True-random entropy, relayed from real RTL-SDR hardware.
Contributors run sdr-rand against a USB RTL-SDR dongle, harvest the LSBs of the ADC quantization noise, and POST the bytes here under their nuts.services identity. Anyone can drain. No PRNG. No seed. Just thermal noise from a tuner chip somewhere.
curl https://sdrrand.nuts.services/api/entropy?bytes=32 curl https://sdrrand.nuts.services/api/entropy?bytes=64&format=hex curl https://sdrrand.nuts.services/api/entropy?bytes=256&format=raw > bytes.bin
POST raw bytes with a nuts-auth bearer token. Get one at
auth.nuts.services (either an ahp_ API token or a session JWT).
# From the sdr-rand CLI: sdr-rand push \ --remote https://sdrrand.nuts.services \ --token "$NUTS_TOKEN" \ --frequency 433000000 # Or raw: curl -X POST https://sdrrand.nuts.services/api/entropy \ -H "Authorization: Bearer $NUTS_TOKEN" \ --data-binary @entropy.bin
| Method | Path | Description |
|---|---|---|
| GET | /api/entropy?bytes=N&format=json|hex|raw | Drain up to 4096 bytes (consumed on read). |
| GET | /api/entropy/stream | Server-Sent Events stream, one event per second. |
| POST | /api/entropy | Push raw bytes from a contributor. Auth required. |
| GET | /api/status | Pool stats + uptime. |
| GET | /api/contributors | Leaderboard, by bytes contributed. |
| GET | /healthz | Liveness. |