Email and SMS marketing, run from Claude.
Connect Sequence to Claude Code or claude.ai once. Then ask Claude for what you need: a welcome series, a flash sale, a win-back text. Claude writes it in your brand, builds the audience and sets the timing, and Sequence sends it.
Find everyone who hasn't opened an email in 90 days, write them a short win-back email, and send it Thursday at 10 AM.
What your agent does
- Step 1
list_contact_fields
Learns what your data looks like
Every token and form field on your contacts, with sample values, so Claude writes with real fields.
- Step 2
create_audience
Builds the audience
Static lists, or dynamic audiences from conditions on any property. Engagement rules, such as no opens in 90 days, feed an audience through a segment rule.
- Step 3
upsert_template
Writes the email
In your brand, with tokens for each contact's details.
- Step 4
preview_template
Shows you the result
The same render that sends, so what Claude shows you is what your contacts get.
- Step 5
send_test_email
Sends you a test
A one-off copy to your inbox, without enrolling anyone.
- Step 6
create_broadcast
Schedules the send
A one-time send to the audience at the time you named. Claude can reschedule it or swap the template until it goes out.
Excerpt of the call
{ "template_key": "win-back", "audience_key": "no-opens-90d", "scheduled_for": "2026-10-29T10:00:00-04:00" }
The same job, without a builder.
Builder-style marketing tools make you assemble every piece by hand. With Sequence, your agent does the assembly from one sentence, and you review the result.
In a builder, you
- Drag text, image and button blocks into an email editor, one email at a time
- Draw a workflow canvas with waits and if/then branches
- Stack AND/OR rules to define who belongs in each segment
- Paste merge tags into every subject line and paragraph
- Click through settings for send windows, senders and unsubscribe links
With Sequence, you
Type one sentence. Your agent makes 6 calls:
- list_contact_fields
- create_audience
- upsert_template
- preview_template
- send_test_email
- create_broadcast
Connect Claude Code
Run one command with your account key. Claude Code can call Sequence in your next session.
claude mcp add --transport http sequence \ https://setsequence.com/api/mcp \ --header "Authorization: Bearer cad_acct_…"Connect claude.ai
In claude.ai, open Settings, then Connectors, and add a custom connector. Paste the Sequence MCP URL shown in your Sequence settings and choose Connect. You sign in to Sequence, and Claude never sees your key.
What to ask Claude
Ask the way you would brief a marketer. Claude turns each request into tool calls. Ask it to show you a preview and send you a test before anything goes live.
- Welcome series
- “Email new signups a welcome with our discount code, then our best reviews a week later.”
- Lead follow-up
- “Text new website leads within five minutes, then email a quote reminder two days later.”
- Reporting
- “Which step of the onboarding sequence has the lowest click rate this month?”
- A/B test
- “Test a shorter subject line on the second email and keep the winner.”
Questions
Do I need Claude Code, or does claude.ai work?
Both work. Claude Code connects with your account key; claude.ai connects as a custom connector with OAuth sign-in.
Which Claude plans support custom connectors?
Custom connectors are an Anthropic feature, and plan availability is set by Anthropic. Check the connector settings in your Claude account.
Can Claude manage more than one brand?
Yes. One connection covers every brand you own. Name the brand in your request, and Claude passes it on each call.
Will Claude send without asking me?
It can activate sequences and schedule broadcasts, so tell it how you work. Many teams ask Claude to preview and send a test first.
Ask your agent. Sequence sends.
Start free with one brand and 3,000 emails a month. No card needed.