aid: listnr
url: https://raw.githubusercontent.com/api-evangelist/listnr/refs/heads/main/apis.yml
name: Listnr
kind: company
description: Listnr AI is a text-to-speech and AI voice platform offering 1,000+
  ultra-realistic voices across 142+ languages and accents, used for voiceovers,
  podcasts, and text-to-video. Beyond the web app, Listnr exposes a documented
  public Text-to-Speech API (base https://bff.listnr.tech/api/tts/v1) that
  converts SSML text or article URLs into MP3/WAV audio synchronously or
  asynchronously, lists available voices, and reports async job status. API keys
  are generated from the Listnr dashboard at voices.listnr.tech and passed via an
  x-listnr-token header.
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- AI
- Text to Speech
- TTS
- Voice
- Speech Synthesis
- Audio
- Voiceover
created: '2026-07-11'
modified: '2026-07-11'
specificationVersion: '0.19'
apis:
- aid: listnr:listnr-text-to-speech-api
  name: Listnr Text-to-Speech API
  tags:
  - Text to Speech
  - Speech Synthesis
  - Audio
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://listnr.ai/text-to-speech-api
  baseURL: https://bff.listnr.tech/api/tts/v1
  properties:
  - url: https://listnr.ai/text-to-speech-api
    type: Documentation
  - url: https://github.com/team-listnr/text-to-speech-api
    type: APIReference
  - url: openapi/listnr-openapi.yml
    type: OpenAPI
  - url: collections/listnr.postman_collection.json
    type: PostmanCollection
  - url: collections/listnr.opencollection.json
    type: OpenCollection
  description: Convert SSML text or an article URL into MP3/WAV speech using a
    chosen voice, voice style, speed, and sample rate. Synchronous endpoints
    return an audio URL directly; asynchronous endpoints return a jobId to poll.
    Endpoints are confirmed from Listnr's public GitHub API documentation.
- aid: listnr:listnr-voices-api
  name: Listnr Voices API
  tags:
  - Voices
  - Languages
  - Catalog
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://github.com/team-listnr/text-to-speech-api
  baseURL: https://bff.listnr.tech/api/tts/v1
  properties:
  - url: https://github.com/team-listnr/text-to-speech-api
    type: APIReference
  - url: openapi/listnr-openapi.yml
    type: OpenAPI
  - url: collections/listnr.postman_collection.json
    type: PostmanCollection
  - url: collections/listnr.opencollection.json
    type: OpenCollection
  description: List the voices available on Listnr, optionally filtered by
    language, gender, and style. Each voice returns its identifier, language,
    gender, and supported voice styles for use with the Text-to-Speech API.
- aid: listnr:listnr-audio-jobs-api
  name: Listnr Audio Jobs API
  tags:
  - Jobs
  - Async
  - Status
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://github.com/team-listnr/text-to-speech-api
  baseURL: https://bff.listnr.tech/api/tts/v1
  properties:
  - url: https://github.com/team-listnr/text-to-speech-api
    type: APIReference
  - url: openapi/listnr-openapi.yml
    type: OpenAPI
  - url: collections/listnr.postman_collection.json
    type: PostmanCollection
  - url: collections/listnr.opencollection.json
    type: OpenCollection
  description: Poll the status of an asynchronous text-to-speech or URL-to-speech
    job by jobId. Returns a status of PENDING, IN_PROGRESS, COMPLETED, or FAILED,
    plus the resulting audio URL and audio key when the job finishes.
common:
- type: DomainSecurity
  url: security/listnr-domain-security.yml
- type: Authentication
  url: authentication/listnr-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/listnr
- type: GitHubOrganization
  url: https://github.com/team-listnr
- type: Website
  url: https://listnr.ai
- type: Documentation
  url: https://github.com/team-listnr/text-to-speech-api
- type: SignUp
  url: https://voices.listnr.tech
- type: Plans
  url: plans/listnr-plans-pricing.yml
- type: RateLimits
  url: rate-limits/listnr-rate-limits.yml
- type: FinOps
  url: finops/listnr-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com