---
title: "Ancillary services obligations and responsibilities - DAM"
method: GET
path: "/us/ercot/dam/as-obligations"
tags: ["ERCOT"]
---

# Ancillary services obligations and responsibilities - DAM

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

Ancillary Service Obligation and Ancillary Service Supply Responsibility for each QSE, 180 days after the Operating Day

## Query parameters

- `date_from` string, date, required
- `date_to` string, date, required
- `qse` string
- `limit` integer
- `offset` integer

## Response `200`

Success

- object
  - `count` integer, required
  - `next` string, uri, nullable
  - `previous` string, uri, nullable
  - `results` DAMAsObligationsSerializers[], required
    - `deliveryDate` string, date, required
    - `hourEnding` integer, required
    - `qseName` string, required
    - `regUpObligation` number, required
    - `regDownObligation` number, required
    - `rrsObligation` number, required
    - `nspinObligation` number, required
    - `regUpResponsibility` number, required
    - `regDownResponsibility` number, required
    - `rrsResponsibility` number, required
    - `nspinResponsibility` number, 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)