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Technical Reference

Telnyx

Telecom API platform for SMS messaging, voice calls, and messaging webhooks.

CategoryCommunication
Authenticationcustom
Version0.1.0
Published scopes0 published scopes
Last updatedSeptember 24, 2026

Overview

Connect Telnyx with Flows360

Telecom API platform for SMS messaging, voice calls, and messaging webhooks.

Use the Telnyx connector to include its declared actions and events in Flows360 workflows without duplicating the integration logic inside each consuming system. This pinned connector version currently exposes 3 actions and 1 trigger.

Available actions

  • Send SMS
  • Make Call
  • Custom API Call

Available triggers

  • Message Received

The capability list above is generated from the exact reviewed connector package so the public description stays aligned with the version Flows360 operates.

Technical guide

Technical reference

Package identity

  • Connector: Telnyx
  • Package: @activepieces/piece-telnyx@0.1.0
  • Exact artifact digest: sha256:b10cb23b89b1264a51b0824ba929f6ad1cc5d2c281fd90f77fe1be9cffc35040
  • Runtime: Activepieces-compatible deterministic worker
  • Source: the exact reviewed Activepieces source

Authentication

SECRET TEXT. Connection values are tenant-specific and remain in the consuming Studio instance; CDK stores definitions and field metadata, not customer credential values.

Action contracts

  • Send SMS (send_sms), Send an SMS message using the Telnyx Messages API. Classification: read.
  • Make Call (make_call), Initiate an outbound call using the Telnyx Call Control API. Classification: read.
  • Custom API Call (custom_api_call), Make a custom API call to a specific endpoint Classification: read.

Trigger contracts

  • Message Received, webhook.

Verification

Deterministic execution evidence is recorded for the pinned artifact, including 1 exercised action entrypoint and 0 exercised trigger entrypoints.

Capability summary

Authenticationcustom
Supported objects4
Supported actions3
Triggers1

Authentication

Authentication method: custom

Authentication profiles

connection · custom
  • API Key Required · protected credential

Supported objects

ObjectReadWriteNotes
Send SMS Yes No Send an SMS message using the Telnyx Messages API.
Make Call Yes No Initiate an outbound call using the Telnyx Call Control API.
Custom API Call Yes No Make a custom API call to a specific endpoint
Message Received Yes No webhook trigger declared by the pinned package.

Supported actions

Send SMS · Read

Send an SMS message using the Telnyx Messages API.

send_sms · Risk: low · Retry: safe

Inputs

  • from · string · Required, The sending number or sender ID.
  • to · string · Required, The destination phone number in E.164 format.
  • text · string · Required, The message body to send.
  • messaging_profile_id · string · Optional, Optional Telnyx messaging profile ID.
Make Call · Read

Initiate an outbound call using the Telnyx Call Control API.

make_call · Risk: low · Retry: safe

Inputs

  • connection_id · string · Required, The Telnyx Call Control Application ID (formerly connection ID) used to place the call.
  • from · string · Required, The caller ID number in E.164 format.
  • to · string · Required, The destination number or SIP URI.
  • audio_url · string · Optional, Optional WAV or MP3 URL to play when the call is answered.
  • webhook_url · string · Optional, Optional URL that overrides the default Telnyx webhook destination for this call.
  • timeout_secs · number · Optional, How long to let the destination ring before timing out.
Custom API Call · Read

Make a custom API call to a specific endpoint

custom_api_call · Risk: low · Retry: safe

Inputs

  • url · object · Required
  • method · string · Required
  • headers · object · Optional, Authorization headers are injected automatically from your connection.
  • queryParams · object · Optional, Appended to the URL as ?key=value.
  • body_type · string · Optional
  • body · object · Optional
  • response_is_binary · boolean · Optional, Enable for files like PDFs, images, etc.
  • failsafe · boolean · Optional, On a failed request, output the error instead of failing the step.
  • timeout · number · Optional, Seconds to wait for a response. Empty: up to the flow limit (10 min).
  • followRedirects · boolean · Optional, Follow 3xx redirects instead of returning them as the response.

Triggers

Message Received · Webhook

Triggers when Telnyx delivers a message.received webhook event.

Inputs

  • webhook_instructions · string

Setup

Setup

  1. Add the Telnyx connector to the workflow in the target Flows360 Studio instance.
  2. Create or select the tenant-specific connection required by the connector. Connection secrets remain in the Studio connection boundary and are not copied into CDK documentation.
  3. Provide the connection fields declared by the pinned package:
  • No provider credential fields are declared by the pinned package.
  1. Select the required action or trigger and complete its declared input fields. Required and optional inputs are defined by the exact package schema.
  2. Test the workflow in the appropriate environment before enabling production scheduling or event delivery.

Limitations

Limitations and operational notes

  • This content describes @activepieces/piece-telnyx@0.1.0; provider behaviour can change independently and should be revalidated when the provider or connector version changes.
  • Only the 3 actions and 1 trigger declared by this pinned package are represented here.
  • Tenant credentials and connection values are not stored in the public connector record.
  • Provider-side permissions, account entitlements, quotas and rate limits remain subject to the connected provider account and are not inferred when the package does not declare them.
  • Deterministic execution evidence is recorded for the pinned artifact, including 1 exercised action entrypoint and 0 exercised trigger entrypoints.

Troubleshooting

Why canu2019t the connector authenticate?

Check the tenant connection in Studio and confirm every required Telnyx connection field is present. Re-authorise OAuth-based connections if the provider token or consent has expired. Do not place credential values in CDK content or logs.

Why is an action or trigger unavailable?

Confirm that the workflow is using @activepieces/piece-telnyx@0.1.0 and compare the requested capability with the declared action and trigger list for this version. A capability that is not declared by the pinned package should not be presented as supported.

What should I check after a provider-side change?

Revalidate authentication, required fields, action/trigger behaviour and provider documentation before publishing refreshed connector content or moving a new package version into production.

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