MailUp Integrations, Built by an AI Agent
Put MailUp to work with AI and enterprise-grade automation
4.9/5 on G2·
Google for Startups Accelerator
No MailUp connector? The Agent builds one.
Web search for MailUp's public API docs, or hand over your own — either way, the Agent researches the real API surface and ships a working connector.
Try Knit FreeNot a block library. Real code.
Legacy automation tools like Zapier, Workato, and Make hand you a fixed library of pre-built steps to drag, drop, and configure around the edges. Knit's Integrations Agent writes real, custom MailUp integration code for your exact logic.
Legacy iPaaS
- Fixed library of pre-built steps — drag, drop, configure around the edges
- Capped by whatever the vendor's already built
- AI features bolted on after the fact
Knit Integrations Agent
- Real, inspectable code for your exact MailUp logic
- Auto-builds a missing MailUp connector itself
- Native LLM connectors built in, not bolted on
from knit import Knit
client = Knit(api_key=KNIT_API_KEY)
@client.on("new-email-sent")
def create_new_email_message(event):
return client.email_marketing.create_new_email_message(
integration_id=MAILUP_INTEGRATION_ID,
record_id=event["id"],
fields={
"source": "MailUp",
"synced_at": event["updated_at"],
},
# ...maps the event to a real "Create New Email Message" call
)Example: illustrative of what the Agent generates from a plain-English prompt — real, inspectable, and yours to edit.
Skip the engineering. Ship the workflows.
See what you can build with MailUp on Knit
MailUp → UpContent
Import newly added UpContent articles into MailUp newsletter templates.
MailUp → Ninja Forms
Sync submitter email details from Ninja Forms submissions to a contact list in MailUp.
MailUp → RevenueHunt
When a new lead is captured in RevenueHunt, sync their contact details to MailUp.
MailUp → Pinterest Lead ads
When a new lead is captured in Pinterest Lead ads, import the contact information into MailUp.
MailUp → UpContent
Import newly added UpContent articles into MailUp newsletter templates.
MailUp → Ninja Forms
Sync submitter email details from Ninja Forms submissions to a contact list in MailUp.
MailUp → RevenueHunt
When a new lead is captured in RevenueHunt, sync their contact details to MailUp.
MailUp → Pinterest Lead ads
When a new lead is captured in Pinterest Lead ads, import the contact information into MailUp.
MailUp → Eventbrite
When a new email message is created in a MailUp list, send the updates or notification to Eventbrite.
MailUp → Kajabi
When a recipient is pending in MailUp, update or add the lead in Kajabi.
MailUp → Wufoo
When a new email message template is created in MailUp, sync the template details to Wufoo.
MailUp → Facebook Lead Ads (for Business admins)
When a new group is created in MailUp, sync group members to Facebook Lead Ads for audience targeting.
MailUp → Eventbrite
When a new email message is created in a MailUp list, send the updates or notification to Eventbrite.
MailUp → Kajabi
When a recipient is pending in MailUp, update or add the lead in Kajabi.
MailUp → Wufoo
When a new email message template is created in MailUp, sync the template details to Wufoo.
MailUp → Facebook Lead Ads (for Business admins)
When a new group is created in MailUp, sync group members to Facebook Lead Ads for audience targeting.
See the APIs & webhooks enabling MailUp Integrations
The real endpoints Knit's Agent can call to turn a plain-English use case into working MailUp Integration code
The specified email message on the list has been sent.
A new email message template was created in the list. MailUp is a multi-list environment and templates are list-specific.
A new email message was created in the list. MailUp is a multi-list environment and messages are list-specific.
New group added to the specified list. MailUp is a multi-list environment and groups are list-specific.
There is a new pending recipient in the specified list. MailUp is a multi-list environment. Pending recipients are those that have not confirmed their subscription to the specified list.
There is a new subscriber in the specified list. MailUp is a multi-list environment.
Create a new email message on the specified list.
Add recipient to the specified group on the list.
Add a new group to the specified list. MailUp is a multi-list environment.
Adds a new recipient to the specified list as a subscriber.
Sends the specified message (previously created in MailUp in the specified List) to the email address specified.
Send a message to a predefined group in the specified list.
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StreamSend
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ManyReach
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Spotler Mail+
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Letterhead
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Createsend
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SendMails
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OHWO
OHWO is a business messaging tool used to create, deliver, and manage transactional email communications.
Vero
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Enormail
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FireDrum Email Marketing
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SMASHSEND Email Marketing
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Buttondown
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Customer Stories
See how leading technology firms are scaling their operations
Amazing Product With Exceptional Support from the team. By using Knit we managed to speed up our development by orders of magnitude.
A brilliant tool to let you seamlessly integrate with many different systems. It is very easy to integrate with and customer support is next level.
Seamless integration experience. Well-documented, self-explanatory APIs, and excellent service and support.
Easy to integrate. Knit's dashboard is intuitive for setting up and testing integrations, and the sandbox is extremely useful during development.
Knit shipped a brand-new Timesheet API in a week and handed us a ready-to-use NetSuite sandbox. That velocity is priceless when you're running payroll in 40+ countries.
#1 in Ease of Integrations
4.9 out of 5 stars on G2
Common questions about the MailUp automation
Is there a pre-built MailUp automation?
Not yet — MailUp isn't in Knit's Unified API or MCP Servers catalog today, so there's no pre-built connector for it either. The Integrations Agent can build the real automation (and the connector powering it) on demand instead of you waiting on our roadmap.
How does the Agent actually build the MailUp connector?
It researches MailUp's real public API documentation — authentication, endpoints, data schema — and writes a working connector against that real surface. You can also upload your own docs if MailUp's aren't public.
How long does it take?
Minutes to build a first working version, not weeks — you test it against real MailUp data before it goes anywhere near production.
What happens after the Agent builds it?
You own it. It runs the same way any Knit-built connector does — you are not left maintaining hand-rolled integration code yourself.
Could MailUp become a real pre-built connector later?
Yes — as apps get built and used through the Agent, the highest-demand ones are natural candidates to join the pre-built Unified API/MCP Servers catalog directly.