.tsx

# Send with a template
resend emails send \
  --from "Acme <onboarding@resend.dev>" \
  --to delivered@resend.dev \
  --template tmpl_xxxxx \
  --var "name=Alice" --var "company=Acme"

resend emails batch Send up to 100 emails in a single API request from a JSON file.

resend emails batch --file ./emails.json

Flag	Required	Description
`--file <path>`	Yes	Path to JSON file containing array of email objects (use `-` for stdin)
`--react-email <path>`	No	Path to a React Email template (`.tsx`). Rendered HTML applies to every email in the batch
`--idempotency-key <key>`	No	Deduplicate this batch request
`--batch-validation <mode>`	No	`strict` (default, entire batch fails on any error) or `permissive`

Other email commands

resend emails list                # List sent emails
resend emails get <id>            # Retrieve a sent email by ID
resend emails cancel <id>         # Cancel a scheduled email
resend emails update <id>         # Update a scheduled email's send time

Receiving

Process inbound emails, download attachments, and stream incoming messages.

resend emails receiving list              # List received (inbound) emails
resend emails receiving get <id>          # Retrieve a received email with full details
resend emails receiving listen            # Poll for new inbound emails as they arrive
resend emails receiving forward <id>      # Forward a received email
resend emails receiving attachments <id>  # List attachments for a received email
resend emails receiving attachment <id> <attachment-id>  # Download a specific attachment

Domains

Manage your sending and receiving domains.

resend domains create --name example.com --region us-east-1
resend domains list               # List all domains
resend domains get <id>           # Retrieve domain with DNS records
resend domains verify <id>        # Trigger DNS verification
resend domains update <id>        # Update TLS, tracking, or receiving settings
resend domains delete <id>        # Delete a domain

API Keys

Create, list, and revoke API keys for programmatic access.

resend api-keys create --name "Production" --permission full_access
resend api-keys list              # List all API keys
resend api-keys delete <id>       # Delete an API key

Broadcasts

Create and send broadcast emails to segments.

resend broadcasts create \
  --from "Acme <onboarding@resend.dev>" \
  --subject "Product update" \
  --segment-id seg_xxxxx \
  --html-file ./broadcast.html \
  --send
resend broadcasts list            # List all broadcasts
resend broadcasts get <id>        # Retrieve broadcast details
resend broadcasts send <id>       # Send a draft broadcast
resend broadcasts update <id>     # Update a draft broadcast
resend broadcasts delete <id>     # Delete a broadcast
resend broadcasts open [id]       # Open a broadcast in the dashboard

Contacts

Manage contacts, segment membership, and topic subscriptions.

resend contacts create --email steve.wozniak@gmail.com --first-name Steve
resend contacts list              # List all contacts
resend contacts get <id>          # Retrieve a contact by ID or email
resend contacts update <id>       # Update contact properties
resend contacts delete <id>       # Delete a contact
resend contacts segments <id>     # List segments a contact belongs to
resend contacts add-segment <id>  # Add a contact to a segment
resend contacts remove-segment <id> <segment-id>  # Remove from a segment
resend contacts topics <id>       # List topic subscriptions
resend contacts update-topics <id>  # Update topic subscriptions
resend contacts imports create --file ./contacts.csv  # Import contacts from CSV
resend contacts imports get <id>   # Retrieve import status and counts
resend contacts imports list       # List past contact imports

resend contacts imports create Start an asynchronous CSV import. The command uploads the file and returns a contact import ID immediately; use resend contacts imports get <id> to check processing status.

resend contacts imports create \
  --file ./contacts.csv \
  --column-map '{"email":"Email","firstName":"First Name","lastName":"Last Name"}' \
  --on-conflict upsert

Flag	Required	Description
`--file <path>`	Yes	Path to the CSV file to import. Maximum file size is 200MB
`--column-map <json>`	No	JSON object mapping CSV headers to contact fields
`--on-conflict <mode>`	No	`upsert` to update existing contacts or `skip` to leave them unchanged
`--segment-id <id...>`	No	Segment IDs to add imported contacts to. Repeat the flag for multiple segments
`--topics <json>`	No	JSON array of topic subscriptions with `id` and `subscription` fields

Without --column-map, CSV headers must match the lowercase contact field names exactly: email, first_name, and last_name. Use --column-map when your CSV uses headers like Email or First Name.

# Import contacts and add them to a segment
resend contacts imports create \
  --file ./contacts.csv \
  --segment-id 78261eea-8f8b-4381-83c6-79fa7120f1cf

# Map custom properties and topic subscriptions
resend contacts imports create \
  --file ./contacts.csv \
  --column-map '{"email":"Email","properties":{"plan":{"column":"Plan","type":"string"}}}' \
  --topics '[{"id":"b6d24b8e-af0b-4c3c-be0c-359bbd97381e","subscription":"opt_in"}]'

resend contacts imports get Retrieve a contact import by ID, including status and row counts.

resend contacts imports get 479e3145-dd38-476b-932c-529ceb705947

resend contacts imports list List contact imports. The default limit is 10.

resend contacts imports list --status completed

Flag	Required	Description
`--limit <n>`	No	Maximum number of imports to return. Must be between `1` and `100`
`--after <cursor>`	No	Return imports after this contact import ID
`--before <cursor>`	No	Return imports before this contact import ID
`--status <status>`	No	Filter by `queued`, `in_progress`, `completed`, or `failed`

Contact Properties

Define custom properties to store additional data on contacts.

resend contact-properties create --key "company" --type string
resend contact-properties list | get | update | delete

Segments

Group contacts into targetable segments for broadcasts.

resend segments create --name "VIPs"
resend segments list              # List all segments
resend segments get <id>          # Retrieve a segment by ID
resend segments contacts <id>     # List contacts in a segment
resend segments delete <id>       # Delete a segment

Topics

Manage subscription topics that contacts can opt in or out of.

resend topics create --name "Product updates"
resend topics list | get | update | delete

Templates

Create and manage email templates.

resend templates create --name "Welcome" --subject "Welcome to Acme" --react-email ./emails/welcome.tsx
resend templates list             # List all templates
resend templates get <id>         # Retrieve a template by ID or alias
resend templates update <id>      # Update a template
resend templates publish <id>     # Publish a draft template
resend templates duplicate <id>   # Duplicate a template
resend templates delete <id>      # Delete a template
resend templates open [id]        # Open a template in the dashboard

Logs

View API request logs.

resend logs list              # List API request logs
resend logs get <id>          # Retrieve a log with full request/response bodies
resend logs open [id]         # Open logs in the dashboard

Webhooks

resend webhooks create \
  --endpoint https://example.com/webhook \
  --events email.sent email.delivered

Flag	Required	Description
`--endpoint <url>`	Yes	HTTPS URL to receive events
`--events <types...>`	Yes	Event types to subscribe to (use `all` for all events)

resend webhooks listen Listen for webhook events locally during development. Starts a server, registers a temporary webhook, streams events, and cleans up on exit.

resend webhooks listen \
  --url https://hostname.tailnet-name.ts.net \
  --events email.received

Flag	Required	Description
`--url <url>`	Yes	Your public URL (e.g., Tailscale Funnel URL)
`--events <types...>`	No	Event types to listen for (default: `all`)
`--forward-to <url>`	No	Forward payloads to a local server (passes original Svix headers)
`--port <port>`	No	Local server port (default: 4318)

See the webhook events documentation for the full list of available event types. For agent-specific webhook patterns, see CLI for AI Agents.

Other webhook commands

resend webhooks list              # List all webhook endpoints
resend webhooks get <id>          # Retrieve a webhook configuration
resend webhooks update <id>       # Update endpoint URL, events, or status
resend webhooks delete <id>       # Delete a webhook endpoint

Run resend <command> --help for the full list of flags and options on any command.

Automations

Create, manage, and monitor event-driven automation workflows. resend automations create Create a new automation from a JSON file describing the workflow graph.

resend automations create --file ./automation.json

Flag	Required	Description
`--name <name>`	Yes *	Automation name
`--status <status>`	No	Initial status: `enabled` or `disabled` (default: `disabled`)
`--steps <json>`	Yes *	Steps array as JSON string
`--connections <json>`	Yes *	Connections array as JSON string
`--file <path>`	Yes *	Path to JSON file with full automation payload (use `-` for stdin)

* Provide --file, or --name with --steps and --connections. When using --file, other flags override file values. Other automation commands

resend automations list              # List all automations
resend automations get <id>          # Retrieve an automation with steps and connections
resend automations update <id>       # Update an automation's status (enable or disable)
resend automations stop <id>         # Stop an enabled automation
resend automations delete <id>       # Delete an automation
resend automations open [id]         # Open an automation in the dashboard

Automation runs

resend automations runs list <automation-id>                    # List runs for an automation
resend automations runs list <automation-id> --status running   # Filter by status
resend automations runs get --automation-id <id> --run-id <id>  # Retrieve a specific run

Flag	Required	Description
`--status <status>`	No	Filter by status: `running`, `completed`, `failed`, `cancelled` (comma-separated)

Events

Define and send events that trigger automations. resend events send Send an event to trigger matching automations for a contact.

resend events send \
  --event user.created \
  --email steve.wozniak@gmail.com \
  --payload '{"plan":"pro"}'

Flag	Required	Description
`--event <name>`	Yes	Event name (e.g. `user.created`)
`--contact-id <id>`	One of contact	Contact ID (mutually exclusive with `--email`)
`--email <email>`	One of contact	Contact email (mutually exclusive with `--contact-id`)
`--payload <json>`	No	Event payload as JSON string

Other event commands

resend events create --name user.created --schema '{"plan":"string"}'
resend events list                   # List all event definitions
resend events get <id>               # Retrieve an event by ID or name
resend events update <id>            # Update an event's schema
resend events delete <id>            # Delete an event definition
resend events open                   # Open events in the dashboard

Utility

Diagnose your setup, manage authentication, and configure shell completions. resend doctor Run environment diagnostics. Verifies your CLI version, API key, credential storage, and domain status.

resend doctor

Check	Pass	Warn	Fail
CLI Version	Running latest	Update available	N/A
API Key	Key found (shows masked key + source)	N/A	No key found
Credential Storage	Secure backend (e.g., macOS Keychain)	Plaintext file fallback	N/A
API Validation	Verified domains exist	Sending-only key, no domains, or all pending	API key invalid

# JSON output
resend doctor --json

{
  "ok": true,
  "checks": [
    { "name": "CLI Version", "status": "pass", "message": "v1.7.0 (latest)" },
    {
      "name": "API Key",
      "status": "pass",
      "message": "re_...xxxx (source: env)"
    },
    {
      "name": "Credential Storage",
      "status": "pass",
      "message": "macOS Keychain"
    },
    { "name": "Domains", "status": "pass", "message": "2 verified, 0 pending" }
  ]
}

Exits 0 when all checks pass or warn. Exits 1 if any check fails. Other utility commands

Command	Description
`resend whoami`	Show current authentication status
`resend open`	Open the Resend dashboard in your browser
`resend update`	Check for available CLI updates
`resend completion [shell]`	Generate shell completion scripts (bash, zsh, fish, powershell)
`resend completion --install`	Auto-install completions into your shell profile

Global options

These flags work on every command:

resend [global options] <command> [command options]

Flag	Description
`--api-key <key>`	Override API key for this invocation
`-p, --profile <name>`	Profile to use (overrides `RESEND_PROFILE` env var)
`--json`	Force JSON output even in interactive terminals
`-q, --quiet`	Suppress spinners and status output (implies `--json`)
`--insecure-storage`	Save API key as plaintext instead of secure storage
`--version`	Print version and exit
`--help`	Show help text

Output behavior

The CLI has two output modes that switch automatically:

Mode	When	Stdout	Stderr
Interactive	Terminal (TTY)	Formatted text	Spinners, prompts
Machine	Piped, CI, or `--json`	JSON	Nothing

Pipe to another command and JSON output activates:

resend doctor | jq '.checks[].name'
resend emails send \
  --from "Acme <onboarding@resend.dev>" \
  --to delivered@resend.dev \
  --subject "Hello World" \
  --text "It works!" | jq '.id'

Errors always exit with code 1 and output structured JSON:

{ "error": { "message": "No API key found", "code": "auth_error" } }

CI/CD

Set RESEND_API_KEY as an environment variable, with no resend login needed:

# 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."

Configuration

Item	Path	Notes
Config directory	`~/.config/resend/`	Respects `$XDG_CONFIG_HOME` on Linux, `%APPDATA%` on Windows
Credentials	System secure storage	macOS Keychain, Windows Credential Manager, or Linux secret service
Install directory	`~/.resend/bin/`	Respects `$RESEND_INSTALL`

Using the CLI with AI Agents

Learn about Agent Skills, non-interactive mode, and local webhook development for AI agents.

​Installation

​Authentication

​Emails

​Receiving

​Domains

​API Keys

​Broadcasts

​Contacts

​Contact Properties

​Segments

​Topics

​Templates

​Logs

​Webhooks

​Automations

​Events

​Utility

​Global options

​Output behavior

​CI/CD

​Configuration

Using the CLI with AI Agents

Installation

Authentication

Emails

Receiving

Domains

API Keys

Broadcasts

Contacts

Contact Properties

Segments

Topics

Templates

Logs

Webhooks

Automations

Events

Utility

Global options

Output behavior

CI/CD

Configuration