Telnyx MCP connector for AI agents

CALL ANY TOOL

10 tools covering send, create, list.

telnyxmcp_get_api_endpoint_schema

Get the json schema for a named telnyx api endpoint. call th

Get the json schema for a named telnyx api endpoint. call this after finding an endpoint with list_api_endpoints; the returned schema tells you which arguments invoke_api_endpoint expects.

Parameters

Name

Type

Required

Description

endpoint

string

Required

The name of the endpoint to get the schema for, as returned by list_api_endpoints.

telnyxmcp_invoke_api_endpoint

Invoke any telnyx api endpoint by name. this is a generic ex

telnyxmcp_list_api_endpoints

List or search all endpoints in the telnyx api. use this to

Build your Agent

Same auth pattern across every framework.

from langchain_mcp_adapters.client import MultiServerMCPClient
from scalekit import ScalekitClient

client = ScalekitClient(env_url=ENV_URL, client_id=CLIENT_ID, client_secret=SECRET)
token = client.agent.get_token(user_id="user_id", connector="telnyxmcp")

mcp = MultiServerMCPClient({
    "telnyxmcp": {
        "url": "https://mcp.scalekit.com/telnyxmcp",
        "headers": {"Authorization": "Bearer " + token}
    }
})
tools = await mcp.get_tools()

import OpenAI from "openai";
import { ScalekitClient } from "@scalekit-sdk/node";

const client = new ScalekitClient({ envUrl, clientId, clientSecret });
const token = await client.agent.getToken({ userId: "user_id", connector: "telnyxmcp" });

const openai = new OpenAI();
// Connect to MCP at https://mcp.scalekit.com/telnyxmcp
// Pass: Authorization: Bearer + token

import Anthropic from "@anthropic-ai/sdk";
import { ScalekitClient } from "@scalekit-sdk/node";

const client = new ScalekitClient({ envUrl, clientId, clientSecret });
const token = await client.agent.getToken({ userId: "user_id", connector: "telnyxmcp" });

const anthropic = new Anthropic();
// Connect to MCP at https://mcp.scalekit.com/telnyxmcp
// Pass: Authorization: Bearer + token

from google.adk.agents import LlmAgent
from scalekit import ScalekitClient

client = ScalekitClient(env_url=ENV_URL, client_id=CLIENT_ID, client_secret=SECRET)
token = client.agent.get_token(user_id="user_id", connector="telnyxmcp")
# Connect to MCP at https://mcp.scalekit.com/telnyxmcp
# Pass: Authorization: Bearer + token

Try these prompts

Paste any prompt into your agent to get started.

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Get the JSON schema for a named Telnyx API endpoint?

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Invoke any Telnyx API endpoint by name?

Advanced

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List or search all endpoints in the Telnyx API?

SEE HOW AUTH WORKS

User authorises once. Every agent call after uses their token with scope enforcement.

1

Authorize

Your user connects

Telnyx MCP

once. We tie it to their identity and the meetings they approved — no shared bot account, no org-wide access

Who:

user ‘A’

when:

Once per user

access:

Limited to user

2

Store

Their

Telnyx MCP

token lives in a vault scoped to them. User A's meetings are never reachable by an agent acting for user B, even on the same connection

vault:

encrypted

scope:

per-user

tokens:

auto-refreshed

3

Resolve

When your agent calls a

Telnyx MCP

tool, we fetch the right token server-side. It never touches your agent, never appears in the LLM context, never shows up in your logs

speed:

~40ms

check:

before every call

seen by:

nobody

4

Audit

Every

Telnyx MCP

tool call is logged — who triggered it, which meeting was fetched, what came back. 90 days of history, tied to the user who authorized it

history:

90 days

export:

SIEM-ready

logged:

every call

Test other agents

See the same per-user auth pattern across other connectors.

ENGINEERING

Slack workflow agent (LangGraph)

LangGraph agent that drives multi-step Slack workflows: triggers, approvals, and follow-up actions per user identity.

Slack

View agent

OPS

Email-to-calendar scheduling agent

Parse scheduling intent from Gmail threads and create Google Calendar events with the right attendees and timezone.

Gmail

Google Calendar

View agent

Why Scalekit

Secure your agent's access. Connectors ship in minutes

Other connector libraries treat auth as a demo afterthought.

01.

Shared tokens break per-user analytics

A shared token looks fine in a demo. In production every call looks like a service account. Scalekit resolves the real user credential.

// shared token
 audit → bot_service_account

 // scalekit
 audit → user_abc ✓

02.

Authentication is not authorization

03.

Multi-tenancy is architectural

04.

One connector today. Ten tomorrow.

“Our agents act across Salesforce, Gong, Google Drive, and more, on behalf of every customer. Scalekit behind the scenes meant we can keep adding tools without ever rebuilding how credentials or tool calling work.”

Venu Madhav Kattagoni

Head of Engineering / Von

FAQs

Frequently Asked Questions

Does the agent access Telnyx as the user or as a shared key?
As the user. Each workspace member authorizes once and Scalekit resolves their credential at request time. Audit logs attribute every action to that user, not a shared service account.

Where is the Telnyx OAuth token stored?
In Scalekit's managed AES-256 token vault, namespaced per tenant. Refresh is automatic. Revocation is a single dashboard action. Tokens never appear in prompts, logs, or LLM context.

Can I limit what the agent is allowed to do in Telnyx?
Yes. Pass a tool name filter to listScopedTools so the messaging agent only sees the subset you authorize. Pre-API-call scope checks block out-of-policy actions before the request reaches Telnyx.

What happens when a user revokes Telnyx access?
The connection is invalidated on the next tool call. Subsequent requests for that user fail closed with a clear error. Other users in the tenant remain unaffected. The event is logged for audit.

Can the agent send SMS or place calls from any number?
Only from numbers on the authorizing user's Telnyx account. Messaging and voice API calls bill and log to that user, and out-of-scope endpoints are blocked before the request leaves Scalekit.

Telnyx MCP

Telnyx MCP tools for AI agents