Connect PostStack to any app

EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics

Connects with an API keypoststack.dev

7 triggers 31 actions

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 to automate with PostStack?

Ask the assistant

Connect your AI client

Give your AI client this address.

https://mcp.apiant.ai

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.ai

Start Claude Code there, approve the server, and sign in in the browser page it opens.

Claude Code guide

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

Cursor

Add the address to your MCP configuration as a server URL. Cursor signs you in in your browser.

Setup guide

Zed

Open Settings, then AI, then MCP Servers, then Add Server, then Add Remote Server.

Setup guide

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

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

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What your agent can do with PostStack

Triggers and actions 7 triggers · 31 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 Email
Polls for newly received inbound emails.
Trigger
New Sent Email (instant)
Fires when an email is sent (event: email.sent).
Action
Add a broadcast
Create a new marketing broadcast.
Action
Add a contact
Create a new contact.
Action
Add a segment
Create a new manual contact segment.
Action
Add a template
Create a new email template.
Action
Add contacts to segment
Add contacts to an existing segment.
Action
Add suppression
Add an address to the suppression list.
Action
Cancel broadcast
Cancel an in-flight broadcast.
Action
Cancel email
Cancel a scheduled or queued email before it sends.
Action
Delete a contact
Delete a contact.
Action
Delete a template
Delete an email template.
Action
Get a contact
Fetch one contact by ID.
Action
Get a template
Fetch one email template by ID.
Action
Get broadcast
Retrieve one broadcast by its public id, including the HTML and text bodies that the list endpoint omits.
Action
Get email
Fetch one sent or queued email by ID.
Action
Get email events
Get the delivery event timeline for one email.
Action
Get inbound email
Fetch one received inbound email by ID.
Action
Import contacts
Bulk-import a CSV list of contacts.
Action
List broadcasts
List marketing broadcasts.
Action
List contacts
List contacts in the account.
Action
List emails
List sent, queued, and scheduled emails.
Action
List inbound emails
List emails received via inbound parsing.
Action
List segments
List contact segments.
Action
List suppressed addresses
List addresses on the suppression list.
Action
List templates
List email templates.
Action
Send an email
Send a transactional email through PostStack.
Action
Send broadcast
Start sending a broadcast to its recipients.
Action
Send emails in batch
Send up to 100 emails in a single request.
Action
Update a contact
Update an existing contact's fields.
Action
Update a template
Update an email template, creating a new version.
Action
Update email
Reschedule a queued email's send time.
Action
Validate email address
Check whether an email address is valid and deliverable.

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Questions

PostStack, 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 PostStack?

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.

Which apps can PostStack connect to?

Any app in the catalog; the list on this page pairs PostStack with each of them. If the other app is missing, point your agent at its API documentation and it builds the connector.

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.