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Telnyx Audio API

The Audio API from Telnyx — 1 operation(s) for audio.

Telnyx Audio API is one of 168 APIs that Telnyx publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Audio. The published artifact set on APIs.io includes an OpenAPI specification and API documentation.

This API exposes 1 operation across 1 path, and defines 6 schemas. It is described by OpenAPI 3.1.0, at version 2.0.0.

Requests are made against a single base URL, https://api.telnyx.com/v2.

1 operations 1 paths 6 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.1.0
API Version
2.0.0
Base URL
https://api.telnyx.com/v2
Authentication
HTTP Bearer, HTTP Bearer, OAuth 2.0, HTTP Bearer, HTTP Bearer, HTTP Bearer
Resource Areas
1

Authentication & Security 6

Telnyx Audio API declares 6 security schemes for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). It accepts HTTP bearer tokens (branded-calling_bearerAuth). It supports OAuth 2.0 (oauthClientAuth) using the authorizationCode and clientCredentials flows, exposing 1 scope. It accepts HTTP bearer tokens (JWT) (outbound-voice-profiles_bearerAuth). It accepts HTTP bearer tokens (pronunciation-dicts_bearerAuth). It accepts HTTP bearer tokens (JWT) (stored-payment-transactions_bearerAuth). By default, every request must be authenticated.

  • branded-calling_bearerAuth — API key passed as a Bearer token in the Authorization header
  • oauthClientAuth — OAuth 2.0 authentication for Telnyx API and MCP integrations
  • pronunciation-dicts_bearerAuth — Telnyx API v2 key. Obtain from https://portal.telnyx.com

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Audio 1
POST
/ai/audio/transcriptions
Transcribe speech to text
audio_public_audio_transcriptions_post body → 200422

Schemas 6

The contract defines 6 schemas that model the data the API accepts and returns. The most detailed are AudioTranscriptionRequest (7 properties), AudioTranscriptionResponseWord (5 properties), AudioTranscriptionResponse (4 properties), AudioTranscriptionResponseSegments (4 properties). Each schema is shown below with its type and property counts.

ValidationError
object
3 properties 3 required
AudioTranscriptionResponseWord
object
Word-level timing detail. Only present when using deepgram/nova-3 with modelconfig options that enable word timestamps.
5 properties 3 required
AudioTranscriptionRequest
object
7 properties 1 required
HTTPValidationError
object
1 property
AudioTranscriptionResponseSegments
object
4 properties 4 required
AudioTranscriptionResponse
object
Response fields vary by model. distil-whisper/distil-large-v2 returns text, duration, and segments in verbosejson mode. openai/whisper-large-v3-turbo returns t…
4 properties 1 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

telnyx-audio-api-openapi.yml Raw ↑

Other APIs Telnyx publishes across the network.

Telnyx Access Tokens API
Telnyx Addresses API
Telnyx Advanced Number Orders API
Telnyx Assistants API
Telnyx Audit Logs API
Telnyx Authentication Providers API
Telnyx AutoRechargePreferences API
Telnyx Billing API
Telnyx Billing Groups API
Telnyx Brands API
Telnyx Bucket SSL Certificate API
Telnyx Bucket Usage API