Integration
Connect eSputnik and PostStack
When New Contact fires in eSputnik, your agent runs Add a contact in PostStack, or Contact Updated (instant) in PostStack to Add/Update Contact in eSputnik. 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 eSputnik and PostStack 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 eSputnik and PostStack can do together
From eSputnik to PostStack
When New Contact in eSputnik
then Add a contact in PostStack
When New Contact in Segment in eSputnik
then Add contacts to segment in PostStack
From PostStack to eSputnik
When Contact Updated (instant) in PostStack
then Add/Update Contact in eSputnik
When New Contact (instant) in PostStack
then Find contacts in eSputnik
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 eSputnik and PostStack
Triggers and actions 9 triggers · 43 actions
Trigger
New ContactTriggered when a new contact is created in eSputnik, optionally limited to contacts matching the details you enter.
Trigger
New Contact in SegmentTriggers when a contact is added to the eSputnik segment you choose.
Action
Add contact to segmentAdds one or more contacts to a static segment in eSputnik, identified by contact IDs or external customer IDs.
Action
Add emails to unsubscribed listAdds one or more email addresses to the eSputnik list of unsubscribed contacts.
Action
Add/Update ContactAdds a new contact or updates the existing matching contact, including its channels, address and additional fields, and returns the contact's ID.
Action
Delete contactDeletes a contact by its eSputnik contact ID, optionally erasing all of the contact's data permanently.
Action
Delete contact from segmentRemoves one or more contacts from a static segment, identified by their eSputnik contact IDs or external customer IDs.
Action
Find contactsReturns up to 500 contacts that match the specified external ID, email address, phone number, first name or last name.
Action
Get contactReturns an eSputnik contact by ID, including its channels, address, segments and additional field values. An error occurs if the contact is not found.
Action
List segmentsReturns the contact segments in the eSputnik account, optionally narrowed by name, with each segment's id, name and type.
Action
Send EmailSends an email message to one or more recipients. A new contact is created for any address that does not already exist in eSputnik.
Action
Send EventSends a backend event for a contact to eSputnik, where it can start workflows and supply dynamic content for messages.
Action
Send Viber messageSends a Viber message to a list of phone numbers or to a segment, and returns the queueing result for each recipient. A new contact is created for a phone number that does not exist yet.
Action
Subscribe ContactSubscribes a contact through a double opt-in flow, creating an unconfirmed contact if none exists or updating the existing one, and returns the contact's ID and email subscription status.
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.
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
eSputnik and PostStack, answered
What can start an automation from eSputnik?
Any of eSputnik's 2 triggers in the catalog, including New Contact and New Contact in Segment. Describe the moment in plain language and your agent picks the right one.
What can your agent do in PostStack when something happens in eSputnik?
Any of PostStack's 31 actions, including Send an email, Send broadcast, Send emails in batch and Update a contact. Your agent maps the data both ways and tests every scenario before it ships.
Can it also run from PostStack to eSputnik?
Yes. When something happens in PostStack, your agent can act in eSputnik too. This page covers both directions: PostStack's triggers and eSputnik's actions are listed here as well.
Do I have to build a connector for eSputnik or PostStack?
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 eSputnik and PostStack 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.