How do I get my Account ID and API Key for FreeClimb?

Log in to your FreeClimb dashboard at https://www.freeclimb.com/dashboard to find your credentials prominently displayed on the main page.

What is an 'Application ID' required for making calls?

An Application ID points to a specific voice or SMS configuration in your FreeClimb account. You can list your active apps using the 'list_applications' tool.

Can I search for new phone numbers to buy?

Yes, use the 'list_buyable_numbers' tool to see available inventory in the FreeClimb network.

Is global SMS supported?

Yes, FreeClimb supports sending SMS messages to over 190 countries worldwide.

FreeClimb MCP Server for Claude Desktop 12 tools — connect in under 2 minutes

Name: FreeClimb
Availability: InStock
Author: Vinkius

modelcontextprotocol.io/quickstart/user

Built by Vinkius GDPR 12 Tools IDE

Claude Desktop is Anthropic's native application for interacting with Claude AI models on macOS and Windows. It was the first consumer application to ship with built-in MCP support, making it the reference implementation for the Model Context Protocol standard.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

RecommendedModern Approach — Zero Configuration

Vinkius Desktop App

The modern way to manage MCP Servers — no config files, no terminal commands. Install FreeClimb and 2,500+ MCP Servers from a single visual interface.

Download Free Open SourceNo signup required

Classic Setup·json

{
  "mcpServers": {
    "freeclimb": {
      // Your Vinkius token. get it at cloud.vinkius.com
      "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    }
  }
}

Fully ManagedVinkius Servers

60%Token savings

High SecurityEnterprise-grade

IAMAccess control

EU AI ActCompliant

DLPData protection

V8 IsolateSandboxed

Ed25519Audit chain

<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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 FreeClimb MCP Server

Connect your FreeClimb account to any AI agent to automate your telecommunications and customer engagement through the Model Context Protocol (MCP). FreeClimb provides a robust cloud platform for making calls, sending SMS messages, and managing programmable communication logic. This MCP server enables you to initiate calls, track message history, and oversee your phone numbers directly through natural conversation.

Claude Desktop is the definitive way to connect FreeClimb to your AI workflow. Add Vinkius Edge URL to your config, restart the app, and Claude immediately exposes all 12 tools in the chat interface. ask a question, Claude calls the right tool, and you see the answer. Zero code, zero context switching.

Key Features

Programmable Voice — Initiate outbound calls using application-defined logic and retrieve detailed call metadata.
SMS Messaging — Send and receive text messages globally and monitor message delivery statuses instantly.
Application Oversight — Access and list your communication applications to maintain full context of your bot's logic.
Number Management — List owned phone numbers and search for new buyable numbers across different regions.
Conference Control — Monitor active multi-party conferences and manage participant interactions.
Account Monitoring — Retrieve real-time account status and balance information to ensure uninterrupted service.
Scalable Infrastructure — Leverage FreeClimb's carrier-grade network directly from your chat interface.

The FreeClimb MCP Server exposes 12 tools through the Vinkius. Connect it to Claude Desktop 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 FreeClimb to Claude Desktop via MCP

Follow these steps to integrate the FreeClimb MCP Server with Claude Desktop.

Open Claude Desktop Settings

Go to Settings → Developer → Edit Config to open claude_desktop_config.json

Add the MCP Server

Paste the configuration above into the mcpServers section

Restart Claude Desktop

Close and reopen Claude Desktop to load the new server

Start using FreeClimb

Look for the 🔌 icon in the chat. your 12 tools are now available

Why Use Claude Desktop with the FreeClimb MCP Server

Claude Desktop by Anthropic provides unique advantages when paired with FreeClimb through the Model Context Protocol.

Claude Desktop is the reference MCP client. it was designed alongside the protocol itself, ensuring the most complete and stable MCP implementation available

Zero-code configuration: add a server URL to a JSON file and Claude instantly discovers and exposes all available tools in the chat interface

Claude's extended thinking capability lets it reason through multi-step tool usage, chaining multiple API calls to answer complex questions

Enterprise-grade security with local config storage. your tokens never leave your machine, and connections go directly to Vinkius Edge network

FreeClimb + Claude Desktop Use Cases

Practical scenarios where Claude Desktop combined with the FreeClimb MCP Server delivers measurable value.

Interactive data exploration: ask Claude to query DNS records, look up WHOIS data, and cross-reference results in a single conversation

Ad-hoc security audits: type a domain name and let Claude enumerate subdomains, check DNS history, and flag configuration anomalies. all through natural language

Executive briefings: generate comprehensive domain intelligence reports by asking Claude to compile findings into a formatted summary

Learning and training: new team members can explore API capabilities conversationally without needing to read documentation

FreeClimb MCP Tools for Claude Desktop (12)

These 12 tools become available when you connect FreeClimb to Claude Desktop via MCP:

get_account_status

Check account and balance

get_application_details

Get app metadata

get_call_details

Get call metadata

get_sms_details

Get message metadata

list_applications

List communication apps

list_buyable_numbers

Search for new numbers

list_calls

List recent calls

list_conferences

List active conferences

list_my_numbers

List owned phone numbers

list_sms_messages

List sent/received SMS

make_call

Place a phone call

send_sms

Send an SMS message

Example Prompts for FreeClimb in Claude Desktop

Ready-to-use prompts you can give your Claude Desktop agent to start working with FreeClimb immediately.

"Send an SMS from '+1234567890' to '+10987654321' saying 'Your appointment is confirmed'."

"List all phone numbers currently in my FreeClimb account."

"Place a call from '+1234567890' to '+10987654321' using application 'app_987'."

Troubleshooting FreeClimb MCP Server with Claude Desktop

Common issues when connecting FreeClimb to Claude Desktop through the Vinkius, and how to resolve them.

Server not appearing after restart

Ensure the JSON is valid (no trailing commas). Check the file path: ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\\Claude\\ (Windows).

Authentication error

Verify your Vinkius token is correct. Go to cloud.vinkius.com to regenerate it if needed.

Tools not showing in chat

Click the 🔌 icon at the bottom of the chat input. If it shows 0 tools, the server may still be connecting. wait a few seconds.

FreeClimb + Claude Desktop FAQ

Common questions about integrating FreeClimb MCP Server with Claude Desktop.

How does Claude Desktop discover MCP tools?

When Claude Desktop starts, it reads the claude_desktop_config.json file and connects to each configured MCP server. It calls the tools/list endpoint to fetch the schema for every available tool, then surfaces them as clickable options in the chat interface via the 🔌 icon.

What happens if the MCP server is temporarily unavailable?

Claude Desktop handles disconnections gracefully. if the server is unreachable at startup, the tools simply won't appear. Once the server becomes available again, restarting Claude Desktop will re-establish the connection. There is no timeout penalty or error loop.

Can I connect multiple MCP servers simultaneously?

Yes. You can add as many servers as you need in the mcpServers section of the config file. Each server appears as a separate tool provider, and Claude can use tools from multiple servers in a single conversation turn.

Is there a limit on the number of tools per server?

Claude Desktop can handle hundreds of tools per server. However, for optimal LLM performance, Vinkius servers are designed to expose focused, well-documented tool sets rather than overwhelming the model with too many options.

Does Claude Desktop support Streamable HTTP transport?

Yes. Claude Desktop supports both SSE (Server-Sent Events) and the newer Streamable HTTP transport that Vinkius uses. Simply provide the server URL. Claude auto-negotiates the transport protocol.