api/javascript/telnyx-messaging-javascript/SKILL.md
Send and receive SMS/MMS messages, manage messaging-enabled phone numbers, and handle opt-outs. Use when building messaging applications, implementing 2FA, or sending notifications. This skill provides JavaScript SDK examples.
npx skillsauth add team-telnyx/telnyx-toolkit telnyx-messaging-javascriptInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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npm install telnyx
import Telnyx from 'telnyx';
const client = new Telnyx({
apiKey: process.env['TELNYX_API_KEY'], // This is the default and can be omitted
});
All examples below assume client is already initialized as shown above.
Send a message with a Phone Number, Alphanumeric Sender ID, Short Code or Number Pool.
POST /messages — Required: to
const response = await client.messages.send({ to: '+18445550001' });
console.log(response.data);
Note: This API endpoint can only retrieve messages that are no older than 10 days since their creation.
GET /messages/{id}
const message = await client.messages.retrieve('182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e');
console.log(message.data);
Cancel a scheduled message that has not yet been sent.
DELETE /messages/{id}
const response = await client.messages.cancelScheduled('182bd5e5-6e1a-4fe4-a799-aa6d9a6ab26e');
console.log(response.id);
POST /messages/whatsapp — Required: from, to, whatsapp_message
const response = await client.messages.sendWhatsapp({
from: '+13125551234',
to: '+13125551234',
whatsapp_message: {},
});
console.log(response.data);
POST /messages/group_mms — Required: from, to
const response = await client.messages.sendGroupMms({
from: '+13125551234',
to: ['+18655551234', '+14155551234'],
});
console.log(response.data);
POST /messages/long_code — Required: from, to
const response = await client.messages.sendLongCode({ from: '+18445550001', to: '+13125550002' });
console.log(response.data);
POST /messages/number_pool — Required: to, messaging_profile_id
const response = await client.messages.sendNumberPool({
messaging_profile_id: 'abc85f64-5717-4562-b3fc-2c9600000000',
to: '+13125550002',
});
console.log(response.data);
Schedule a message with a Phone Number, Alphanumeric Sender ID, Short Code or Number Pool.
POST /messages/schedule — Required: to
const response = await client.messages.schedule({ to: '+18445550001' });
console.log(response.data);
POST /messages/short_code — Required: from, to
const response = await client.messages.sendShortCode({ from: '+18445550001', to: '+18445550001' });
console.log(response.data);
Retrieve a list of opt-out blocks.
GET /messaging_optouts
// Automatically fetches more pages as needed.
for await (const messagingOptoutListResponse of client.messagingOptouts.list()) {
console.log(messagingOptoutListResponse.messaging_profile_id);
}
GET /phone_numbers/{id}/messaging
const messaging = await client.phoneNumbers.messaging.retrieve('id');
console.log(messaging.data);
PATCH /phone_numbers/{id}/messaging
const messaging = await client.phoneNumbers.messaging.update('id');
console.log(messaging.data);
GET /phone_numbers/messaging
// Automatically fetches more pages as needed.
for await (const phoneNumberWithMessagingSettings of client.phoneNumbers.messaging.list()) {
console.log(phoneNumberWithMessagingSettings.id);
}
GET /mobile_phone_numbers/{id}/messaging
const messaging = await client.mobilePhoneNumbers.messaging.retrieve('id');
console.log(messaging.data);
GET /mobile_phone_numbers/messaging
// Automatically fetches more pages as needed.
for await (const messagingListResponse of client.mobilePhoneNumbers.messaging.list()) {
console.log(messagingListResponse.id);
}
POST /messaging_numbers/bulk_updates — Required: messaging_profile_id, numbers
const messagingNumbersBulkUpdate = await client.messagingNumbersBulkUpdates.create({
messaging_profile_id: '00000000-0000-0000-0000-000000000000',
numbers: ['+18880000000', '+18880000001', '+18880000002'],
});
console.log(messagingNumbersBulkUpdate.data);
GET /messaging_numbers/bulk_updates/{order_id}
const messagingNumbersBulkUpdate = await client.messagingNumbersBulkUpdates.retrieve('order_id');
console.log(messagingNumbersBulkUpdate.data);
The following webhook events are sent to your configured webhook URL.
All webhooks include telnyx-timestamp and telnyx-signature-ed25519 headers for verification (Standard Webhooks compatible).
| Event | Description |
|-------|-------------|
| deliveryUpdate | Delivery Update |
| inboundMessage | Inbound Message |
| replacedLinkClick | Replaced Link Click |
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