Integrate Retell AI with Claude, Cursor, Chatbots & AI Agents MCP Server

Q: Can the AI initiate voice calls in a web browser instead of over the phone?

Yes. Use the registerwebcall tool to create a browser-based voice session. This returns a connection URL and access token that your frontend application can use to start a real-time WebRTC conversation with a Retell voice agent, without requiring any phone line.

Empower your conversational AI to orchestrate, analyze, and automate phone calls or web-based voice agent interactions via Retell.

GDPR Free for Subscribers

Compatible with every major AI agent and IDE

Claude

ChatGPT

Cursor

Gemini

Windsurf

VS Code

JetBrains

Vercel

+ other MCP clients

create

Create agent on Retell AI

Creates a new AI voice agent

create

Create llm on Retell AI

Configures a Retell-hosted LLM

create

Create phone call on Retell AI

Provide a JSON payload with "from_number" and "to_number". Initiates an outbound phone call

get

Get call details on Retell AI

Retrieves details for a specific call

list

List agents on Retell AI

Lists all configured AI voice agents

list

List calls on Retell AI

Lists all historical and active calls

list

List phone numbers on Retell AI

Lists all phone numbers associated with the account

list

List voices on Retell AI

Lists all available text-to-speech voices

Register web call on Retell AI

Registers a new web-based call

update

Update agent on Retell AI

Updates an existing AI voice agent

Security & Code Integrity Audit

Every tool in the Retell AI MCP Server is continuously audited by the Vinkius Security Engine. We guarantee zero-trust payload isolation, strict data boundaries, and deterministic execution for enterprise-grade AI agents.

A+Score: 100

How Vinkius protects your data

Can the AI initiate voice calls in a web browser instead of over the phone?

Yes. Use the register_web_call tool to create a browser-based voice session. This returns a connection URL and access token that your frontend application can use to start a real-time WebRTC conversation with a Retell voice agent, without requiring any phone line.

How does the AI access my passwords and credentials?

It simply doesn't. On Vinkius, your passwords, API keys, and login details are kept in a secure vault. The AI (like ChatGPT or Claude) merely "asks" Vinkius to perform the task. Vinkius opens the door, does the work, and hands the result back to the AI. Your credentials are never seen, read, or learned by the artificial intelligence.

What if the AI ends up reading customer data or confidential information?

We have a built-in digital "bodyguard" called DLP (Data Loss Prevention). If a tool fetches data and the response contains social security numbers, credit cards, or personal customer info, Vinkius magically blocks and erases that information before it is delivered to the AI. The AI works only with what is strictly necessary, and your sensitive data never leaks.

Does the AI train on my tools or API data?

No. Vinkius enforces a strict Zero-Retention policy. Your data simply passes through our secure servers to complete the requested action and is instantly forgotten. Nothing you do here is ever stored, logged, or used to train any artificial intelligence.

Automated Workflows using Retell AI

Use Retell AI with any AI agent framework to process, analyze, and mutate data securely via the Model Context Protocol.

AI Semantic Routing for voice ai

Use Retell AI to manage voice ai via conversational interfaces. The integration centralizes access control for ai frontier operations performed by ChatGPT.

The Future of conversational agents

The Retell AI toolkit provides secure access to conversational agents functions. It enables conversational agents to manage ai frontier settings deterministically.