ERCOT · Ancillary

Real-time capacity clearing prices (SCED)

Name: Real-time capacity clearing prices (SCED)
Creator: Dryos

Real-time capacity clearing prices per product from every SCED run — the RTC-era companion to the energy LMP. Collected from ERCOT MIS (NP6-332).

ercot-sced-mcpcevery 5 min · 5m rows5 entities

REGUP

$1.80

2026-09-18 04:55 UTC

RRS

$0.48

2026-09-18 04:55 UTC

ECRS

$0.95

2026-09-18 04:55 UTC

Read from the Dryos API and cached for an hour; the stream itself updates every 5 min.

What is in it

Every value, its unit, and what the source means by it.

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
marketrequired	string	Market the capacity price cleared in: DAM, RTM (SCED) or RTM15 (real-time 15-minute settlement).e.g. DAM
as_typerequired	string	Ancillary service product, as ERCOT names it (REGUP, REGDN, RRS, ECRS, NSPIN, ...). The product list has grown over time and is passed through verbatim rather than mapped.e.g. ECRS
mcpcrequired	number	Market clearing price for capacity, $/MW per hour. For the SCED report this is the capped value — the one settlement uses.e.g. 4.00
mcpc_uncapped	number	The uncapped MCPC, $/MW per hour.e.g. 4.00
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

Public, read-only, no key and no sign-up. Relative times stay relative, so a URL keeps working.

The newest rows

shell

curl "https://api.dryos.ai/v1/datasets/ercot-sced-mcpc/query?node=REGUP&limit=12"

The catalogue entry — every column, its type and the source

shell

curl "https://api.dryos.ai/v1/datasets/ercot-sced-mcpc"

Hourly averages for the last day

shell

curl "https://api.dryos.ai/v1/datasets/ercot-sced-mcpc/query?node=REGUP&start=-24h&interval=1h&agg=avg"

Full parameters — bucketing, aggregation, filters and search — are on the API reference.

The same stream through the Model Context Protocol, so Claude, ChatGPT, Cursor or any MCP client can query it directly.

shell

claude mcp add --transport http dryos https://api.dryos.ai/mcp

Then ask:

What has Clearing price been at REGUP over the last 24 hours, and when did it peak?

Setup for every client is on the MCP server page.

Pulled straight from ERCOT MIS · NP6-332-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; 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.