U.S. Grid — ISO Price History — Central U.S. (SPP)
https://grid.ptsolutions.io/v1/history/sppOverview
Historical LMP price data for Central U.S. (SPP) with per-interval average, min, and max over rolling windows up to 7 days. 5-minute resolution, 30-day retention. Pass ?hours=N to control window. L402 Lightning payment, 100 sats per request.
Protocol
L402
Price
100 sats
Payment Asset
BTC
Payment Network
Lightning
Category
real-time-data
Provider
Prime Technology
Source
self-registered
Indexed
2026-04-19 15:50:13
Health
Status
healthy
Latency (p50)
1228ms
Uptime (30d)
93.3%
Reliability Score
81.7/100
Last Checked
2026-08-06 07:38:56
Last Healthy
2026-08-06 07:38:56
Consecutive Failures
0
Macaroon Format
Format
JSON
lnget Compatible
No — JSON token (not a macaroon)
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-08-06 07:38:56 | healthy | 402 | 704ms | |
| 2026-08-06 03:15:28 | healthy | 402 | 1177ms | |
| 2026-08-05 23:20:50 | healthy | 402 | 1651ms | |
| 2026-08-05 15:49:25 | healthy | 402 | 1354ms | |
| 2026-08-05 13:23:45 | healthy | 402 | 677ms | |
| 2026-08-05 07:35:17 | healthy | 402 | 1228ms | |
| 2026-08-05 03:01:33 | healthy | 402 | 1245ms | |
| 2026-08-04 20:38:28 | timeout | — | — | timeout |
| 2026-08-04 16:40:51 | degraded | 402 | 1157ms | |
| 2026-08-04 14:02:39 | degraded | 402 | 1324ms | |
| 2026-08-04 06:57:54 | degraded | 402 | 1388ms | |
| 2026-08-04 02:17:15 | healthy | 402 | 1187ms | |
| 2026-08-03 22:19:45 | healthy | 402 | 1915ms | |
| 2026-08-03 16:01:02 | healthy | 402 | 477ms | |
| 2026-08-03 08:27:37 | healthy | 402 | 430ms |