How to Connect Loops to Claude (and What It Can't Do)
Loops is probably the most agent-friendly email platform on this site — and yet, as of mid-2026, its official MCP server still says “coming soon.” The Loops agents page ships a CLI, an OpenAPI-spec’d REST API, official SDKs, and installable agent skills that teach coding agents like Claude Code how to work with Loops. MCP is listed there as the next step, promising read/write access to contacts, events, and content, but it hasn’t landed. So today, connecting the Claude app to Loops means a hosted wrapper around the Loops API — Composio and Pipedream both offer one — added to Claude as a custom connector on a paid Claude plan. And whatever server you use, Claude only touches Loops mid-conversation. Your product can fire events at Loops all night; none of them reach Claude.
Two different “Claude + Loops” setups, easy to confuse
Worth separating, because Loops’ own marketing blurs them:
Claude Code + Loops agent skills. If you’re a developer wiring Loops into your product, this path is genuinely official and genuinely good — the CLI and skills let a coding agent install Loops, create transactional templates, send test events, and verify your integration from the terminal.
Claude (the assistant) + your Loops account. This is what most people searching “claude loops integration” want: chat with your lifecycle email data. That’s the part with no first-party server yet. The aggregator MCPs cover the API’s main objects — contacts and their properties, events, transactional sends, mailing lists — with your Loops API key held by the aggregator.
Once connected, the useful prompts lean on Loops’ actual model of the world:
- “Look up this contact by email and tell me her properties, mailing list memberships, and whether she’s still subscribed.”
- “Send the invoice-receipt transactional email to this customer with these data variables filled in.”
- “How many contacts have userGroup set to trial but no signed-up event in the last 30 days?”
Why the chat window is the wrong shape for lifecycle email
Loops is built around events: your app sends a signed-up or upgraded event, and a loop takes over from there. Claude can send those events through the API when you ask — but it cannot react to anything. No Claude conversation begins because a contact churned, hit a usage milestone, or bounced off an onboarding loop. Anthropic’s connector architecture has no triggers and no background execution; a session exists only between your first message and your last. Claude is therefore a fine interactive layer over Loops — audits, one-off transactional sends, contact spelunking — and a non-starter as the thing that keeps lifecycle email running.
There’s also a smaller friction: until the official MCP ships, you’re routing your Loops API key through a third-party aggregator. Scope it, and revoke it if you stop using the connector.
The trigger layer: Carly
Carly picks up where the chat window stops. It’s an AI executive assistant whose workflows start on events and run in the cloud — nothing depends on you being present or your laptop being awake. Around Loops, that unlocks the obvious moves: a new Stripe customer gets created as a Loops contact with the right properties the moment payment clears; a cancelled event triggers a personal-sounding check-in email sent from your own inbox, not a broadcast; every Friday, engagement across your onboarding loops lands in your email with week-over-week deltas.
Building one is a dialogue: tell Carly “every new paying customer should end up in Loops with plan and signup-source properties set,” and it interviews you on the details before assembling the workflow. AI agents start at $35/month, and steps in a workflow that don’t use AI run free and unlimited. Carly connects to 200+ tools — see integrations and the Loops integration page.
Claude-over-Loops vs Carly at a glance
| Claude + Loops MCP (via aggregator) | Carly | |
|---|---|---|
| Inspect contacts, properties, list membership | Yes, in chat | Yes |
| Fire a transactional email on request | Yes, in chat | Yes, on triggers |
| Create a contact the moment payment clears | No — chat only | Yes |
| Weekly loop-engagement report, unprompted | No | Yes |
| Official first-party MCP | Not yet (“coming soon” at loops.so/agents) | Not needed |
| Runs with your laptop closed | No | Yes (cloud) |
| Entry cost | Paid Claude plan + aggregator account | AI agents from $35/mo |
Frequently Asked Questions
Does Claude integrate with Loops?
Yes, with an asterisk. Loops has no official MCP server yet — its agents page marks MCP as coming soon as of mid-2026 — so the Claude app connects through aggregator-hosted MCPs (Composio, Pipedream) wrapping the Loops API, added as a custom connector on a paid Claude plan. Claude Code users separately get official Loops CLI tooling and agent skills.
When is the official Loops MCP server coming?
Loops hasn’t published a date. The loops.so/agents page describes it as reading and writing contacts, events, and content from any MCP client. Until it ships, the aggregator route is the practical option — check that page before setting anything up, since a first-party server would be the better choice the day it exists.
Can Claude add new signups to a loop automatically?
No. Claude acts only inside conversations you start; it can’t listen for your product’s events or Loops’ own activity. Signup-triggered contact creation and enrollment is agent-platform territory — Carly does it on triggers, 24/7.
Can Claude send transactional emails through Loops?
On request, yes — the API’s transactional endpoint is exposed by the aggregator wrappers, so you can have Claude fire a specific transactional ID with data variables for a specific contact. It’s handy for one-offs and testing, not a substitute for your app calling the API directly.
What’s the cheapest way to automate Loops without code?
Carly builds the workflow from a plain-English description and runs it in the cloud. AI agents start at $35/month, and steps in a workflow that don’t use AI run free and unlimited.
More: Claude connectors · Can Claude send emails · Claude vs Carly · Claude Cowork alternatives · Best AI email tools · Claude + Postmark · Claude + Resend · Claude + SendGrid
Ready to automate your busywork?
Carly schedules, researches, and briefs you—so you can focus on what matters.
See what people say
"Before Carly, I relied on a Calendly link, but the whole process felt impersonal and not very professional. Carly changed that by handling all the back-and-forth, so I'm no longer stuck in endless email threads trying to line up schedules.
Now Carly reaches out to candidates, shares my real-time availability, lets them pick a slot, then sends a Zoom link and drops it straight into my calendar. She sends reminders to both of us before each call, which has significantly reduced no-shows and last-minute confusion.
On top of scheduling, Carly acts like a full executive assistant, sending me my schedule the night before so I can prepare for each call. It reminds me of the old x.ai assistant, but Carly is noticeably smarter, faster, and better suited to my healthcare recruitment business."
