items: List All Datasets

API: cms.gov:cms-provider-data-api
Endpoint: /metastore/schemas/dataset/items
Response format: application/json
Auth: none
Method: GET
Last Status: 200
Latency: 295ms

Description

Returns a catalog of all available datasets in the CMS Provider Data repository. Each entry follows the Project Open Data standard (DCAT) and includes rich metadata: dataset title, description, keywords, release dates, update schedules, contact information, and download URLs. This is your discovery endpoint - call it to find which datasets are available before querying their actual data. The response includes dataset identifiers (like '23ew-n7w9') that you'll need for subsequent data queries.

From spec: Returns a list of all available datasets in the CMS Provider Data catalog. Each dataset contains metadata such as title, description, keywords, and distribution information.

Usage Tips

- Results can be large (250KB+); use `limit` parameter to paginate - Each dataset entry contains a `distribution` array with direct CSV download URLs - Check `nextUpdateDate` field to know when data will be refreshed - The `identifier` field is the dataset ID you'll need for /datastore/query calls

Parameters (2)

limit (integer, query, optional, default: 50)

Number of results per page

page (integer, query, optional, default: 1)

Page number for pagination

Examples (1)

List datasets with default pagination curl

List all available datasets in the CMS Provider Data catalog

curl 'https://data.cms.gov/provider-data/api/1/metastore/schemas/dataset/items'
import requests

resp = requests.get("https://data.cms.gov/provider-data/api/1/metastore/schemas/dataset/items")
data = resp.json()
import zingu_apis

api = zingu_apis.api("cms-provider-data")
result = api.fetch("metastore/schemas/dataset/items")

for item in result:
    print(item)
const resp = await fetch("https://data.cms.gov/provider-data/api/1/metastore/schemas/dataset/items");
const data = await resp.json();

Probe History

Latency

Status Codes

TimeStatusLatencySize
2026-04-16 03:06:26.696476 200 295ms
2026-04-15 02:44:32.017040 200 282ms
2026-04-14 01:44:00.587946 200 340ms
2026-04-12 12:31:08.307970 200 674ms
2026-04-10 00:10:17.643151 200 553ms
2026-04-09 03:33:26.080468 200 352ms
2026-04-08 00:36:27.371112 200 397ms
2026-04-07 01:04:42.152536 200 279ms
2026-04-06 05:47:50.045814 200 566ms
2026-04-05 03:34:59.442992 200 354ms
2026-04-04 02:54:41.121874 200 281ms
2026-04-03 12:02:59.067684 200 328ms
2026-03-30 02:51:03.961519 200 338ms
2026-03-29 13:12:12.052883 200 370ms
2026-03-23 09:04:14.678142 200 187ms