We search the web, synthesize the results, and cite our sources.
import Casedev from 'casedev';
const client = new Casedev({ apiKey: 'sk_case_YOUR_API_KEY' });
const result = await client.search.v1.answer({
query: 'What is the statute of limitations for medical malpractice in California?'
});
console.log(result.answer);
// "In California, the statute of limitations for medical malpractice
// is generally 3 years from the date of injury or 1 year from when
// the patient discovered the injury [1]. Exceptions exist for
// foreign objects [2] and minors [3]."
for (const citation of result.citations) {
console.log(`[${citation.id}] ${citation.title}: ${citation.url}`);
}
{
"answer": "In California, the statute of limitations for medical malpractice is generally 3 years from the date of injury or 1 year from when the patient discovered or should have discovered the injury, whichever comes first [1]. However, there are exceptions for cases involving foreign objects left in the body [2] and for minors [3].",
"citations": [
{
"id": "1",
"url": "https://law.cornell.edu/california/medical-malpractice",
"title": "California Medical Malpractice Laws",
"text": "California Code of Civil Procedure Section 340.5..."
},
{
"id": "2",
"url": "https://findlaw.com/healthcare/foreign-object-exception",
"title": "Foreign Object Exception",
"text": "When a foreign object is left in the body..."
}
]
}
Parameters
| Parameter | Type | Default | Description |
|---|
query | string | Required | Question to answer |
numResults | number | 10 | Number of sources to search |
includeDomains | array | — | Only search these domains |
excludeDomains | array | — | Exclude these domains |
useCustomLLM | boolean | false | Use Case.dev LLM for answer |
model | string | gpt-4o | LLM model (when useCustomLLM: true) |
stream | boolean | false | Stream the response |
Examples
Basic question
const result = await client.search.v1.answer({
query: 'What are the requirements for a valid non-compete agreement in Texas?'
});
Authoritative sources only
const result = await client.search.v1.answer({
query: 'What is the current federal minimum wage?',
includeDomains: ['dol.gov', 'law.cornell.edu', 'congress.gov'],
numResults: 5
});
With custom LLM
const result = await client.search.v1.answer({
query: 'Explain the differences between Chapter 7 and Chapter 11 bankruptcy',
useCustomLLM: true,
model: 'anthropic/claude-sonnet-4.5'
});
Web data only. For comprehensive legal research, use Lexis, Westlaw, or OpenLaws.
