How do I connect my String account?

You connect through Vinkius, which hosts the MCP and manages your credentials for you. Once connected, you can use it in any compatible client.

Can I send MMS messages through this MCP?

Yes, the send_message capability supports both SMS and MMS messaging.

Which AI clients can use the String MCP?

It works with any MCP-compatible client, including Claude, Cursor, and Windsurf.

Can I manage my marketing campaigns with my agent?

Yes, you can use the list_campaigns capability to view your active SMS marketing campaigns.

Is there a way to check if the connection is working?

Yes, the check_string_status capability allows your agent to verify API connectivity.

Can my AI send text messages?

Yes. Use send_message with the recipient phone number and message text. The agent delivers it via String.

Can I view conversation history?

Yes. list_conversations shows all active threads, and list_messages returns full message history.

Can I create contacts through the AI?

Yes. create_contact adds a new contact with name and phone number to your String directory.

An astronaut overseeing a futuristic data hub

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Connect String to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Manage your SMS campaigns and customer contacts through your AI agent.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 10 capabilities

We ship only the actions that matter.

Capability set01 / 03

01-04

4 capabilities in this set.

Part of 10 available through String.

01
List conversations
This capability pulls a list of all active conversations in your account.
02
List messages
Use this to retrieve a history of messages sent or received.
03
List tags
This capability returns all contact tags used for segmentation.
04
Create contact
This capability adds a new person to your String contact list.

Capability set02 / 03

05-07

3 capabilities in this set.

Part of 10 available through String.

05
Check string status
Use this to confirm your API connection is active and working.
06
Get contact
This capability fetches specific details for a single contact.
07
Get message
Use this to pull the full details of a specific message.

Capability set03 / 03

08-10

3 capabilities in this set.

Part of 10 available through String.

08
List campaigns
This capability shows you all your existing SMS marketing campaigns.
09
List contacts
This capability provides a full list of everyone in your contact database.
10
Send message
This capability sends an SMS or MMS message to a phone number.

Real work

What teams actually run

Order Updates

Tell your agent to send a pickup notification to a specific customer after a purchase.

Campaign Auditing

Ask your agent to list recent marketing campaigns to check their status.

Customer Support

Have your agent pull up the last few messages from a specific contact to get context.

Audience Segmentation

Use the agent to view contact tags to understand how your users are grouped.

Automate a task

Put String to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

String works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put String to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

940ms average. Fast in production.

String is checked daily against the live service.

Daily averagePeak 1058ms

Oct 3Today

Fastest day: 715ms
Slowest day: 1058ms
14-day trend: Stable-1%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 10 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of String, so you can see the experience inside your AI.

It does not authenticate your account with String. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

String Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_brDg9YXfQzWKRJ2TC3zsIAUXNuDW1xcYrVdnNr1I/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — String capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "string-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_brDg9YXfQzWKRJ2TC3zsIAUXNuDW1xcYrVdnNr1I/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up String in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work String owners hand off.

This MCP is built for teams that rely on mobile messaging to drive customer retention and engagement.

01
Marketing Managers
They use the agent to launch SMS campaigns and monitor engagement.
02
Customer Support Leads
They use the agent to check message histories and respond to user inquiries.
03
Product Managers
They use the agent to manage contact tags and user segmentation.

FAQ

Questions String owners ask.

01
How do I connect my String account?
You connect through Vinkius, which hosts the MCP and manages your credentials for you. Once connected, you can use it in any compatible client.
02
Can I send MMS messages through this MCP?
Yes, the send_message capability supports both SMS and MMS messaging.
03
Which AI clients can use the String MCP?
It works with any MCP-compatible client, including Claude, Cursor, and Windsurf.
04
Can I manage my marketing campaigns with my agent?
Yes, you can use the list_campaigns capability to view your active SMS marketing campaigns.
05
Is there a way to check if the connection is working?
Yes, the check_string_status capability allows your agent to verify API connectivity.
06
Can my AI send text messages?
Yes. Use send_message with the recipient phone number and message text. The agent delivers it via String.
07
Can I view conversation history?
Yes. list_conversations shows all active threads, and list_messages returns full message history.
08
Can I create contacts through the AI?
Yes. create_contact adds a new contact with name and phone number to your String directory.

Explore

More in Communication Messaging

Connect String to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

List conversations

List messages

List tags

Create contact

05-07

Check string status

Get contact

Get message

08-10

List campaigns

List contacts

Send message

What teams actually run

Order Updates

Campaign Auditing

Customer Support

Audience Segmentation

Building your own app? The connector is yours to use.

String Connector

Claude Desktop

Marketing Managers

Customer Support Leads

Product Managers

How do I connect my String account?

Can I send MMS messages through this MCP?

Which AI clients can use the String MCP?

Can I manage my marketing campaigns with my agent?

Is there a way to check if the connection is working?

Can my AI send text messages?

Can I view conversation history?

Can I create contacts through the AI?

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