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Sample entity lists

You can use sample to get a random list of up to 10,000 results.
Get 100 random works
https://api.openalex.org/works?sample=100&per-page=100​
Get 50 random works that are open access and published in 2021
https://api.openalex.org/works?filter=open_access.is_oa:true,publication_year:2021&sample=50&per-page=50​
You can add a seed value in order to retrieve the same set of random records, in the same order, multiple times.
Get 20 random sources with a seed value
https://api.openalex.org/sources?sample=20&seed=123​
Depending on your query, random results with a seed value may change over time due to new records coming into OpenAlex. 
Limitations
The sample size is limited to 10,000 results.
You must provide a seed value when paging beyond the first page of results. Without a seed value, you might get duplicate records in your results.
 You must use basic paging when sampling. Cursor pagination is not supported.
Select fields
Autocomplete entities
Last modified 6mo ago