---
title: "Describe one dataset"
method: GET
path: "/api/v1/datasets/{id}"
tags: ["Data"]
---

# Describe one dataset

`GET /api/v1/datasets/{id}`

## Request

- Base URL: `https://askthegrid.com`
- URL: `https://askthegrid.com/api/v1/datasets/{id}`
- Auth: HTTP bearer

Columns with their roles, the filters the server always applies and why, and what an empty result means for this dataset. The MCP equivalent is the `describe_data` tool.

## Path parameters

- `id` string, required

## Response `200`

Success

- object
  - `dataset` object, required
    - `id` string, required
    - `name` string, required
    - `table` string, required
    - `source` string, required
    - `category` 'Prices' | 'Ancillary Services' | 'Congestion & Constraints' | 'Load' | 'Generation' | 'Interchange' | 'Outages & Grid Events' | 'Infrastructure' | 'Weather' | 'Hydrology', required
    - `description` string, required
    - `frequency` string, required
    - `markets` string[], required
    - `queryable` boolean, required
    - `timeColumn` string, nullable, required
    - `grain` string, required
    - `primaryKey` string[], required
    - `columns` object[], required
      - `name` string, required
      - `type` string, required
      - `role` 'event_time' | 'publication_time' | 'key' | 'measure' | 'dimension', required
    - `requiredFilters` object[], required
      - `column` string, required
      - `value` string, required
      - `reason` string, required
    - `canonicalization` string, required
    - `cautions` string[], required
    - `emptyResultMeaning` 'unknown' | 'authoritative_for_filtered_scope', required

## Other responses

- `400`: The request did not match the contract.
- `401`: Missing or invalid credentials.
- `429`: Rate limit exceeded. Wait `Retry-After` seconds; `X-RateLimit-Limit`, `X-RateLimit-Remaining` and `X-RateLimit-Reset` report the budget. Signed-in sessions and API keys have larger budgets than anonymous callers.

---

[API](https://skmtc.dev/askthegrid/apis/ask-the-grid-api.md) · [All operations](https://skmtc.dev/askthegrid/apis/ask-the-grid-api/llms.txt) · [OpenAPI document](https://skmtc.dev/askthegrid/apis/ask-the-grid-api/revisions/9cd80115e395?raw)