# Telnyx MCP server

> Work with Telnyx voice, messaging, numbers, AI assistants and edge compute from your assistant through the Telnyx API.

- Listing: https://mcp.tc/i/telnyx
- Connect: use the server's own URL `https://api.telnyx.com/v2/mcp` (OAuth sign-in at the server); clients connect to it directly. The listing link is a page, not an MCP endpoint.
- Type: remote (Streamable HTTP)
- Auth: OAuth sign-in
- Category: [Communication & Meetings](https://mcp.tc/c/communication)
- Vendor: Telnyx
- Homepage: <https://developers.telnyx.com>

## About

Connects an assistant to the Telnyx platform, which provides programmable voice, SMS and MMS, phone numbers, AI assistants and inference, and edge compute. The OAuth scopes cover account management, AI, billing, authentication and access, edge compute and enterprise integrations, each with read or write access.

Runs as a hosted streamable HTTP endpoint at https://api.telnyx.com/v2/mcp, with no local install. Users sign in with OAuth, and the scopes granted decide what the assistant can read or change. Tool calls can also use a Telnyx API key sent as a Bearer token in the Authorization header.

## What it can do

- Manage Telnyx account settings and read billing information
- Work with Telnyx AI assistants and inference resources
- Access edge compute resources with read or write scopes
- Handle authentication and access settings for the account
- Reach voice, messaging and number APIs documented by Telnyx

## Example prompts

- "Show my current Telnyx account balance"
- "List the AI assistants on my Telnyx account"
- "What edge compute functions do I have deployed on Telnyx?"
- "Summarize recent billing activity on my Telnyx account"

## Install

### Claude Code

1. Run this in a terminal, in your project folder:

```bash
claude mcp add --transport http telnyx https://api.telnyx.com/v2/mcp
```

2. Start Claude Code, type `/mcp`, pick **telnyx** and choose **Authenticate**. A browser window opens for the Telnyx sign-in.

Add `--scope user` to make it available in every project, not just this one.

### Claude Desktop

1. Open **Settings → Connectors** and click **Add custom connector**.

2. Name it **Telnyx** and paste this URL:

```url
https://api.telnyx.com/v2/mcp
```

3. Click **Add**, then **Connect**, and sign in when Telnyx asks.

Claude Desktop’s JSON config file only starts local servers. Remote servers go through Connectors, and connectors you add on claude.ai show up here too.

### claude.ai

1. Open the connector form on claude.ai. This button fills in the name and URL for you:

[Add to claude.ai](<https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Telnyx&connectorUrl=https%3A%2F%2Fapi.telnyx.com%2Fv2%2Fmcp>) (opens connector settings)

2. Check that the URL reads `https://api.telnyx.com/v2/mcp` and click **Add**.

3. Click **Connect** and sign in when Telnyx asks.

Free plans allow one custom connector. On Team and Enterprise plans an owner adds it under **Organization settings → Connectors**.

### ChatGPT

1. On chatgpt.com, open **Settings → Security and login** and turn on **Developer mode**.

2. Go to `chatgpt.com/plugins` and click **+** to create an app for a remote MCP server.

3. Paste `https://api.telnyx.com/v2/mcp` as the server URL and choose **OAuth**. ChatGPT sends you to Telnyx to sign in.

Developer mode is available on the web for Plus, Pro, Business, Enterprise and Education accounts.

### Cursor

[Add to Cursor](<https://cursor.com/install-mcp?name=telnyx&config=eyJ1cmwiOiJodHRwczovL2FwaS50ZWxueXguY29tL3YyL21jcCJ9>) (opens Cursor)

Or add it by hand to `~/.cursor/mcp.json` (all projects) or `.cursor/mcp.json` (this project):

`mcp.json`:

```json
{
  "mcpServers": {
    "telnyx": {
      "url": "https://api.telnyx.com/v2/mcp"
    }
  }
}
```

Cursor shows **Needs login** next to the server. Click it to sign in.

### VS Code

[Install in VS Code](<https://vscode.dev/redirect/mcp/install?name=telnyx&config=%7B%22type%22%3A%22http%22%2C%22url%22%3A%22https%3A%2F%2Fapi.telnyx.com%2Fv2%2Fmcp%22%7D>) (opens VS Code)

Or from a terminal:

```bash
code --add-mcp '{"name":"telnyx","type":"http","url":"https://api.telnyx.com/v2/mcp"}'
```

Or commit it to the repo in `.vscode/mcp.json`:

`.vscode/mcp.json`:

```json
{
  "servers": {
    "telnyx": {
      "type": "http",
      "url": "https://api.telnyx.com/v2/mcp"
    }
  }
}
```

VS Code asks you to sign in the first time the server starts.

### Devin Desktop

1. Add it to `~/.config/devin/mcp_config.json` (macOS and Linux) or `%APPDATA%\devin\mcp_config.json` (Windows):

`mcp_config.json`:

```json
{
  "mcpServers": {
    "telnyx": {
      "serverUrl": "https://api.telnyx.com/v2/mcp"
    }
  }
}
```

2. Refresh the MCP server list in Cascade and sign in when asked.

Devin Desktop is the new name for Windsurf. It reads `serverUrl` (or `url`) for remote servers.

### Codex

```bash
codex mcp add telnyx --url https://api.telnyx.com/v2/mcp
codex mcp login telnyx
```

Or edit `~/.codex/config.toml` directly:

`config.toml`:

```toml
[mcp_servers.telnyx]
url = "https://api.telnyx.com/v2/mcp"
```

### Gemini CLI

```bash
gemini mcp add --transport http telnyx https://api.telnyx.com/v2/mcp
```

Then, inside Gemini CLI, run `/mcp auth telnyx` to sign in.

This adds it to the current project. Add `-s user` to use it everywhere.

### Any client

Most clients accept this shape. Some name the URL field differently: `serverUrl` in Devin Desktop, `httpUrl` in Gemini CLI’s settings file.

```json
{
  "mcpServers": {
    "telnyx": {
      "type": "http",
      "url": "https://api.telnyx.com/v2/mcp"
    }
  }
}
```

Zed puts servers under `context_servers` in its settings. Cline needs `"type": "streamableHttp"`, or it assumes SSE.

Client only starts local servers? Bridge it with `npx -y mcp-remote https://api.telnyx.com/v2/mcp`.

## Details

- Last checked: 2026-10-03 (reachable, asks for credentials)
- Listed: 2026-10-03
- Updated: 2026-10-03

---
Source: https://mcp.tc/i/telnyx (mcp.tc is an independent directory, not affiliated with this server's publisher). Corrections: https://mcp.tc/report