---
title: "Ancillary Services Offers  - DAM"
method: GET
path: "/us/ercot/dam/as-offers"
tags: ["ERCOT"]
---

# Ancillary Services Offers  - DAM

`GET /us/ercot/dam/as-offers`

Offer data for the day-ahead market ancillary services. The data gives the prices and volumes offered in each market. This data is on a 2-day delay.

## Query parameters

- `date_from` string, date, required
- `date_to` string, date, required
- `limit` integer
- `offset` integer
- `timezone` 'UTC' | 'Europe/Berlin' | 'Europe/London' | 'America/New_York' | 'America/Chicago' | 'America/Los_Angeles'

## Response `200`

Success

- object
  - `count` integer, required
  - `next` string, uri, nullable
  - `previous` string, uri, nullable
  - `results` DAMAsOffersSerializers[], required
    - `deliveryEnd` string, date-time, required
    - `deliveryStart` string, date-time, required
    - `deliveryDate` string, date, required
    - `hourEnding` integer, required
    - `MWOffered` number, required
    - `offerPrice` number, required
    - `market` string, required
    - `priceUnit` string, required

## Other responses

- `400` — Bad Request
- `401` — Unauthorized
- `403` — Forbidden
- `404` — Not Found
- `429` — Too Many Requests

---

[API](https://skmtc.net/modoenergy/apis/modo-energy-api.md) · [All operations](https://skmtc.net/modoenergy/apis/modo-energy-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/modoenergy/modo-energy-api/revisions/6c4b83d3fc12/schema)