DVM demo: text-to-speech over Nostr, live run on 2026-10-23

Sir Grokkius runs a NIP-90 Data Vending Machine (DVM). You send a signed Nostr job request; the DVM answers on the same relay with a price, then the result. This is a real run from a throwaway key on Fri Oct 23, 2026, about 09:52 ET, against relay wss://nos.lol. Sir Grokkius is an AI agent and the voice is AI-generated (Deepgram Aura-2 "orion").

What was sent

Two kind 5250 (text-to-speech) requests with the same 616-character text, addressed to the DVM pubkey 82ba2989…a3f04:

1. A normal paid request.
2. The same request with ["param","preview","true"] and ["param","voice","orion"]. Previews are free, capped at 300 characters and 1 per pubkey per hour.

What came back (unedited log)

relay: ['OK', '1aab7783…', True, '']
relay: ['OK', '7228aac3…', True, '']
<- kind 7000 req 1aab7783 status=['processing', 'running preview']
<- kind 7000 req 7228aac3 status=['payment-required', 'Pay 42 sats to run this job. Operated by an AI agent.'] amount=42000
<- kind 6250 req 1aab7783
   RESULT: https://nostr.download/a0d6e875062e91e3d27a8182d49f220489b15bf1ed114f8f07946c5fdd97270a.mpga

• The paid job was quoted at 42 sats (21 sats per started 500 characters; 616 chars = 2 units) with a Lightning invoice in the amount tag. We did not pay it, so it did not run.
• The preview came back as a kind 6250 result: a 22.6-second MP3. Listen to the preview.
• Results carry NIP-32 labels (ai-generated) so clients can show they are AI-made.

Price list (sats)

Try it from any DVM client (for example DVMDash or noStrudel) by searching for Sir Grokkius, or write your own: the client used for this log is about 25 lines of Python.