What this skill tells your AI

The instructions your AI receives, as published by team-telnyx/ai in skills/telnyx-iot-javascript/SKILL.md and read by ahel’s review.

Installation

npm install telnyx@6.74.2

Setup

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.

Error Handling

All API calls can fail with network errors, rate limits (429), validation errors (422), or authentication errors (401). Always handle errors in production code:

try {
  const result = await client.messages.send({ to: '+13125550001', from: '+13125550002', text: 'Hello' });
} catch (err) {
  if (err instanceof Telnyx.APIConnectionError) {
    console.error('Network error — check connectivity and retry');
  } else if (err instanceof Telnyx.RateLimitError) {
    // 429: rate limited — wait and retry with exponential backoff
    const retryAfter = err.headers?.['retry-after'] || 1;
    await new Promise(r => setTimeout(r, retryAfter * 1000));
  } else if (err instanceof Telnyx.APIError) {
    console.error(`API error ${err.status}: ${err.message}`);
    if (err.status === 422) {
      console.error('Validation error — check required fields and formats');
    }
  }
}

Common error codes: 401 invalid API key, 403 insufficient permissions, 404 resource not found, 422 validation error (check field formats), 429 rate limited (retry with exponential backoff).

Important Notes

Pagination: List methods return an auto-paginating iterator. Use for await (const item of result) { ... } to iterate through all pages automatically.

Purchase eSIMs

Purchases and registers the specified amount of eSIMs to the current user's account. If sim_card_group_id is provided, the eSIMs will be associated with that group. Otherwise, the default group for the current user will be used.

POST /actions/purchase/esims — Required: amount

Optional: product (string), sim_card_group_id (uuid), status (enum: enabled, disabled, standby), tags (array[string]), whitelabel_name (string)

const purchase = await client.actions.purchase.create({ amount: 10 });

console.log(purchase.data);

Returns: actions_in_progress (boolean), authorized_imeis (array | null), created_at (string), current_billing_period_consumed_data (object), data_limit (object), eid (string | null), esim_installation_status (enum: released, disabled), iccid (string), id (uuid), imsi (string), msisdn (string), record_type (string), resources_with_in_progress_actions (array[object]), sim_card_group_id (uuid), status (object), tags (array[string]), type (enum: physical, esim), updated_at (string), version (string), voice_enabled (boolean)

Register SIM cards

Register the SIM cards associated with the provided registration codes to the current user's account. If sim_card_group_id is provided, the SIM cards will be associated with that group. Otherwise, the default group for the current user will be used.

POST /actions/register/sim_cards — Required: registration_codes

Optional: sim_card_group_id (uuid), status (enum: enabled, disabled, standby), tags (array[string])

const register = await client.actions.register.create({
  registration_codes: ['0000000001', '0000000002', '0000000003'],
});

console.log(register.data);

Returns: actions_in_progress (boolean), authorized_imeis (array | null), created_at (string), current_billing_period_consumed_data (object), data_limit (object), eid (string | null), esim_installation_status (enum: released, disabled), iccid (string), id (uuid), imsi (string), msisdn (string), record_type (string), resources_with_in_progress_actions (array[object]), sim_card_group_id (uuid), status (object), tags (array[string]), type (enum: physical, esim), updated_at (string), version (string), voice_enabled (boolean)

List bulk SIM card actions

This API lists a paginated collection of bulk SIM card actions. A bulk SIM card action contains details about a collection of individual SIM card actions.

GET /bulk_sim_card_actions

// Automatically fetches more pages as needed.
for await (const bulkSimCardActionListResponse of client.bulkSimCardActions.list()) {
  console.log(bulkSimCardActionListResponse.id);
}

Returns: action_type (enum: bulk_disable_voice, bulk_enable_voice, bulk_set_public_ips), created_at (string), id (uuid), record_type (string), settings (object), sim_card_actions_summary (array[object]), updated_at (string)

Get bulk SIM card action details

This API fetches information about a bulk SIM card action. A bulk SIM card action contains details about a collection of individual SIM card actions.

GET /bulk_sim_card_actions/{id}

const bulkSimCardAction = await client.bulkSimCardActions.retrieve(
  '6a09cdc3-8948-47f0-aa62-74ac943d6c58',
);

console.log(bulkSimCardAction.data);

Returns: action_type (enum: bulk_disable_voice, bulk_enable_voice, bulk_set_public_ips), created_at (string), id (uuid), record_type (string), settings (object), sim_card_actions_summary (array[object]), updated_at (string)

List OTA updates

GET /ota_updates

// Automatically fetches more pages as needed.
for await (const otaUpdateListResponse of client.otaUpdates.list()) {
  console.log(otaUpdateListResponse.id);
}

Returns: created_at (string), id (uuid), record_type (string), sim_card_id (uuid), status (enum: in-progress, completed, failed), type (enum: sim_card_network_preferences), updated_at (string)

Get OTA update

This API returns the details of an Over the Air (OTA) update.

GET /ota_updates/{id}

const otaUpdate = await client.otaUpdates.retrieve('6a09cdc3-8948-47f0-aa62-74ac943d6c58');

console.log(otaUpdate.data);

Returns: created_at (string), id (uuid), record_type (string), settings (object), sim_card_id (uuid), status (enum: in-progress, completed, failed), type (enum: sim_card_network_preferences), updated_at (string)

List SIM card actions

This API lists a paginated collection of SIM card actions. It enables exploring a collection of existing asynchronous operations using specific filters.

GET /sim_card_actions

// Automatically fetches more pages as needed.
for await (const simCardAction of client.simCards.actions.list()) {
  console.log(simCardAction.id);
}

Returns: action_type (enum: enable, enable_standby_sim_card, disable, set_standby), created_at (string), id (uuid), record_type (string), settings (object | null), sim_card_id (uuid), status (object), updated_at (string)

Get SIM card action details

This API fetches detailed information about a SIM card action to follow-up on an existing asynchronous operation.

GET /sim_card_actions/{id}

const action = await client.simCards.actions.retrieve('6a09cdc3-8948-47f0-aa62-74ac943d6c58');

console.log(action.data);

Returns: action_type (enum: enable, enable_standby_sim_card, disable, set_standby), created_at (string), id (uuid), record_type (string), settings (object | null), sim_card_id (uuid), status (object), updated_at (string)

List SIM card data usage notifications

Lists a paginated collection of SIM card data usage notifications. It enables exploring the collection using specific filters.

GET /sim_card_data_usage_notifications

// Automatically fetches more pages as needed.
for await (const simCardDataUsageNotification of client.simCardDataUsageNotifications.list()) {
  console.log(simCardDataUsageNotification.id);
}