SLNG.AI API

Proprietary

Endpoint:https://api.slng.ai

Deepgram Aura

POST

https://api.slng.ai

/v1/tts/deepgram/aura

Deepgram Aura text-to-speech with natural voices

Deepgram Aura › Headers

Authorizationstring · required
The Authorization header is used to authenticate with the API using your API key. Value is of the format Bearer YOUR_KEY_HERE.

Deepgram Aura › Request Body

textstring · required
Text to convert to speech

voicestring
Voice ID or name
languagestring
Language code (e.g., en-US)
speednumber
Speech speed (0.5 to 2.0)

Deepgram Aura › Responses

Audio response

string · binary

ElevenLabs Multi-v2

POST

https://api.slng.ai

/v1/tts/elevenlabs/multi-v2

Generate audio from text using ElevenLabs Multi-v2 voice model. Multilingual model supporting 29+ languages with high-quality natural voices.

ElevenLabs Multi-v2 › Headers

Authorizationstring · required
The Authorization header is used to authenticate with the API using your API key. Value is of the format Bearer YOUR_KEY_HERE.

ElevenLabs Multi-v2 › Request Body

textstring · required
The text to convert to speech

voicestring
Voice ID or name to use for synthesis
Default: Rachel
voice_idstring
Alternative parameter name for voice ID
languagestring
Language code (en, es, fr, de, it, pt, pl, hi, ar, zh, ja, ko, etc.)
Default: en
language_codestring
Alternative parameter name for language code
streamboolean
Whether to stream the audio response
Default: false
formatstring
Audio format to return (mp3_44100_128, mp3_44100_192, pcm_16000, pcm_22050, pcm_24000, pcm_44100, ulaw_8000)
Default: mp3_44100_128
stabilitynumber · min: 0 · max: 1
Voice stability (0.0-1.0)
Default: 0.5
similarity_boostnumber · min: 0 · max: 1
Voice similarity boost (0.0-1.0)
Default: 0.75
stylenumber · min: 0 · max: 1
Style control (0.0-1.0)
Default: 0
speaking_ratenumber
Speaking rate multiplier
Default: 1
text_normalizationstring · enum
Text normalization mode
Enum values:
auto
on
off
Default: auto
seedinteger
Random seed for reproducible audio generation

ElevenLabs Multi-v2 › Responses

Audio response

string · binary

ElevenLabs Turbo v2.5

POST

https://api.slng.ai

/v1/tts/elevenlabs/turbo-v2-5

Generate audio from text using ElevenLabs Turbo v2.5 voice model. Ultra-fast TTS model with low latency, ideal for real-time applications.

ElevenLabs Turbo v2.5 › Headers

Authorizationstring · required
The Authorization header is used to authenticate with the API using your API key. Value is of the format Bearer YOUR_KEY_HERE.

ElevenLabs Turbo v2.5 › Request Body

textstring · required
The text to convert to speech

voicestring
Voice ID or name to use for synthesis
Default: Rachel
voice_idstring
Alternative parameter name for voice ID
languagestring
Language code (en, es, fr, de, it, pt)
Default: en
streamboolean
Whether to stream the audio response
Default: false
formatstring
Audio format to return
Default: mp3_44100_128
stabilitynumber · min: 0 · max: 1
Voice stability (0.0-1.0)
Default: 0.5
similarity_boostnumber · min: 0 · max: 1
Voice similarity boost (0.0-1.0)
Default: 0.75
speaking_ratenumber
Speaking rate multiplier
Default: 1
text_normalizationstring · enum
Text normalization mode
Enum values:
auto
on
off
Default: auto

ElevenLabs Turbo v2.5 › Responses

Audio response

string · binary

ElevenLabs TTV v3

POST

https://api.slng.ai

/v1/tts/elevenlabs/ttv-v3

Generate audio from text using ElevenLabs TTV v3 voice model. Optimized for synchronized text-to-video applications.

ElevenLabs TTV v3 › Headers

Authorizationstring · required
The Authorization header is used to authenticate with the API using your API key. Value is of the format Bearer YOUR_KEY_HERE.

ElevenLabs TTV v3 › Request Body

textstring · required
The text to convert to speech

voicestring
Voice ID or name to use for synthesis
Default: Rachel
voice_idstring
Alternative parameter name for voice ID
languagestring
Language code (en, es, fr, de, it, pt)
Default: en
streamboolean
Whether to stream the audio response
Default: false
formatstring
Audio format to return
Default: mp3_44100_128
stabilitynumber · min: 0 · max: 1
Voice stability (0.0-1.0)
Default: 0.5
similarity_boostnumber · min: 0 · max: 1
Voice similarity boost (0.0-1.0)
Default: 0.75
speaking_ratenumber
Speaking rate multiplier
Default: 1
text_normalizationstring · enum
Text normalization mode
Enum values:
auto
on
off
Default: auto
seedinteger
Random seed for reproducible audio generation

ElevenLabs TTV v3 › Responses

Audio response

string · binary

ElevenLabs Flash v2.5

POST

https://api.slng.ai

/v1/tts/elevenlabs/flash-v2-5

Generate audio from text using ElevenLabs Flash v2.5 voice model. Fast TTS model with good balance between speed and quality.

ElevenLabs Flash v2.5 › Headers

Authorizationstring · required
The Authorization header is used to authenticate with the API using your API key. Value is of the format Bearer YOUR_KEY_HERE.

ElevenLabs Flash v2.5 › Request Body

textstring · required
The text to convert to speech

voicestring
Voice ID or name to use for synthesis
Default: Rachel
voice_idstring
Alternative parameter name for voice ID
languagestring
Language code (en, es, fr, de, it, pt, pl)
Default: en
streamboolean
Whether to stream the audio response
Default: false
formatstring
Audio format to return
Default: mp3_44100_128
stabilitynumber · min: 0 · max: 1
Voice stability (0.0-1.0)
Default: 0.5
similarity_boostnumber · min: 0 · max: 1
Voice similarity boost (0.0-1.0)
Default: 0.75
speaking_ratenumber
Speaking rate multiplier
Default: 1
text_normalizationstring · enum
Text normalization mode
Enum values:
auto
on
off
Default: auto

ElevenLabs Flash v2.5 › Responses

Audio response

string · binary

Open Source @ SLNG