---
title: "List institutions"
method: GET
path: "/institutions"
tags: ["Institutions"]
---

# List institutions

`GET /institutions`

Get a list of institutions with optional filtering, searching, sorting, and pagination.

## Query parameters

- `filter` string
- `sort` string
- `group_by` string
- `search` string
- `per_page` integer
- `page` integer
- `cursor` string
- `sample` integer
- `select` string
- `api_key` string, required

## Response `200`

Successful response

- InstitutionsListResponse
  - `meta` Meta — Metadata about the query results
    - `count` integer — Total number of results matching the query
    - `db_response_time_ms` integer — Database response time in milliseconds
    - `page` integer — Current page number
    - `per_page` integer — Number of results per page
    - `next_cursor` string — Cursor for the next page (when using cursor pagination)
    - `groups_count` integer, nullable — Number of groups when using group_by
    - `cost_usd` number — Cost of this request in USD
  - `results` Institution[]
    - `id` string — The OpenAlex ID for this institution.
    - `ror` string, nullable — The ROR ID for this institution. This is the Canonical External ID for institutions.
    - `display_name` string — The primary name of the institution.
    - `country_code` string, nullable — ISO two-letter country code where this institution is located.
    - `type` 'education' | 'healthcare' | 'company' | 'archive' | 'nonprofit' | 'government' | 'facility' | 'other' — The institution's primary type (ROR vocabulary): `Education`, `Healthcare`, `Company`, `Archive`, `Nonprofit`, `Government`, `Facility`, `Other`.
    - `homepage_url` string, nullable — URL for the institution's primary homepage.
    - `image_url` string, nullable — URL for an image representing this institution (usually from Wikimedia).
    - `image_thumbnail_url` string, nullable — Smaller version of `image_url`.
    - `display_name_acronyms` string[] — Acronyms or initialisms for this institution.
    - `display_name_alternatives` string[] — Other names people may use for this institution.
    - `works_count` integer — The number of works created by authors affiliated with this institution.
    - `cited_by_count` integer — Total citations to works from authors affiliated with this institution.
    - `summary_stats` object — Citation metrics:
      - `2yr_mean_citedness` number
      - `h_index` integer
      - `i10_index` integer
    - `geo` object — Location information:
      - `city` string
      - `geonames_city_id` string
      - `region` string
      - `country_code` string
      - `country` string
      - `latitude` number
      - `longitude` number
    - `lineage` string[] — OpenAlex IDs including this institution and any parent institutions.
    - `ids` object — External identifiers:
      - `openalex` string
      - `ror` string
      - `mag` integer
      - `grid` string
      - `wikipedia` string
      - `wikidata` string
    - `counts_by_year` object[] — `works_count` and `cited_by_count` for each of the last ten years.
      - `year` integer
      - `works_count` integer
      - `cited_by_count` integer
    - `works_api_url` string — A URL that will get you a list of all works affiliated with this institution.
    - `created_date` string, date — When this institution was added to OpenAlex (ISO 8601 date).
    - `updated_date` string, date-time — When this institution was last updated (ISO 8601 datetime).
  - `group_by` GroupByResult[]
    - `key` string — The group key value
    - `key_display_name` string — Human-readable name for the key
    - `count` integer — Number of results in this group

## Other responses

- `400` — Bad request - invalid parameters
- `429` — Rate limit exceeded

---

[API](https://skmtc.net/openalex/apis/openalex-api.md) · [All operations](https://skmtc.net/openalex/apis/openalex-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/openalex/openalex-api/revisions/60b6c8bd0799/schema)