Telnyx MCP Server for LangChain 10 tools — connect in under 2 minutes
LangChain is the leading Python framework for composable LLM applications. Connect Telnyx through Vinkius and LangChain agents can call every tool natively. combine them with retrievers, memory, and output parsers for sophisticated AI pipelines.
ASK AI ABOUT THIS MCP SERVER
Vinkius supports streamable HTTP and SSE.
import asyncio
from langchain_mcp_adapters.client import MultiServerMCPClient
from langchain_openai import ChatOpenAI
from langgraph.prebuilt import create_react_agent
async def main():
# Your Vinkius token. get it at cloud.vinkius.com
async with MultiServerMCPClient({
"telnyx": {
"transport": "streamable_http",
"url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp",
}
}) as client:
tools = client.get_tools()
agent = create_react_agent(
ChatOpenAI(model="gpt-4o"),
tools,
)
response = await agent.ainvoke({
"messages": [{
"role": "user",
"content": "Using Telnyx, show me what tools are available.",
}]
})
print(response["messages"][-1].content)
asyncio.run(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 Telnyx MCP Server
Connect your Telnyx account to any AI agent and manage your voice and messaging operations directly through natural conversation.
LangChain's ecosystem of 500+ components combines seamlessly with Telnyx through native MCP adapters. Connect 10 tools via Vinkius and use ReAct agents, Plan-and-Execute strategies, or custom agent architectures. with LangSmith tracing giving full visibility into every tool call, latency, and token cost.
What you can do
- Send Messages — Dispatch SMS and MMS texts, including media URLs, across your numbers in real-time
- Check Delivery Status — Look up message details and verify whether texts were successfully delivered or rejected
- Manage Phone Numbers — Browse your active E.164 phone numbers and retrieve configuration details
- Messaging Profiles — Create, update, list, and delete messaging profiles for your applications
- Account Billing — Monitor your exact account balance and available credits before dispatching campaigns
The Telnyx MCP Server exposes 10 tools through the Vinkius. Connect it to LangChain in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.
How to Connect Telnyx to LangChain via MCP
Follow these steps to integrate the Telnyx MCP Server with LangChain.
Install dependencies
Run pip install langchain langchain-mcp-adapters langgraph langchain-openai
Replace the token
Replace [YOUR_TOKEN_HERE] with your Vinkius token
Run the agent
Save the code and run python agent.py
Explore tools
The agent discovers 10 tools from Telnyx via MCP
Why Use LangChain with the Telnyx MCP Server
LangChain provides unique advantages when paired with Telnyx through the Model Context Protocol.
The largest ecosystem of integrations, chains, and agents. combine Telnyx MCP tools with 500+ LangChain components
Agent architecture supports ReAct, Plan-and-Execute, and custom strategies with full MCP tool access at every step
LangSmith tracing gives you complete visibility into tool calls, latencies, and token usage for production debugging
Memory and conversation persistence let agents maintain context across Telnyx queries for multi-turn workflows
Telnyx + LangChain Use Cases
Practical scenarios where LangChain combined with the Telnyx MCP Server delivers measurable value.
RAG with live data: combine Telnyx tool results with vector store retrievals for answers grounded in both real-time and historical data
Autonomous research agents: LangChain agents query Telnyx, synthesize findings, and generate comprehensive research reports
Multi-tool orchestration: chain Telnyx tools with web scrapers, databases, and calculators in a single agent run
Production monitoring: use LangSmith to trace every Telnyx tool call, measure latency, and optimize your agent's performance
Telnyx MCP Tools for LangChain (10)
These 10 tools become available when you connect Telnyx to LangChain via MCP:
create_messaging_profile
Creates a new messaging profile
delete_messaging_profile
This action is irreversible. Permanently deletes a messaging profile
get_account_balance
Retrieves the current Telnyx account credit balance
get_message_details
Retrieves details and delivery status for a specific message
get_messaging_profile_details
Retrieves details for a specific messaging profile
get_number_settings
Retrieves configuration and capability details for a specific phone number
list_messaging_profiles
Lists all messaging profiles in the account
list_phone_numbers
164 numbers and retrieve their unique IDs. Lists all phone numbers owned by the account
send_media_message
Provide from/to numbers and a 100% public JPEG/PNG URL. Sends an outbound MMS message with a media URL
send_text_message
Provide a registered Telnyx from_number and a target to_number in E.164 format. Sends an outbound SMS message via Telnyx
Example Prompts for Telnyx in LangChain
Ready-to-use prompts you can give your LangChain agent to start working with Telnyx immediately.
"What is my current Telnyx account balance?"
"List all the phone numbers I currently own and their IDs."
"Send a text message from +14155552671 to +12125550999 saying that the server is down."
Troubleshooting Telnyx MCP Server with LangChain
Common issues when connecting Telnyx to LangChain through the Vinkius, and how to resolve them.
MultiServerMCPClient not found
pip install langchain-mcp-adaptersTelnyx + LangChain FAQ
Common questions about integrating Telnyx MCP Server with LangChain.
How does LangChain connect to MCP servers?
langchain-mcp-adapters to create an MCP client. LangChain discovers all tools and wraps them as native LangChain tools compatible with any agent type.Which LangChain agent types work with MCP?
Can I trace MCP tool calls in LangSmith?
Connect Telnyx with your favorite client
Step-by-step setup guides for every MCP-compatible client and framework:
Anthropic's native desktop app for Claude with built-in MCP support.
AI-first code editor with integrated LLM-powered coding assistance.
GitHub Copilot in VS Code with Agent mode and MCP support.
Purpose-built IDE for agentic AI coding workflows.
Autonomous AI coding agent that runs inside VS Code.
Anthropic's agentic CLI for terminal-first development.
Python SDK for building production-grade OpenAI agent workflows.
Google's framework for building production AI agents.
Type-safe agent development for Python with first-class MCP support.
TypeScript toolkit for building AI-powered web applications.
TypeScript-native agent framework for modern web stacks.
Python framework for orchestrating collaborative AI agent crews.
Leading Python framework for composable LLM applications.
Data-aware AI agent framework for structured and unstructured sources.
Microsoft's framework for multi-agent collaborative conversations.
Connect Telnyx to LangChain
Get your token, paste the configuration, and start using 10 tools in under 2 minutes. No API key management needed.
