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Connect Voxec to ChatGPT

Last updated 24 October 2026.

Add Voxec to ChatGPT as a custom MCP server so ChatGPT can place phone calls for you. You sign in to Voxec; there's no key to copy.

Before you start

  • A Voxec account. Voxec is in closed beta: request access on the home page.
  • A ChatGPT plan that allows custom MCP servers. OpenAI offers custom MCP servers with full MCP support, including tools that take actions such as placing a call, on ChatGPT Business, Enterprise and Edu. On other plans the option may be missing, or limited to tools that only read, which isn't enough for Voxec.
  • On Business, Enterprise or Edu, your workspace admin may need to give you the Create plugins with MCPs permission (admin console → Permissions & roles), or add Voxec for the workspace.
  • Use ChatGPT on the web (chatgpt.com) to add it. Custom MCP servers can't be added from the mobile apps.

Add Voxec in ChatGPT

  1. Step 1: Copy the Voxec address and open Plugins

    Copy this address:

    https://mcp.voxec.ai/mcp

    Then open ChatGPT Plugins (opens in a new tab) on chatgpt.com and click the + (plus) button.

    Simplified diagram, not a screenshot: the highlighted control is the one to press.

  2. Step 2: Choose Add custom MCP server

    Click Add custom MCP server.

    Simplified diagram, not a screenshot: the highlighted control is the one to press.

  3. Step 3: Enter Voxec's details and choose OAuth

    Name it Voxec (the description is optional). Under Connection, paste the address as the Server URL. Set Authentication to OAuth. Read OpenAI's warning about custom servers and tick I understand and want to continue.

    Simplified diagram, not a screenshot: the highlighted control is the one to press.

  4. Step 4: Create it as a plugin

    Click Create as a plugin. ChatGPT reads Voxec's tools (such as place_call and wait_for_call) and shows them for you to review.

    Simplified diagram, not a screenshot: the highlighted control is the one to press.

  5. Step 5: Install Voxec and sign in

    Voxec now appears in your plugins (or your workspace's). Open it and click the + button to install it. When ChatGPT asks you to connect, it opens Voxec: sign in if asked. Some setups wait to ask until the first time you use Voxec in a chat.

    Simplified diagram, not a screenshot: the highlighted control is the one to press.

  6. Step 6: Check the request and click Allow

    Voxec's page should say Allow ChatGPT to place calls as you? and that you'll be sent back to chatgpt.com. Check the email address it's signed in as (Not you? switches account), then click Allow. You're sent back to ChatGPT, and Voxec emails you a note of the connection.

    If it names a different app or address, click Cancel.

    Simplified diagram, not a screenshot: the highlighted control is the one to press.

Use it in a chat

  1. Step 7: Pick Voxec with @

    In a new chat, type @ in the message box and choose Voxec, then ask for a call, for example “Call Luigi's on +44 20 7946 0123 and book a table for two this Friday at 7:30pm.” If ChatGPT doesn't pick Voxec up, name it in your message (“Use Voxec to …”).

    Placing a call is an action, so ChatGPT asks you to confirm before it uses that tool. Check the number and goal it shows, then approve. You can let it remember your choice for the rest of the conversation.

    Simplified diagram, not a screenshot: the highlighted control is the one to press.

Troubleshooting

  • “This connection request is not valid” on a Voxec page: ChatGPT isn't able to sign in to this Voxec server yet, or the server URL is wrong. Check the address is exactly https://mcp.voxec.ai/mcp. If it is, email support: ChatGPT sign-in may not be switched on for your account's server.
  • No “Add custom MCP server” option: your plan or workspace doesn't allow custom MCP servers. On Business, Enterprise or Edu, ask your admin for the Create plugins with MCPs permission.
  • Voxec stops working or asks you to sign in again: open Voxec on ChatGPT Plugins (opens in a new tab) and connect again. If you disconnected ChatGPT on Voxec's Connect page, this is expected.
  • Tools look out of date: open Voxec on ChatGPT Plugins and click Refresh, then start a new chat.
  • “Verify your email first”: open the verification email Voxec sent you, then connect again from ChatGPT.
  • “This request has expired”: the sign-in took more than ten minutes. Go back to ChatGPT and connect again.
Long calls: ChatGPT checks on a call in short waits, so it may tell you the call is still going and check again. Every call's outcome and transcript is also in My calls on the Voxec website.

Disconnecting

  • In ChatGPT: open Voxec on ChatGPT Plugins (opens in a new tab) and choose Uninstall plugin. Uninstalling may leave the server connection in place, so also disconnect or delete Voxec's connection there if it's still listed.
  • From Voxec: on the Connect page, under Connected apps, click Disconnect next to ChatGPT. Access stops within a minute, whatever ChatGPT still shows.

Disconnecting doesn't delete your calls.

More help

Still stuck? Email support@voxec.ai with the app you were connecting and roughly when.