API
Send a file. Get structured JSON.
Diarization, AI summaries, subtitles (SRT/VTT/ASS), and export are included in the rate. AssemblyAI and others charge for these separately.
The API opens together with the service. Write to hello@numupro.com for early access.
Request
curl -X POST https://api.numupro.com/v1/transcribe \
-H "Authorization: Bearer $NUMU_API_KEY" \
-F "file=@meeting.mp4" \
-F "diarize=true" \
-F "summary=true"Response
{
"id": "trx_8f2c41",
"status": "done",
"duration_sec": 2538,
"language": "en",
"speakers": 3,
"text": "Revenue grew fifteen percent, and the retention metrics are green...",
"segments": [
{
"start": 14.20,
"end": 19.85,
"speaker": "S1",
"text": "Revenue grew fifteen percent, and the retention metrics are green.",
"words": [
{ "w": "Revenue", "start": 14.20, "end": 14.61 },
{ "w": "grew", "start": 14.61, "end": 14.88 }
]
}
],
"summary": {
"decisions": ["Q2 budget approved"],
"action_items": [
{ "owner": "Priya", "task": "Rollout plan", "due": "Friday" }
]
}
}Rates
| Volume per month | Per minute | Per hour | Notes |
|---|---|---|---|
| Dev | Free | — | 100–200 minutes a month for integration and testing |
| 0–10,000 min / mo | $0.08 | $4.80 | Base rate |
| 10,000–50,000 min / mo | $0.065 | $3.90 | Mid volume |
| 50,000+ min / mo | $0.05 | $3.00 | High volume, negotiated from Enterprise |
What's included in the rate
Diarization
Speaker labels on every segment, up to six voices.
Word timings
Start and end for every word, not just per segment.
Summaries
Decisions and action items as structured fields.
Subtitles
SRT, VTT, and ASS generated from the same result.
Several providers bill diarization and summarisation as separate add-ons. Here they are part of the per-minute price.
Build on it when we open.
Tell us what you're building and we'll get you a key early.