---
title: "Connect freee and PostStack - APIANT.ai"
description: "When \"New manual journal\" fires in freee, your agent runs \"Add a contact\" in PostStack, or \"Contact Updated (instant)\" in PostStack to \"Add deal\" in freee."
canonical: "https://apiant.ai/connect/freee-to-poststack"
---

# Connect freee and PostStack

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

freee **2** triggers freee **22** 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 freee 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 freee and PostStack can do together

### From freee to PostStack

- When **New manual journal** in freee then **Add a contact** in PostStack
- When **Unsettled Deal** in freee then **Add contacts to segment** in PostStack

### From PostStack to freee

- When **Contact Updated (instant)** in PostStack then **Add deal** in freee
- When **New Contact (instant)** in PostStack then **Update deal** in freee

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 freee and PostStack

## Triggers and actions 9 triggers · 53 actions

- Trigger

**New manual journal**

Triggers when a new manual journal (振替伝票) is created in the selected freee company.

- Trigger

**Unsettled Deal**

Triggers when a new unsettled income or expense deal (取引) appears in the selected freee company.

- Action

**Add account item**

Creates a new account item (勘定科目) in a freee Accounting company and returns the created account item.

- Action

**Add deal**

Creates an income or expense deal (取引) in a freee company, with its line items and, optionally, the payments that settle it.

- Action

**Add manual journal**

Creates a manual journal (振替伝票) in a freee company, with balanced debit and credit lines.

- Action

**Add transfer**

Creates a transfer (口座振替) in a freee company, moving money from one bank account, credit card or wallet to one or more other accounts.

- Action

**Create Item**

Creates a new item (品目) in a freee company, which can then be selected on deals and other transactions.

- Action

**Create Partner**

Creates a new partner (取引先) — a customer or supplier — in a freee company, for use on deals and invoices.

- Action

**Create Tag**

Creates a new memo tag (メモタグ) in a freee company, which can then be attached to deal and transfer line items.

- Action

**Delete deal**

Deletes an income or expense deal (取引) from a freee company.

- Action

**Get deal**

Returns one income or expense deal (取引) in a freee company, including its detail lines, payments, renewals and attached receipts.

- Action

**Get partner**

Returns one partner (取引先) of a freee company by its id, including contact, address, bank account and payment-term settings.

- Action

**Get Section**

Returns a single section (department) of a freee company by its id, including its name, official name, shortcuts and availability.

- Action

**Get Tag**

Returns one memo tag (メモタグ) in a freee company by its id, including its name, shortcuts and last update date.

- Action

**Get Transfer**

Returns one transfer (振替) between accounts in a freee company, including its destination account lines.

- Action

**List account items**

Returns the account items (勘定科目) defined for a freee company, optionally filtered by keyword or update date.

- Action

**List companies**

Returns every freee company (事業所) the connected user belongs to, with each company's id, name, display name, company number and the user's role there.

- Action

**List deals**

Returns the income and expense deals (取引) recorded in a freee company, optionally filtered by partner, account item, settlement status, type, dates or remaining amount.

- Action

**List items**

Returns the items (品目) registered in a freee company, including items marked as not in use. Optionally limited to items updated within a date range.

- Action

**List manual journals**

Returns the manual journals (振替伝票) of a freee company, optionally filtered by date, account item, amount, partner, item, section, segment tags, comments, adjustment type or journal number.

- Action

**List partners**

Returns the partners (取引先) registered in a freee company, optionally filtered by keyword or last-updated date. Archived partners are not included.

- Action

**List walletables**

Returns the company's walletables — bank accounts, credit cards and other payment accounts such as cash — optionally with balances and sync status.

- Action

**Update deal**

Updates an existing income or expense deal (取引) in freee Accounting, replacing its dates, partner, reference number, line items and attached receipts.

- Action

**Update partner**

Updates an existing partner (取引先) in freee Accounting. Only the details you fill in are changed; everything else keeps its current value.

- 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

- [ **freee** freee provides cloud-based accounting & HR software for SMBs in Japan to automate and simplify back-office...](https://apiant.ai/connections/freee)
- [ **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 freee

- [ **freee to HubSpot** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/freee-to-hubspot)
- [ **freee to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/freee-to-salesforce)
- [ **freee to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/freee-to-slack)
- [ **freee to Google Sheets** Google Sheets](https://apiant.ai/connect/freee-to-google-sheets)
- [ **freee to Gmail** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/freee-to-gmail)
- [ **freee to Google Calendar** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/freee-to-google-calendar)

## 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](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

## freee and PostStack, answered

###

### What can start an automation from freee?

Any of freee's 2 triggers in the catalog, including New manual journal and Unsettled Deal. Describe the moment in plain language and your agent picks the right one.

###

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

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 freee?

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

###

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