ERCOT · Pricing
Indicative LMPs (RTD look-ahead)
Where real-time prices are about to go: RTD's forward intervals for every settlement point, republished each run with every vintage kept. Collected from ERCOT MIS (NP6-970).
ercot-indicative-lmpevery 5 min, look-ahead · 5m rows1,118 entitiesWhat is in it
- Updates
- every 5 min, look-ahead · 5m rows
- Entities
- 1,118 entities — HB_NORTH, HB_HOUSTON, LZ_WEST…
- Source
- ERCOT MIS · NP6-970-CD
- Source timezone
- US Central — every timestamp Dryos serves is UTC
- Coverage
- 29 August 2026 to now
- Rows held
- 136,005,480
- Primary key
- iso, node, interval_start_utc, rtd_timestamp_utc
- On the map
- 698 of 1,118 placed — EIA-860M plant coordinates, through ERCOT's unit mapping
What it measures
Every value, its unit, and what the source means by it.
- Indicative LMP$/MWh
Forecast price for the forward interval.
lmp
Columns
Exactly what a request answers with, read from the API rather than written here.
| Column | Type | Description |
|---|---|---|
| interval_start_utcrequired | timestamp | Start of the interval, UTC. Always UTC — ERCOT publishes wall-clock Central with a repeated-hour flag, which is resolved on ingest.e.g. 2026-08-29T14:15:00Z |
| isorequired | string | Publishing ISO.e.g. ERCOT |
| rtd_timestamp_utcrequired | timestamp | The RTD run this forecast came from, UTC — the vintage. Carried from the data itself, not the listing.e.g. 2026-08-29T14:15:03Z |
| interval_idrequired | integer | Position of this interval in the run's look-ahead (1 = next).e.g. 1 |
| noderequired | string | Settlement point identifier, as published by ERCOT.e.g. HB_HOUSTON |
| node_typerequired | string | ERCOT's settlement point type code (RN, HU, LZ, ...).e.g. RN |
| lmprequired | number | Indicative locational marginal price, $/MWh.e.g. 14.87 |
| source_published_at_utcrequired | timestamp | When ERCOT posted the document this row came from, UTC. For reports republished on a rolling window this is the vintage: the same interval appears once per publication, and the newest is the current view.e.g. 2026-08-29T14:17:01Z |
| collected_at_utcrequired | timestamp | When Dryos collected this row, UTC. Stamped by the platform, not the collector.e.g. 2026-08-29T14:18:02Z |
Read it
Public, read-only, no key and no sign-up. Relative times stay relative, so a URL keeps working.
The newest rows
curl "https://api.dryos.ai/v1/datasets/ercot-indicative-lmp/query?node=HB_NORTH&limit=12"The catalogue entry — every column, its type and the source
curl "https://api.dryos.ai/v1/datasets/ercot-indicative-lmp"Hourly averages for the last day
curl "https://api.dryos.ai/v1/datasets/ercot-indicative-lmp/query?node=HB_NORTH&start=-24h&interval=1h&agg=avg"Full parameters — bucketing, aggregation, filters and search — are on the API reference.
Ask an agent
The same stream through the Model Context Protocol, so Claude, ChatGPT, Cursor or any MCP client can query it directly.
claude mcp add --transport http dryos https://api.dryos.ai/mcpThen ask:
What has Indicative LMP been at HB_NORTH over the last 24 hours, and when did it peak?
Setup for every client is on the MCP server page.
How this stream is checked
- Pulled straight from ERCOT MIS · NP6-970-CD — no reseller in between — and compared against that file before it is served.
- Null means the source did not report it — never zero.
- A reading lands every 5 min, look-ahead; the interval timestamp is the start of the interval, in UTC.
- ERCOT settles and publishes on US Central time. Every timestamp Dryos serves is UTC.
Related streams
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