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 Pydantic AI 12 tools — connect in under 2 minutes

Name: FreeClimb
Availability: InStock
Author: Vinkius

ai.pydantic.dev/mcp

Built by Vinkius GDPR 12 Tools SDK

Pydantic AI brings type-safe agent development to Python with first-class MCP support. Connect FreeClimb through Vinkius and every tool is automatically validated against Pydantic schemas. catch errors at build time, not in production.

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.

python

import asyncio
from pydantic_ai import Agent
from pydantic_ai.mcp import MCPServerHTTP

async def main():
    # Your Vinkius token. get it at cloud.vinkius.com
    server = MCPServerHTTP(url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp")

    agent = Agent(
        model="openai:gpt-4o",
        mcp_servers=[server],
        system_prompt=(
            "You are an assistant with access to FreeClimb "
            "(12 tools)."
        ),
    )

    result = await agent.run(
        "What tools are available in FreeClimb?"
    )
    print(result.data)

asyncio.run(main())

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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.

Pydantic AI validates every FreeClimb tool response against typed schemas, catching data inconsistencies at build time. Connect 12 tools through Vinkius and switch between OpenAI, Anthropic, or Gemini without changing your integration code. full type safety, structured output guarantees, and dependency injection for testable agents.

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 Pydantic AI 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 Pydantic AI via MCP

Follow these steps to integrate the FreeClimb MCP Server with Pydantic AI.

Install Pydantic AI

Run pip install pydantic-ai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token

Run the agent

Save to agent.py and run: python agent.py

Explore tools

The agent discovers 12 tools from FreeClimb with type-safe schemas

Why Use Pydantic AI with the FreeClimb MCP Server

Pydantic AI provides unique advantages when paired with FreeClimb through the Model Context Protocol.

Full type safety: every MCP tool response is validated against Pydantic models, catching data inconsistencies before they reach your application

Model-agnostic architecture. switch between OpenAI, Anthropic, or Gemini without changing your FreeClimb integration code

Structured output guarantee: Pydantic AI ensures tool results conform to defined schemas, eliminating runtime type errors

Dependency injection system cleanly separates your FreeClimb connection logic from agent behavior for testable, maintainable code

FreeClimb + Pydantic AI Use Cases

Practical scenarios where Pydantic AI combined with the FreeClimb MCP Server delivers measurable value.

Type-safe data pipelines: query FreeClimb with guaranteed response schemas, feeding validated data into downstream processing

API orchestration: chain multiple FreeClimb tool calls with Pydantic validation at each step to ensure data integrity end-to-end

Production monitoring: build validated alert agents that query FreeClimb and output structured, schema-compliant notifications

Testing and QA: use Pydantic AI's dependency injection to mock FreeClimb responses and write comprehensive agent tests

FreeClimb MCP Tools for Pydantic AI (12)

These 12 tools become available when you connect FreeClimb to Pydantic AI 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 Pydantic AI

Ready-to-use prompts you can give your Pydantic AI 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 Pydantic AI

Common issues when connecting FreeClimb to Pydantic AI through the Vinkius, and how to resolve them.

MCPServerHTTP not found

Update: pip install --upgrade pydantic-ai

FreeClimb + Pydantic AI FAQ

Common questions about integrating FreeClimb MCP Server with Pydantic AI.

How does Pydantic AI discover MCP tools?

Create an MCPServerHTTP instance with the server URL. Pydantic AI connects, discovers all tools, and generates typed Python interfaces automatically.

Does Pydantic AI validate MCP tool responses?

Yes. When you define result types as Pydantic models, every tool response is validated against the schema. Invalid data raises a clear error instead of silently corrupting your pipeline.

Can I switch LLM providers without changing MCP code?

Absolutely. Pydantic AI abstracts the model layer. your FreeClimb MCP integration works identically with OpenAI, Anthropic, Google, or any supported provider.