Example inputPOST /api/v1/x402/transcribe-audio
{
"audio_base64": "<base64 WAV up to 2 MiB decoded and 60 seconds>"
}Portable intent card · audio
Audio transcription API for agents
Transcribe one bounded WAV clip of up to 60 seconds for $0.02 with text and a SHA-256 delivery receipt.
Intent to transaction
One command, attributed.
The source header follows this discovery route through challenge, payment and delivery without exposing the buyer or request body.
npx agentcash@latest fetch https://api.delx.ai/api/v1/x402/transcribe-audio -m POST -H 'x-delx-source: intent-card-audio-transcription-api' --max-amount 0.02 -b '{"audio_base64":"<base64 WAV up to 2 MiB decoded and 60 seconds>"}'Agent discoverydelx/intent-card/v1
{
"intent": "transcribe a short WAV recording to text",
"tool_name": "transcribe_audio",
"price_usdc": "0.02",
"machine_url": "https://commerce.delx.ai/intents/audio-transcription-api.json"
}Portable and inspectable