@nuntly/cli

Command-line interface for Nuntly, the developer-first email platform. Send emails, manage domains, webhooks, inboxes, and more from your terminal.

Documentation | API Reference | Get your API key

Table of contents

• Requirements
• Installation
• Authentication
• Quick start
• Exit codes
• Commands
• Output formats
• Delete confirmation
• FAQ
• Semantic versioning
• Contributing
• License

Requirements

• macOS, Linux, or Windows on x64 or arm64
• For the npm install path: Node.js 20 or later (or Bun)
• For the standalone binary install path: no runtime required, the binary embeds the JavaScript runtime
• A Nuntly API key from https://nuntly.com/auth/sign-up

Installation

One-liner (macOS / Linux)

curl -fsSL https://raw.githubusercontent.com/nuntly/nuntly-cli/main/scripts/install.sh | bash

Detects your OS and architecture, downloads the matching binary from GitHub Releases, verifies its SHA-256 checksum, and installs to ~/.nuntly/bin.

Pin a specific version:

curl -fsSL https://raw.githubusercontent.com/nuntly/nuntly-cli/main/scripts/install.sh | bash -s -- --version v1.2.3

One-liner (Windows PowerShell)

irm https://raw.githubusercontent.com/nuntly/nuntly-cli/main/scripts/install.ps1 | iex

Installs nuntly.exe to %USERPROFILE%\.nuntly\bin and adds it to your user PATH.

Homebrew (macOS / Linux)

brew install nuntly/tap/nuntly

npm (requires Node.js 18+ or Bun)

npm install -g @nuntly/cli

npx (no install)

npx @nuntly/cli emails list

Standalone binary (no runtime required)

Download the binary for your platform from GitHub Releases:

Platform	Binary
macOS ARM (M1/M2/M3)	nuntly-darwin-arm64
macOS Intel	nuntly-darwin-x64
Linux x64	nuntly-linux-x64
Linux ARM	nuntly-linux-arm64
Windows x64	nuntly-windows-x64.exe

Each binary ships with a matching .sha256 checksum file.

Docker

docker run --rm -e NUNTLY_API_KEY=your-key ghcr.io/nuntly/cli emails list

Authentication

Interactive login (recommended)

nuntly login

Saves your API key to ~/.nuntly/config.json (chmod 600).

Environment variable

export NUNTLY_API_KEY=your-api-key
nuntly emails list

Per-command flag

nuntly --api-key your-key emails list

Priority: --api-key flag > NUNTLY_API_KEY env var > ~/.nuntly/config.json

Non-interactive use (CI / scripts)

Skip delete confirmation

Destructive commands (delete) prompt for confirmation by default. Pass -y / --yes to skip the prompt. When stdin is not a TTY, the CLI refuses to delete without --yes to avoid accidental destruction in pipelines.

nuntly --yes domains delete dm_5678efgh
nuntly -y webhooks delete wh_9012ijkl

Idempotency-Key for send commands

emails send, emails bulk send, messages reply, and messages forward support an --idempotency-key flag. The Nuntly API deduplicates by the Idempotency-Key HTTP header, so safe retries replay rather than duplicate.

When the flag is omitted the SDK auto-generates a UUID v4 per call. Pass an explicit key when your job runner needs a stable, replay-safe identifier.

nuntly emails send \
  --from hello@yourcompany.com \
  --to user@example.com \
  --subject "Welcome" \
  --text "Hi" \
  --idempotency-key "welcome-user-42"

nuntly messages reply mg_4567ghij \
  --text "thanks" \
  --idempotency-key "reply-mg_4567ghij-v1"

Quick start

# Login
nuntly login

# Send an email
nuntly emails send \
  --from hello@yourcompany.com \
  --to user@example.com \
  --subject "Welcome" \
  --html "<h1>Welcome!</h1>"

# List sent emails
nuntly emails list

# Get email details
nuntly emails retrieve em_01ka8k8s80gvx9604cn9am5st4

# Add a domain
nuntly domains create --name example.com --sending

# Create a webhook
nuntly webhooks create \
  --endpoint-url https://example.com/hooks \
  --events email.delivered,email.bounced

Bulk send

# From a JSON file
nuntly emails bulk send --file batch.json --idempotency-key mybatch-v1

# From stdin (pipe)
cat batch.json | nuntly emails bulk send

batch.json is an array of email envelopes matching CreateEmailRequest. The --idempotency-key lets you safely retry the batch without sending duplicates.

Exit codes

Code	Meaning
0	Success
1	Generic API error (HTTP 4xx/5xx not covered below)
2	Usage / validation error (unknown flag, missing argument, ...)
4	Authentication / authorization failure (HTTP 401 or 403)
5	Rate limit exceeded (HTTP 429)
130	SIGINT (Ctrl+C)

nuntly emails send --from ... --to ... --subject ...
case $? in
  0) echo "ok" ;;
  4) echo "rotate the API key" ;;
  5) echo "backing off, retrying later" ;;
  *) echo "see stderr for details" ;;
esac

Commands

nuntly login                          Save API key
nuntly emails send [options]          Send an email
nuntly emails list [options]          List sent emails
nuntly emails retrieve <id>           Get email details
nuntly emails cancel <id>             Cancel scheduled email
nuntly emails stats retrieve          Get sending statistics
nuntly emails events list <id>        Get email event history
nuntly emails content retrieve <id>   Get email content URLs
nuntly emails bulk send [options]     Send bulk emails
nuntly domains create [options]       Add a domain
nuntly domains list                   List domains
nuntly domains retrieve <id>          Get domain details
nuntly domains update <id> [options]  Update domain settings
nuntly domains delete <id>            Remove a domain
nuntly webhooks create [options]      Register webhook endpoint
nuntly webhooks list                  List webhooks
nuntly webhooks retrieve <id>         Get webhook details
nuntly webhooks update <id> [options] Update webhook
nuntly webhooks delete <id>           Remove webhook
nuntly api-keys create [options]      Generate API key
nuntly api-keys list                  List API keys
nuntly api-keys delete <id>           Revoke API key

Run nuntly <command> --help for details on any command.

Output formats

# Default: pretty-printed JSON
nuntly emails retrieve em_123

# Compact JSON (for piping to jq)
nuntly emails list --format json | jq '.data[].id'

# ID only (for scripting)
nuntly emails send ... --quiet
# em_01ka8k8s80gvx9604cn9am5st4

Delete confirmation

All delete commands require interactive confirmation:

$ nuntly domains delete dns_01ka8k8s80gvx9604cn9am5st4
? Delete domains dns_01ka8k8s80gvx9604cn9am5st4? (Y/n)

FAQ

Which install path should I pick? The standalone binary (Homebrew or one-liner) is the simplest: no runtime to install, no dependency conflicts. Pick the npm install if you already use Node.js or Bun in CI and want to pin a version per project.

How do I use a custom API base URL? Set NUNTLY_BASE_URL in the environment, or use the per-profile baseUrl option in ~/.nuntly/config.json.

Why does nuntly --help open in less? Commander.js paginates long help output. Pipe through cat (nuntly --help | cat) or set PAGER=cat to disable pagination.

How do I report a bug? Open an issue at github.com/nuntly/nuntly-cli/issues with the output of nuntly --version, the command you ran, and the error message.

Semantic versioning

This CLI follows Semantic Versioning 2.0. Pre-1.0 versions (alpha, beta) may include breaking command changes between minor versions.

After 1.0.0:

• Major version bumps signal breaking command, flag, or output changes
• Minor version bumps add new commands, flags, or output formats backwards-compatibly
• Patch version bumps include backwards-compatible fixes

The CLI version tracks the underlying Nuntly SDK version closely.

Contributing

Issues, bug reports, and feature requests are welcome at github.com/nuntly/nuntly-cli/issues.

Troubleshooting

nuntly: command not found Install the CLI globally with npm i -g @nuntly/cli, or use the curl one-liner from the Installation section. Confirm your npm global prefix is on $PATH (npm config get prefix).

Error: API key not found Run nuntly login to store a key on disk, or export NUNTLY_API_KEY=... in your shell. The CLI checks the environment variable first, then the on-disk credentials.

HTTP 401 errors on every command The current key is invalid, revoked, or scoped to a different organization. Run nuntly api-keys list from another working key (or the dashboard) to confirm the active key fingerprint, then nuntly login again with a fresh key.

command timeout or hangs Check network connectivity to api.nuntly.com and retry with --debug to print the full request/response trace. Corporate proxies typically require HTTPS_PROXY=... to be set in the environment.

License

MIT. See LICENSE.