For AI agents: a documentation index is available at the root level at /llms.txt and /llms-full.txt. Append /llms.txt to any URL for a page-level index, or .md for the markdown version of any page.
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DocumentationAPI ReferenceChangelogDiscord
  • Voices
    • POSTCreate voice
    • GETList voices
    • DELDelete voice
  • Text-to-Speech (TTS)
    • WSSStream Input
    • STREAMText-to-Speech (Streamed JSON)
    • POSTText-to-Speech (Streamed File)
    • POSTText-to-Speech (Json)
    • POSTText-to-Speech (File)
    • POSTVoice Conversion (Streamed File)
    • STREAMVoice Conversion (Streamed JSON)
  • Speech-to-speech (EVI)
    • WSSChat
  • Expression Measurement API
      • WSSStream
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Expression Measurement APIStream

Stream

WSS
wss://api.hume.ai/v0/stream/models
Handshake
URLwss://api.hume.ai/v0/stream/models
MethodGET
Status101 Switching Protocols
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Handshake

WSS
wss://api.hume.ai/v0/stream/models

Headers

X-Hume-Api-KeystringRequired

Send

Models endpoint payloadanyRequired

Receive

Model predictionsanyRequired
OR
Error messageanyRequired
OR
Warning messageanyRequired