String MCP Server for Mastra AIGive Mastra AI instant access to 10 tools to Check String Status, Create Contact, Get Contact, and more
Mastra AI is a TypeScript-native agent framework built for modern web stacks. Connect String through Vinkius and Mastra agents discover all tools automatically. type-safe, streaming-ready, and deployable anywhere Node.js runs.
Ask AI about this App Connector for Mastra AI
The String app connector for Mastra AI is a standout in the Communication Messaging category — giving your AI agent 10 tools to work with, ready to go from day one.
Vinkius delivers Streamable HTTP and SSE to any MCP client
import { Agent } from "@mastra/core/agent";
import { createMCPClient } from "@mastra/mcp";
import { openai } from "@ai-sdk/openai";
async function main() {
// Your Vinkius token. get it at cloud.vinkius.com
const mcpClient = await createMCPClient({
servers: {
"string": {
url: "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
},
},
});
const tools = await mcpClient.getTools();
const agent = new Agent({
name: "String Agent",
instructions:
"You help users interact with String " +
"using 10 tools.",
model: openai("gpt-4o"),
tools,
});
const result = await agent.generate(
"What can I do with String?"
);
console.log(result.text);
}
main();
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
About String MCP Server
Connect your String account to any AI agent and manage business messaging.
Mastra's agent abstraction provides a clean separation between LLM logic and String tool infrastructure. Connect 10 tools through Vinkius and use Mastra's built-in workflow engine to chain tool calls with conditional logic, retries, and parallel execution. deployable to any Node.js host in one command.
What you can do
- Contact Management — List, view, and create contacts
- Messaging — Send SMS and MMS messages to any phone number
- Conversation Tracking — View message history and active threads
- Campaign Management — List SMS marketing campaigns
- Tag Organization — View contact tags for segmentation
- Health Check — Verify API connectivity
The String MCP Server exposes 10 tools through the Vinkius. Connect it to Mastra AI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
All 10 String tools available for Mastra AI
When Mastra AI connects to String through Vinkius, your AI agent gets direct access to every tool listed below — spanning sms-marketing, mms-messaging, customer-engagement, and more. Every call is secured with network, filesystem, subprocess, and code evaluation entitlements inside a sandboxed runtime. Beyond a simple connection, you get a full AI Gateway with real-time visibility into agent activity, enterprise governance, and optimized token usage.
Verify API connectivity
Create a contact
Get contact details
Get message details
List campaigns
List all contacts
List conversations
List messages
List all tags
Send a text message
Connect String to Mastra AI via MCP
Follow these steps to wire String into Mastra AI. The entire setup takes under two minutes — your credentials stay safe behind the Vinkius.
Install dependencies
npm install @mastra/core @mastra/mcp @ai-sdk/openaiReplace the token
[YOUR_TOKEN_HERE] with your Vinkius tokenRun the agent
agent.ts and run with npx tsx agent.tsExplore tools
Why Use Mastra AI with the String MCP Server
Mastra AI provides unique advantages when paired with String through the Model Context Protocol.
Mastra's agent abstraction provides a clean separation between LLM logic and tool infrastructure. add String without touching business code
Built-in workflow engine chains MCP tool calls with conditional logic, retries, and parallel execution for complex automation
TypeScript-native: full type inference for every String tool response with IDE autocomplete and compile-time checks
One-command deployment to any Node.js host. Vercel, Railway, Fly.io, or your own infrastructure
String + Mastra AI Use Cases
Practical scenarios where Mastra AI combined with the String MCP Server delivers measurable value.
Automated workflows: build multi-step agents that query String, process results, and trigger downstream actions in a typed pipeline
SaaS integrations: embed String as a first-class tool in your product's AI features with Mastra's clean agent API
Background jobs: schedule Mastra agents to query String on a cron and store results in your database automatically
Multi-agent systems: create specialist agents that collaborate using String tools alongside other MCP servers
Example Prompts for String in Mastra AI
Ready-to-use prompts you can give your Mastra AI agent to start working with String immediately.
"Send a text to +14155551234 saying 'Your order is ready for pickup'."
"List all my contacts."
"Show all active conversations."
Troubleshooting String MCP Server with Mastra AI
Common issues when connecting String to Mastra AI through the Vinkius, and how to resolve them.
createMCPClient not exported
npm install @mastra/mcpString + Mastra AI FAQ
Common questions about integrating String MCP Server with Mastra AI.
How does Mastra AI connect to MCP servers?
MCPClient with the server URL and pass it to your agent. Mastra discovers all tools and makes them available with full TypeScript types.