---
title: "Connect Modusign to Fly.io Machines API - APIANT.ai"
description: "When \"Document Updated\" fires in Modusign, your agent runs \"Create App\" in Fly.io Machines API."
canonical: "https://apiant.ai/connect/modusign-to-fly-io-machines-api"
---

# Connect Modusign to Fly.io Machines API

When **Document Updated** fires in [Modusign](https://apiant.ai/connections/modusign), your agent runs **Create App** in [Fly.io Machines API](https://apiant.ai/connections/fly-io-machines-api). Describe the whole flow and it is built, tested on every scenario and kept running.

Modusign **1** trigger Modusign **12** actions Fly.io Machines API **11** 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 Fly.io Machines API 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 can start in Fly.io Machines API

- When **Document Updated** in Modusign then **Create App** in Fly.io Machines API
- When **Document Updated** in Modusign then **Create Machine** in Fly.io Machines API

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 Fly.io Machines API

## Triggers and actions 1 trigger · 23 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.

- Action

**Create App**

Creates a new Fly.io app in the chosen organization and returns its id.

- Action

**Create Machine**

Creates a new Machine in a Fly.io app from the image and configuration you provide, and returns the created Machine.

- Action

**Create Volume**

Creates a persistent storage volume for a Fly.io app in the chosen region.

- Action

**Delete App**

Deletes a Fly.io app by its name.

- Action

**Delete Machine**

Deletes a Machine from a Fly.io app, optionally force-killing it if it is still running.

- Action

**Delete Volume**

Destroys a volume in a Fly.io app and returns the deleted volume's details.

- Action

**Extend Volume**

Extends a Fly.io volume to a larger size in gigabytes. Returns the updated volume and whether its Machine needs a restart.

- Action

**Start Machine**

Starts a stopped or suspended Machine in a Fly.io app.

- Action

**Stop Machine**

Stops a running Fly.io Machine in an app, optionally choosing the stop signal and how long to wait before it is killed.

- Action

**Suspend Machine**

Suspends a Machine in a Fly.io app so its next start can resume from a snapshot instead of a cold boot.

- Action

**Update Machine**

Updates a Fly.io Machine's configuration, such as its image, guest size, environment variables, services or restart policy, and returns the updated Machine.

## 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)
- [ **Fly.io Machines API** Fly.io Machines API is a low-level interface to deploy and manage lightweight VMs globally with fine-grained...](https://apiant.ai/connections/fly-io-machines-api)

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 Fly.io Machines API

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

Questions

## Modusign and Fly.io Machines API, 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 Fly.io Machines API when something happens in Modusign?

Any of Fly.io Machines API's 11 actions, including Create App, Create Machine, Create Volume and Update Machine. Your agent maps the data both ways and tests every scenario before it ships.

###

### Can it also run from Fly.io Machines API to Modusign?

Fly.io Machines API has no triggers in the catalog today, so automations start in Modusign. If you need the other direction, ask: your agent reads Fly.io Machines API's API documentation and adds it.

###

### Do I have to build a connector for Modusign or Fly.io Machines API?

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 Fly.io Machines API 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.
