What can I automate with Linq in Sim?

With Sim you can: Send Message; Create Chat; List Chats; Get Chat; Update Chat; and 29 more tools. Each action runs inside an AI agent block, so you can combine Linq with LLM reasoning, conditional logic, and data from any other connected service.

How do I connect Linq to Sim?

Getting started takes under five minutes: (1) Create a free account at sim.ai. (2) Open your workspace and create an agent. (3) Drag a Linq block onto the workflow builder. (4) Add your API key to authenticate — find it in your account settings. (5) Choose the tool you want to use, wire it to the inputs you need, and click Run. Your agent is live.

Can I use Linq as a tool inside an AI agent in Sim?

Yes — this is one of Sim's core capabilities. Instead of hard-coding when and how Linq is used, you give an AI agent access to Linq tools and describe the goal in plain language. The agent decides which tools to call, in what order, and how to handle the results. This means your automation adapts to context rather than breaking when inputs change.

How do I send message with Linq in Sim?

Add a Linq block to your agent and select "Send Message" as the tool. Fill in the required fields — you can reference outputs from earlier steps, such as text generated by an AI agent or data fetched from another integration. No code is required.

What Linq tools does Sim support?

Sim supports 34 Linq tools: Send Message, Create Chat, List Chats, Get Chat, Update Chat, Mark Chat as Read, Leave Chat, Add Participant, Remove Participant, Start Typing, Stop Typing, Send Voice Memo, Share Contact Card, List Messages, List Thread, Get Message, Edit Message, Delete Message, React to Message, Create Attachment, Get Attachment, Delete Attachment, List Phone Numbers, Check iMessage, Check RCS, Get Contact Card, Create Contact Card, Update Contact Card, Create Webhook Subscription, List Webhook Subscriptions, Get Webhook Subscription, Update Webhook Subscription, Delete Webhook Subscription, List Webhook Events.

Is the Linq integration free to use?

Yes — Sim's free plan includes access to the Linq integration and every other integration in the library. No credit card is needed to get started. Visit sim.ai to create your account.

Back to Integrations

Linq

Send iMessage, SMS, and RCS messages and manage conversations with Linq

View docs

Overview

Reach people on iMessage, SMS, and RCS through Linq. Start chats, send messages with media, links, effects, and replies, send voice memos, react with tapbacks, manage group participants, check iMessage/RCS capability, configure contact cards, and subscribe to webhook events — all through a single Linq API key.

How to automate Linq with Sim

Create a free account
Sign up at sim.ai in seconds. No credit card required. Your workspace is ready immediately.
Add a Linq block
Open your workspace, drag a Linq block onto the workflow builder, and paste in your Linq API key.
Configure, connect, and run
Pick the tool you need, wire in an AI agent for reasoning or data transformation, and run. Your Linq automation is live.

Supported tools

34 Linq tools available in Sim

Send Message

Send a message to an existing chat, with optional media, link, effect, or reply

Create Chat

Start a new iMessage, SMS, or RCS chat and send the first message

List Chats

List chats, optionally filtered by sender or participant handle

Get Chat

Retrieve a chat by ID, including participants and line health

Update Chat

Update chat properties such as group display name and icon

Mark Chat as Read

Mark all messages in a chat as read

Leave Chat

Leave an iMessage group chat (4+ active participants; not supported for direct chats)

Add Participant

Add a participant to a group chat (3+ existing participants)

Remove Participant

Remove a participant from a group chat (minimum 3 participants must remain)

Start Typing

Show a typing indicator in a one-on-one chat (iMessage only, not group chats)

Stop Typing

Stop the typing indicator in a one-on-one chat (iMessage only, not group chats)

Send Voice Memo

Send a voice memo to a chat from a URL or a pre-uploaded attachment

Share Contact Card

Share your configured contact card (Name and Photo Sharing) with a chat

List Messages

List messages in a chat with pagination

List Thread

List all messages in the thread that contains a given message

Get Message

Retrieve a single message by ID, including parts, reactions, and delivery status

Edit Message

Edit the text of a sent message (up to 5 times, within 15 minutes of sending; iMessage only)

Delete Message

Delete a message from the Linq API only (does not unsend it; recipients still see it)

React to Message

Add or remove a tapback reaction on a message

Create Attachment

Upload a file to Linq as a reusable attachment (max 100MB) and get an attachment ID to send in messages

Get Attachment

Retrieve metadata for an attachment, including its download URL and status

Delete Attachment

Permanently delete an attachment owned by your account

List Phone Numbers

List all phone numbers assigned to your partner account, with line health

Check iMessage

Check whether an address (phone number or email) supports iMessage

Check RCS

Check whether an address (phone number or email) supports RCS

Get Contact Card

Retrieve contact cards, optionally filtered by phone number

Create Contact Card

Set up a contact card (Name and Photo Sharing) for a phone number

Update Contact Card

Partially update an existing active contact card for a phone number

Create Webhook Subscription

Subscribe an HTTPS endpoint to Linq webhook events

List Webhook Subscriptions

List all webhook subscriptions on your account

Get Webhook Subscription

Retrieve a webhook subscription by ID

Update Webhook Subscription

Update a webhook subscription (target URL, events, phone filter, or active state)

Delete Webhook Subscription

Delete a webhook subscription from your account

List Webhook Events

List all webhook event types available to subscribe to

Frequently asked questions

Sim's Linq integration lets you build AI agents that automate tasks in Linq without writing code. Send iMessage, SMS, and RCS messages and manage conversations with Linq. You can connect Linq to hundreds of other services in the same agent — from CRMs and spreadsheets to messaging tools and databases.

Start automating Linq today

Build your first AI agent with Linq in minutes. Connect to every tool your team uses. Free to start, no credit card required.

Overview

How to automate Linq with Sim

Create a free account

Add a Linq block

Open your workspace, drag a Linq block onto the workflow builder, and paste in your Linq API key.

Configure, connect, and run

Pick the tool you need, wire in an AI agent for reasoning or data transformation, and run. Your Linq automation is live.

Frequently asked questions