How to Use the TeleSign MCP in OpenAI Agents SDK

Q: What is the best practice for checking phone numbers with TeleSign and OpenAI Agents SDK?

Always run scorephone early in your agent’s workflow. This tool gives you a quantifiable risk assessment, which guides whether the agent should proceed to simpler checks or escalate immediately to voice verification using sendvoiceverification.

Q: Does TeleSign support checking connectivity for OpenAI Agents SDK?

Yes, you can verify API connectivity by running checktelesignstatus. This confirms the service is up and ready before your agent tries to send any messages or codes. It's a good pre-flight check.

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Connect TeleSign MCP to OpenAI Agents SDK

Create your Vinkius account to connect TeleSign to OpenAI Agents SDK 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 TeleSign with OpenAI Agents SDK

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Perform Multi-Factor Fraud Checks

Start by getting basic info using `get_phone_id` and then determining the phone type via `get_phone_type`. This sets the stage for a risk assessment that determines the next step. You can deepen the check with `score_phone`, which gives you a direct fraud score. If the score is high, your agent needs to move on to stronger verification methods like sending an SMS using `send_sms` or triggering a voice call through `send_voice_verification`.

Manage Verification Status

The system lets you verify the current status of any process with `check_verification`. This is crucial when your agent needs to wait for an external confirmation. Need to know if a number was deactivated? Run `check_deactivation` first. It gives immediate feedback on whether the phone line is active, keeping your overall flow clean and fast.

Send Targeted Authentication Methods

You've got options for identity proofing. You can send a simple code using `send_verification` or trigger an immediate push notification with `send_push_verification`. These tools work well together in your agent’s sequence. If the first method fails, you don't need to restart; your agent just moves on and tries sending SMS via `send_sms`, keeping the user experience smooth.

Setup guide

Set up TeleSign MCP in OpenAI Agents SDK

Prerequisites

Python 3.10+ installed
openai-agents package (pip install openai-agents)
Active Vinkius subscription with a valid endpoint token

1

Install the SDK

Run pip install openai-agents to install the OpenAI Agents SDK. The MCP integration is built-in — no extra dependencies needed.
2

Connect via SSE transport

Use MCPServerSse with your Vinkius endpoint URL. Replace [YOUR_TOKEN_HERE] with your token from cloud.vinkius.com. The SDK auto-discovers all TeleSign tools at runtime.
3

Create your Agent

Pass the MCP to Agent(mcp_servers=[server]). The agent receives TeleSign tools as native definitions — JSON schemas resolve automatically.
4

Run the agent

Call Runner.run(agent, prompt) to execute. The agent invokes the appropriate TeleSign tools and returns structured results. Copy the full example on the right to get started.

agent.py

import asyncio
from agents import Agent, Runner
from agents.mcp import MCPServerSse

async def main():
    async with MCPServerSse(
        url="https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"
    ) as server:
        agent = Agent(
            name="TeleSign Agent",
            instructions="You have access to TeleSign tools.",
            mcp_servers=[server],
        )
        result = await Runner.run(agent, "List recent transactions")
        print(result.final_output)

asyncio.run(main())

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Common questions about TeleSign MCP in OpenAI Agents SDK

TeleSign provides tools for a multi-step verification process. Your agent can first gather data via `get_phone_id` and then decide the next step—whether that's an SMS or a push notification—based on the initial risk score.

Always run `score_phone` early in your agent’s workflow. This tool gives you a quantifiable risk assessment, which guides whether the agent should proceed to simpler checks or escalate immediately to voice verification using `send_voice_verification`.

Yes, you can verify API connectivity by running `check_telesign_status`. This confirms the service is up and ready before your agent tries to send any messages or codes. It's a good pre-flight check.

Your agent needs to handle failures gracefully. Use tools like `check_deactivation` first; if it fails due to a limit or error, the agent can log it and try again later without crashing the whole flow.

The server handles phone identity data. All tools operate on structured inputs (phone numbers) to provide verification status, ensuring that sensitive number details are only processed as needed by your specific agent task.

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