---
title: "Connect LeadSimple and PostStack - APIANT.ai"
description: "When \"Call Completed\" fires in LeadSimple, your agent runs \"Add a contact\" in PostStack."
canonical: "https://apiant.ai/connect/leadsimple-to-poststack"
---

# Connect LeadSimple and PostStack

When **Call Completed** fires in [LeadSimple](https://apiant.ai/connections/leadsimple), your agent runs **Add a contact** in [PostStack](https://apiant.ai/connections/poststack), or **Contact Updated (instant)** in PostStack to **Update Contact** in LeadSimple. Describe the whole flow and it is built, tested on every scenario and kept running.

LeadSimple **4** triggers LeadSimple **10** actions PostStack **7** triggers PostStack **31** actions

What the catalog holds today. Ask for anything missing and your agent reads the API documentation and adds it.

## What do you want LeadSimple and PostStack to do together?

Give your AI client this address.

`https://mcp.apiant.ai`

One 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.ai`

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

[Claude Code guide (opens in a new tab)](https://apiant.ai/docs/mcp/claude-code)

### 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)](https://apiant.ai/docs/mcp)

### 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)](https://apiant.ai/docs/mcp)

### Zed

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

[Setup guide (opens in a new tab)](https://apiant.ai/docs/mcp)

### 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)](https://apiant.ai/docs/mcp)

### 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)](https://apiant.ai/docs/mcp)

Example flows

## What LeadSimple and PostStack can do together

### From LeadSimple to PostStack

- When **Call Completed** in LeadSimple then **Add a contact** in PostStack
- When **Lead Created** in LeadSimple then **Add contacts to segment** in PostStack

### From PostStack to LeadSimple

- When **Contact Updated (instant)** in PostStack then **Update Contact** in LeadSimple
- When **New Contact (instant)** in PostStack then **Search Contact** in LeadSimple

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 LeadSimple and PostStack

## Triggers and actions 11 triggers · 41 actions

- Trigger

**Call Completed**

Triggers when a new call is completed.

- Trigger

**Lead Changes Tags**

Triggers when a lead's tags change.

- Trigger

**Lead Created**

Triggers when a new lead is created.

- Trigger

**Lead Is Reassigned**

Triggers when a lead is reassigned.

- Action

**Create Call**

Creates a Call in your account

- Action

**Get Lead**

Gets a Lead in your account by ID.

- Action

**Search Contact**

Searches a contact in your account by name, phone number or email address.

- Action

**Search Property**

Searches a Property in your account by name or address.

- Action

**Search Unit**

Searches the units on the property by the Unit Number

- Action

**Search User**

Searches a user in your account by name or email address.

- Action

**Update Contact**

Updates a Contact in your account.

- Action

**Update Lead**

Updates a Lead in one of your Pipelines. You'll need to specify a Pipeline and a Stage.

- Action

**Update Property**

Updates a Property.

- Action

**Update Unit**

Updates a Unit.

- 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.

## Each app on its own

- [ **LeadSimple** LeadSimple is the CRM that property management and real estate companies use to scale and grow.](https://apiant.ai/connections/leadsimple)
- [ **PostStack** EU-hosted email API for transactional and marketing email, with contacts, broadcasts, and analytics](https://apiant.ai/connections/poststack)

Reviews

## What our customers say

## More from LeadSimple

- [ **LeadSimple to Brave Search API** Brave Search API — independent, privacy-respecting web, image, video, and news search powered by Brave's own...](https://apiant.ai/connect/leadsimple-to-brave-search-api)
- [ **LeadSimple to Thunderbit** Extract web pages as Markdown or structured data for AI apps](https://apiant.ai/connect/leadsimple-to-thunderbit)
- [ **LeadSimple to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/leadsimple-to-salesforce)
- [ **LeadSimple to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/leadsimple-to-slack)
- [ **LeadSimple to Mailchimp** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/leadsimple-to-mailchimp)
- [ **LeadSimple to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/leadsimple-to-stripe)

## More into PostStack

- [ **HubSpot to PostStack** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-poststack)
- [ **Google Sheets to PostStack** Google Sheets is Google's online spreadsheet app for creating, editing and sharing spreadsheets.](https://apiant.ai/connect/google-sheets-to-poststack)
- [ **Gmail to PostStack** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-poststack)
- [ **Google Calendar to PostStack** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-poststack)
- [ **Google Drive to PostStack** Google Drive is a cloud storage solution for uploading, sharing, and collaborating on files across devices...](https://apiant.ai/connect/google-drive-to-poststack)
- [ **Mailchimp to PostStack** Mailchimp marketing automation and email platform.](https://apiant.ai/connect/mailchimp-to-poststack)

Questions

## LeadSimple and PostStack, answered

###

### What can start an automation from LeadSimple?

Any of LeadSimple's 4 triggers in the catalog, including Call Completed, Lead Created, Lead Changes Tags and Lead Is Reassigned. Describe the moment in plain language and your agent picks the right one.

###

### What can your agent do in PostStack when something happens in LeadSimple?

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 LeadSimple?

Yes. When something happens in PostStack, your agent can act in LeadSimple too. This page covers both directions: PostStack's triggers and LeadSimple's actions are listed here as well.

###

### Do I have to build a connector for LeadSimple 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 LeadSimple 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.
