---
title: "Connect Modusign and Sellsy - APIANT.ai"
description: "When \"Document Updated\" fires in Modusign, your agent runs \"Create Contact\" in Sellsy, or \"New Company\" in Sellsy to \"Add document request\" in Modusign."
canonical: "https://apiant.ai/connect/modusign-to-sellsy"
---

# Connect Modusign and Sellsy

When **Document Updated** fires in [Modusign](https://apiant.ai/connections/modusign), your agent runs **Create Contact** in [Sellsy](https://apiant.ai/connections/sellsy), or **New Company** in Sellsy to **Add document request** in Modusign. Describe the whole flow and it is built, tested on every scenario and kept running.

Modusign **1** trigger Modusign **12** actions Sellsy **9** triggers Sellsy **15** actions

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

## What do you want Modusign and Sellsy 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 Modusign and Sellsy can do together

### From Modusign to Sellsy

- When **Document Updated** in Modusign then **Create Contact** in Sellsy
- When **Document Updated** in Modusign then **Create Task** in Sellsy

### From Sellsy to Modusign

- When **New Company** in Sellsy then **Add document request** in Modusign
- When **New Contact** in Sellsy then **Request Document With Template** in Modusign

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 Modusign and Sellsy

## Triggers and actions 10 triggers · 27 actions

- Trigger

**Document Updated**

Triggers when a document is created, signed, completed, or aborted.

- Action

**Add document request**

Request signatures on a document (signature request).

- Action

**Add label**

Creates a new label in Modusign.

- Action

**Cancel document request**

Cancel a pending signature request.

- Action

**Delete label**

Delete a label.

- Action

**Delete template**

Delete a template.

- Action

**Get Document**

Retrieves the details of a single Modusign document by its ID.

- Action

**Get template**

Get a template by id.

- Action

**Get user**

Gets the Modusign user whose credentials the connection uses.

- Action

**Remind Signing**

Resend signing request notifications to signers who did not sign.

- Action

**Request Document With Template**

Create a document using a template and request signers to sign it.

- Action

**Search Documents**

Search for documents with specific conditions.

- Action

**Update label**

Update a label.

- Trigger

**Deleted Task**

Triggers when a task is deleted.

- Trigger

**New Company**

Triggers when a new company (client or prospect) is created.

- Trigger

**New Contact**

Triggers when a new contact is created.

- Trigger

**New Opportunity**

Triggers when a new opportunity is created.

- Trigger

**New Task**

Triggers when a new task is created.

- Trigger

**Updated Company**

Triggers when a company (client or prospect) is updated.

- Trigger

**Updated Contact**

Triggers when a contact is updated.

- Trigger

**Updated Opportunity Status**

Triggers when the status is changed on an opportunity.

- Trigger

**Updated Task**

Triggers when a task is updated.

- Action

**Create Annotation**

Creates a new annotation.

- Action

**Create Company**

Creates a new company (prospect or client).

- Action

**Create Contact**

Creates a new contact.

- Action

**Create Opportunity**

Creates an opportunity.

- Action

**Create Task**

Creates a new Task.

- Action

**Create/Update Company**

Creates a new company (prospect or client). Make an update if we found an existing company with provided email.

- Action

**Create/Update Contact**

Creates a new contact. Make an update if we found an existing contact with provided email.

- Action

**Delete Task**

Deletes a Sellsy task.

- Action

**Find Company**

Finds an existing company (prospect or client).

- Action

**Find Contact**

Finds an existing contact.

- Action

**Get Opportunity**

Returns one Sellsy opportunity by id.

- Action

**Get Task**

Returns one Sellsy task by id.

- Action

**List Opportunity Pipeline Steps**

Lists the steps of a pipeline; supplies the required step id for Create Opportunity.

- Action

**Update Opportunity**

updates an existing opportunity's fields, including its status (open/won/lost/cancelled/...) and pipeline step; a status change fires the opportunity.status webhook event.

- Action

**Update Task**

updates a task's title, description, due date, status etc.; fires task.updated.

## Each app on its own

- [ **Modusign** Modusign is a simple electronic contract service that makes signing a contract and its storage at once at...](https://apiant.ai/connections/modusign)
- [ **Sellsy** Sellsy is a French SaaS that helps SMBs and VBEs manage sales, invoicing, marketing, and cash flow in one...](https://apiant.ai/connections/sellsy)

Reviews

## What our customers say

## More from Modusign

- [ **Modusign to timeBuzzer** timeBuzzer is a simple time tracker and timesheet app to track hours worked across projects in real time.](https://apiant.ai/connect/modusign-to-timebuzzer)
- [ **Modusign to Salesforce** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/modusign-to-salesforce)
- [ **Modusign to Slack** Slack is a messaging platform for teams. Post messages, manage channels, users, reminders, and react to...](https://apiant.ai/connect/modusign-to-slack)
- [ **Modusign to Stripe** Stripe is a payment processing platform for online businesses.](https://apiant.ai/connect/modusign-to-stripe)
- [ **Modusign to Shopify** Shopify is a commerce platform for online stores and retail point-of-sale.](https://apiant.ai/connect/modusign-to-shopify)
- [ **Modusign to QuickBooks Online** QuickBooks Online accounting — manage customers, invoices, bills, payments, vendors, expenses, and more via...](https://apiant.ai/connect/modusign-to-quickbooks-online)

## More into Sellsy

- [ **Discord to Sellsy** Discord is an all-in-one voice and text chat for gamers.](https://apiant.ai/connect/discord-to-sellsy)
- [ **HubSpot to Sellsy** HubSpot is your all-in-one stop for all of your marketing software needs.](https://apiant.ai/connect/hubspot-to-sellsy)
- [ **Salesforce to Sellsy** Salesforce is a leading enterprise customer relationship management (CRM) platform.](https://apiant.ai/connect/salesforce-to-sellsy)
- [ **Google Sheets to Sellsy** Google Sheets](https://apiant.ai/connect/google-sheets-to-sellsy)
- [ **Gmail to Sellsy** Gmail is Google’s email service, featuring spam protection, search functions, and seamless integration with...](https://apiant.ai/connect/gmail-to-sellsy)
- [ **Google Calendar to Sellsy** Google Calendar is a time management tool providing scheduling features, event reminders, and integration...](https://apiant.ai/connect/google-calendar-to-sellsy)

Questions

## Modusign and Sellsy, answered

###

### What can start an automation from Modusign?

Any of Modusign's 1 trigger in the catalog, including Document Updated. Describe the moment in plain language and your agent picks the right one.

###

### What can your agent do in Sellsy when something happens in Modusign?

Any of Sellsy's 15 actions, including Create Annotation, Create Company, Create Contact and Create Opportunity. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from Sellsy to Modusign?

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

###

### Do I have to build a connector for Modusign or Sellsy?

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 Modusign and Sellsy 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.
