Connect Codex to Telzio
Set up in minutes
Choose where it runs
On your computer through your own Codex, or hosted in the cloud. The rest of setup adapts to your choice:

Pick what it can do in Telzio
A preset of real Telzio operations. Each one becomes a tool the agent can call, and it can't touch anything outside the list.

Connect Telzio
One sign-in. The agent acts through your account, scoped to the operations you picked.
Add your personal MCP link
The last step mints a private MCP URL for this agent and walks you through exactly this, with your real link filled in. The page flips to Connected the moment your Codex first calls in. Codex connects when a session starts — run codex, or restart a running one (in the Codex app, Restart).
Run this in your terminal. The Codex app shares its config, so it gets the server too
<your-link> is your personal server URL — setup mints it for you.
Tools Codex gets
Telzio
25 toolsList users on the connected account, with optional search and a page cursor.
Retrieve a user by user ID, username or extension.
List one page of the connected user's recent calls.
Retrieve the details of a call.
List one page of conversations, including each conversation's most recent item.
Retrieve a conversation and its details.
List the first page of items in a conversation. Returns the oldest message ID; cursor paging is not exposed for this operation.
Start a new SMS conversation by sending a text message from a Telzio number.
Send a text message in an existing SMS conversation.
Search contacts and organizations by name, or list them when no search is supplied.
Retrieve a contact and its phonebook endpoints.
Create a phonebook contact, optionally linked to an organization.
Rename a phonebook contact and optionally change its organization.
Permanently delete a phonebook contact.
List one page of comments on a call, voicemail or other Telzio item.
Add a comment to a Telzio item.
List call queues the connected user can access.
Retrieve a call queue, including its agents and waiting calls.
List one page of recordings the connected user can access.
Retrieve recording details without downloading audio.
List one page of the connected user's available voicemails.
Retrieve a voicemail assigned to the connected user.
Mark a voicemail as listened or unlistened.
List one page of tags associated with the connected account.
Create a tag for the connected account.
About Codex
Frequently asked questions
More ways to connect
Open your Codex agent in one click.
NoClick runs Codex for you with Telzio wired in as tools. Connect your account and run.