Dreamer Corpus

Access the COCA corpus API at https://api.dr.eamer.dev.

COCA contains 1+ billion words of contemporary American English from spoken, fiction, magazine, newspaper, and academic sources.

Authentication

export DREAMER_API_KEY=your_key_here

Endpoints

Word Search / Concordance

GET https://api.dr.eamer.dev/v1/corpus/search?word=serendipity&limit=20

Returns KWIC (keyword-in-context) examples showing the word in actual usage.

Collocations

GET https://api.dr.eamer.dev/v1/corpus/collocations?word=run&pos=verb&limit=20

Returns words that statistically co-occur with the target word (MI score, frequency).

Frequency

GET https://api.dr.eamer.dev/v1/corpus/frequency?word=algorithm&genre=academic

Returns frequency per million words, with optional genre filter: spoken, fiction, magazine, newspaper, academic.

When to Use

• Checking how formal or common a word is in real American English
• Finding natural collocations for writing assistance
• Linguistic research on word usage patterns
• Historical frequency trends across decades

Don't Use When

• You need non-English corpora
• You need corpora other than contemporary American English (COCA is 1990-present)