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Data.gov API - US Open Government Datasets

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Access the Data.gov catalog of 300,000+ US government datasets. Search datasets by topic, agency, format, and keywords. Discover open data from federal, state, and local governments

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from $0.01 / 1,000 results

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The Howlers

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Data.gov API - US Open Government Data Catalog

Access the Data.gov catalog of 300,000+ US government datasets. Search datasets by topic, agency, format, and keywords. Discover open data from federal, state, and local governments.

Note: Demo Mode is off by default, so runs fetch real data. Set demoMode to true to get free sample data instead.

Quick Start

Test with Demo Mode (free, no API key needed)

{
  "demoMode": true
}

Run with real data

{
  "demoMode": false,
  "task": "search_datasets",
  "searchQuery": "air quality",
  "limit": 20
}

Input Parameters

Parameter	Type	Default	Required	Description
`task`	string	`"search_datasets"`	Yes*	The operation to perform
`searchQuery`	string	-	No	Keywords to search in dataset titles and descriptions
`datasetId`	string	-	No	Unique dataset identifier
`agency`	string	-	No	Federal agency name or abbreviation
`topic`	string	-	No	Dataset topic/category
`format`	string	-	No	Dataset file format
`license`	string	-	No	Data license type
`limit`	integer	`100`	No	Maximum number of results to return
`webhookUrl`	string	-	No	URL to receive results via webhook
`demoMode`	boolean	`false`	No	Run with sample data (no API required)

Data sources and limits (updated 2026-10-15)

data.gov replaced its old CKAN API, so this actor now uses the new catalog API at catalog.data.gov (no key needed).

datasetId is the dataset slug from its catalog.data.gov URL.
search_by_agency accepts an organization slug (for example noaa, census) or name.
search_by_topic matches dataset keywords; get_topics lists the most common keywords (data.gov no longer has CKAN groups).
get_recent sorts by the date data.gov last harvested each record.
format filters the returned page by distribution format.
Results report returnedCount; the new catalog does not report a total match count.

Pricing

Event	When it is charged	Price
Actor start	Once when the run starts, one event per GB of memory (minimum one). At the default 256 MB of memory that is $0.10 per run	$0.10 per GB
Search Datasets	Full-text search across 300,000+ government datasets. Filter by format, agency, and topic	$0.01
Get Dataset Details	Retrieve complete dataset metadata by ID. Includes description, resources, download links, and update schedule	$0.01
Search by Agency	Find datasets published by a specific federal agency. Explore agency data catalogs	$0.01
Search by Topic	Filter datasets by category (health, climate, education, etc.). Discover thematic data collections	$0.01
Get Popular Datasets	Most downloaded and viewed datasets. Discover high-value, commonly-used government data	$0.01
Get Recent Datasets	Recently added or updated datasets. Stay current with new government data releases	$0.01
Get Agencies List	List of all federal agencies publishing open data with dataset counts. Explore the data landscape	$0.01
Get Topics List	Available data categories and topics with dataset counts. Navigate the catalog by subject area	$0.01
Result	Each item written to the default dataset	$0.00001

Each successful live call charges one event named after the task you ran (prices are on the Pricing tab), plus the standard Actor start fee. Not charged: Demo Mode runs, calls that fail or return an error row, and calls that return no rows.

Troubleshooting

"API error 429" or "Rate limit"

Too many requests. Wait a minute and try again, or reduce the number of items per run.

No results or empty dataset

Check the run log for error messages. Common causes:

Invalid input format (check the examples above)
The target data doesn't exist or is too small to track

How do I test without an API key?

Enable Demo Mode in the input. This returns realistic sample data so you can verify the output format works for your workflow.

Built by John Rippy | Actor Arsenal

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