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QuantaFlow x402 Deepgram API Gateway
x402
QuantaFlow x402 Deepgram API Gateway is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Proxies requests to Deepgram's speech-to-text and audio intelligence API via the x402 micropayment protocol at $0.01 USDC per call
Price / call$0.01
Success—
StatusUnknown
How this service works
Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.
Output
The raw upstream Deepgram API response body is passed through after successful x402 payment verification — typically a JSON object containing transcription text, word-level timestamps, confidence scores, speaker labels, and metadata depending on the Deepgram endpoint and parameters used.
Example use cases
Podcast episode transcription
“Transcribe this podcast episode for me — here's the audio URL, send it to the Deepgram listen endpoint at path /v1/listen and give me the full text transcript.”
Meeting recording to text
“I have a meeting recording hosted at this URL, can you run it through Deepgram via the /v1/listen path and get me a transcript with speaker labels turned on?”
Real-time speech analytics
“Send this audio file to Deepgram's nova model via the /v1/listen path with punctuation and diarization enabled, and return everything Deepgram gives back.”
Technical details
Endpoint
POSThttps://quanta-roan.vercel.app/api/service/deepgram?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need pay-per-use access to Deepgram's speech-to-text API using USDC micropayments via the x402 protocol, without managing a Deepgram subscription or API key. Ideal for AI agents operating in web3/DeFi contexts that already handle x402 payments, or for low-volume transcription tasks where per-call billing at $0.01 USDC is preferable to a monthly subscription.
Side effects
- Insufficient USDC balance or failed x402 payment results in 402 Payment Required response
- Invalid or inaccessible audio URL causes Deepgram upstream error
- Malformed JSON body forwarded to Deepgram returns 400 Bad Request from upstream
- Incorrect path parameter results in Deepgram 404 or unrecognized route
- Network timeout from upstream Deepgram service
- Unsupported audio format rejected by Deepgram
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| body | string | Optional JSON body forwarded to POST requests. |
| path | string | Path below the selected upstream origin. |
| query | object | |
| method | string |
Output
Schema · Response
{
"description": "The upstream response body and content type are passed through after successful payment."
}Tags
x402
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