How to Use the Clickatell MCP in Pydantic AI

Q: How do I configure the Clickatell MCP Server with Pydantic AI?

You need to use the unified MCPToolset approach. Instantiate it with your Vinkius HTTP URL and pass it to the toolsets parameter of your Agent. The old MCPServerHTTP class is deprecated.

Type-safe Clickatell SMS operations powered by Pydantic AI.

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Connect Clickatell MCP to Pydantic AI

Create your Vinkius account to connect Clickatell to Pydantic AI and route execution through our secure gateway. The platform manages server hosting, runtime updates, and security layers. Configuration requires no manual server provisioning.

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Setup Clickatell with Pydantic AI

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Perplexity

Strict Validation for Pydantic AI SMS

Silent corruption is the enemy of automated messaging. When your agent calls `dispatch_sms_message`, Pydantic AI validates the JSON payload against your defined models before anything goes over the wire. If the model hallucinates a phone number format, the framework fails loudly with a validation error. The same strict rules apply to checking your wallet. Executing `get_account_balance` returns explicit cloud metrics that get parsed directly into a Pydantic schema. You know exactly what your funding limits are without guessing field names.

Type-Checked Delivery Tracking

Carrier statuses are notoriously messy to parse. Your agent hits `get_delivery_status` and relies on the Clickatell MCP Server to handle the structural extraction. The response maps perfectly to your Python types, ensuring your database only receives clean delivery records. Finding active rules works exactly the same way. The agent runs `list_inbound_rules` to enumerate structured rules traversing MO bounds. Every attached webhook URL and routing condition is validated at runtime.

Safe Campaign Management

Modifying live campaign data requires absolute correctness. Using the MCP Server, your agent runs `list_scheduled_campaigns` to identify precise active arrays spanning your marketing boundaries. If a scheduled drop needs to die, `cancel_queued_message` vaporizes the block safely. You also get strict control over inbound routing logic. The agent can bootstrap an empty parsing block with `upsert_inbound_rule`, knowing the webhook allocation matches your schema. Cleaning up legacy routes via `wipe_inbound_rule` is just as predictable.

Setup guide

Set up Clickatell MCP in Pydantic AI

Prerequisites

Python 3.10+ installed
pydantic-ai-slim[fastmcp] package
Active Vinkius subscription with a valid endpoint token

1

Install Pydantic AI with FastMCP
Run pip install "pydantic-ai-slim[fastmcp]". The FastMCP toolset replaces the deprecated MCPServerHTTP class with full protocol support.
2

Configure the FastMCPToolset
Pass a JSON-style config dict to FastMCPToolset with your Vinkius URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. Supports Streamable HTTP, SSE, and Stdio transports.
3

Create and run your agent
Pass the toolset to Agent(toolsets=[toolset]) and call agent.run(). Swap openai:gpt-4o for any supported model — Anthropic, Google, Mistral, or Groq.

agent.py

from pydantic_ai import Agent
from pydantic_ai.toolsets.fastmcp import FastMCPToolset

toolset = FastMCPToolset({
    "mcpServers": {
        "clickatell-mcp": {
            "url": "https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
        }
    }
})

agent = Agent(
    "openai:gpt-4o",
    toolsets=[toolset],
    system_prompt="You have access to Clickatell tools.",
)

result = await agent.run("List recent Clickatell transactions")
print(result.output)

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Common questions about Clickatell MCP in Pydantic AI

You need to use the unified `MCPToolset` approach. Instantiate it with your Vinkius HTTP URL and pass it to the `toolsets` parameter of your Agent. The old `MCPServerHTTP` class is deprecated.

The framework validates the exact structure of the arguments passed to the MCP tool. If your agent tries to feed a malformed string into `test_carrier_coverage`, it throws a runtime error immediately.

That works perfectly because Pydantic AI is completely model-agnostic. You can connect local LLMs, Anthropic, or OpenAI to the same messaging tools without changing your code.

Your agent will fail loudly. The framework checks the incoming data against your Pydantic models, preventing unexpected carrier properties from poisoning your application state.

Your Clickatell authentication tokens and SMS payloads pass through a completely ephemeral V8 Isolate Sandbox. Vinkius manages the auth via a single endpoint token, ensuring your raw data is never stored or logged on disk.

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