Integration
Connect PostStack and SmartEmailing
When Contact Updated (instant) fires in PostStack, your agent runs Add Contact list in SmartEmailing, or New Contact in SmartEmailing to Add a contact in PostStack. Describe the whole flow and it is built, tested on every scenario and kept running.
What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.
Build solutions, not workarounds.
What do you want PostStack and SmartEmailing to do together?
Ask the assistant
Connect your AI client
Give your AI client this address.
https://mcp.apiant.aiOne connection does both: ask your client to act in an app once, or have it build an automation that keeps running. Any client that takes a remote MCP server. Nothing to install. Create your free account, then sign in once in your browser.
Set it up in your client
Claude Code
Run this in the directory you want to work in.
claude mcp add --transport http -s project apiant-ai https://mcp.apiant.aiStart Claude Code there, approve the server, and sign in in the browser page it opens.
Claude Code guide (opens in a new tab)Claude, web and desktop
Open Customize, then Connectors, then Add custom connector, and paste the address. On Team and Enterprise an owner adds it first.
Setup guide (opens in a new tab)Cursor
Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.
Setup guide (opens in a new tab)Zed
Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.
Setup guide (opens in a new tab)Codex and the ChatGPT desktop app
Open Settings, then MCP servers, then Add server, and choose Streamable HTTP. From the terminal, Codex takes the address with its own add command and then signs you in.
Setup guide (opens in a new tab)Any other MCP client
Paste the address where the client asks for a remote MCP server URL, and name the server apiant-ai where it lets you. APIANT's skills reach the client over the same connection.
Setup guide (opens in a new tab)Example flows
What PostStack and SmartEmailing can do together
From PostStack to SmartEmailing
When Contact Updated (instant) in PostStack
then Add Contact list in SmartEmailing
When New Contact (instant) in PostStack
then Update Contact list in SmartEmailing
From SmartEmailing to PostStack
When New Contact in SmartEmailing
then Add a contact in PostStack
When Updated Contact in SmartEmailing
then Add contacts to segment in PostStack
Starting points drawn from the triggers and actions in the catalog today. Describe the flow you need, at any depth, and your agent builds it and tests every scenario before it ships.
Everything your agent can do with PostStack and SmartEmailing
Triggers and actions 9 triggers · 46 actions
Trigger
Contact Deleted (instant)Fires when a contact is deleted (event: contact.deleted).
Trigger
Contact Updated (instant)Fires when a contact is updated (event: contact.updated).
Trigger
Email Bounced (instant)Fires when an email bounces (event: email.bounced).
Trigger
Email Delivered (instant)Fires when an email is delivered (event: email.delivered).
Trigger
New Contact (instant)Fires when a contact is created (event: contact.created).
Trigger
New Inbound EmailPolls for newly received inbound emails.
Trigger
New Sent Email (instant)Fires when an email is sent (event: email.sent).
Action
Add a broadcastCreate a new marketing broadcast.
Action
Add a contactCreate a new contact.
Action
Add a segmentCreate a new manual contact segment.
Action
Add a templateCreate a new email template.
Action
Add contacts to segmentAdd contacts to an existing segment.
Action
Add suppressionAdd an address to the suppression list.
Action
Cancel broadcastCancel an in-flight broadcast.
Action
Cancel emailCancel a scheduled or queued email before it sends.
Action
Delete a contactDelete a contact.
Action
Delete a templateDelete an email template.
Action
Get a contactFetch one contact by ID.
Action
Get a templateFetch one email template by ID.
Action
Get broadcastRetrieve one broadcast by its public id, including the HTML and text bodies that the list endpoint omits.
Action
Get emailFetch one sent or queued email by ID.
Action
Get email eventsGet the delivery event timeline for one email.
Action
Get inbound emailFetch one received inbound email by ID.
Action
Import contactsBulk-import a CSV list of contacts.
Action
List broadcastsList marketing broadcasts.
Action
List contactsList contacts in the account.
Action
List emailsList sent, queued, and scheduled emails.
Action
List inbound emailsList emails received via inbound parsing.
Action
List segmentsList contact segments.
Action
List suppressed addressesList addresses on the suppression list.
Action
List templatesList email templates.
Action
Send an emailSend a transactional email through PostStack.
Action
Send broadcastStart sending a broadcast to its recipients.
Action
Send emails in batchSend up to 100 emails in a single request.
Action
Update a contactUpdate an existing contact's fields.
Action
Update a templateUpdate an email template, creating a new version.
Action
Update emailReschedule a queued email's send time.
Action
Validate email addressCheck whether an email address is valid and deliverable.
Trigger
New ContactTriggers when a new contact is added to your SmartEmailing account.
Trigger
Updated ContactTriggers when an existing contact is updated in SmartEmailing.
Action
Add Contact listCreates a new contact list in SmartEmailing.
Action
Add Custom fieldCreates a new contact custom field in SmartEmailing with the given name and type.
Action
Delete ContactPermanently deletes a contact and anonymizes its data (GDPR forget). This cannot be undone.
Action
Get ContactReturns a single contact by email address or ID, including contact list memberships and custom field values.
Action
Get Contact listReturns a single contact list by its ID with all its properties, such as name, sender details and engagement rates.
Action
List Contact listsReturns all contact lists in your SmartEmailing account.
Action
List ContactsReturns contacts in your SmartEmailing account, optionally filtered by email, name, company and other contact details, including their list memberships and custom field values.
Action
List Contacts in listReturns the contacts that belong to a contact list, with their details and list memberships.
Action
List Custom fieldsReturns the custom field definitions set up in your SmartEmailing account, optionally with their options.
Action
List NewslettersReturns your finished newsletters with their sender details, send times and open, click and unsubscribe counts.
Action
Send custom emailSends a SmartEmailing email or email template to one recipient, with optional subject, preheader and dynamic content overrides.
Action
Send transactional emailSends a transactional email (no unsubscribe link) to one recipient, either from a saved email/template or from a subject and body you supply.
Action
Unsubscribe ContactUnsubscribes a contact from a chosen contact list.
Action
Update Contact email addressChanges a contact's email address in SmartEmailing, moving all of the contact's data to the new address.
Action
Update Contact listUpdates an existing contact list's name, public name, sender name, sender email or reply-to address. Only the values you provide are changed.
No trigger or action matches that. Ask your agent to add it: it reads the API documentation and builds what you describe.
Each app on its own
Reviews
What our customers say
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Questions
PostStack and SmartEmailing, answered
What can start an automation from PostStack?
Any of PostStack's 7 triggers in the catalog, including Contact Updated (instant), New Contact (instant), New Inbound Email and New Sent Email (instant). Describe the moment in plain language and your agent picks the right one.
What can your agent do in SmartEmailing when something happens in PostStack?
Any of SmartEmailing's 15 actions, including Send custom email, Send transactional email, Update Contact email address and Update Contact list. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from SmartEmailing to PostStack?
Yes. When something happens in SmartEmailing, your agent can act in PostStack too. This page covers both directions: SmartEmailing's triggers and PostStack's actions are listed here as well.
Do I have to build a connector for PostStack or SmartEmailing?
No. Both are in the catalog with their triggers and actions. You describe the automation; your agent builds it, tests every scenario and keeps it running.
Can my AI client use PostStack and SmartEmailing without building an automation?
Yes. With your AI client connected to APIANT, ask it to do something in either app once and it runs that action on the spot. Ask for an automation and your agent builds it, tests every scenario and keeps it running. One connection covers both.
What happens when something fails?
Your agent works that out for you. It plans the failure paths along with the happy path, then tests every scenario before it ships.
Is there a free plan?
Yes. Every plan includes the agent, including free, and building from your own AI client spends no assistant credits.