# Search Library

> Search available libraries

# Search Library

Search across available libraries. Returns an array of matching libraries with metadata useful for selection.

## Arguments

<ParamField path="query" type="string" required>
  The user's question or task (used for relevance ranking)
</ParamField>

<ParamField path="libraryName" type="string" required>
  The library name to search for
</ParamField>

## Response

Returns `Library[]` - an array of library objects.

<ResponseField name="Library" type="object">
  <Expandable title="properties">
    <ResponseField name="id" type="string" required>
      Unique identifier for the library (e.g., `/facebook/react`)
    </ResponseField>
    <ResponseField name="name" type="string" required>
      Display name of the library
    </ResponseField>
    <ResponseField name="description" type="string" required>
      Brief description of the library
    </ResponseField>
    <ResponseField name="totalSnippets" type="number" required>
      Total number of documentation snippets available
    </ResponseField>
    <ResponseField name="trustScore" type="number" required>
      Trust score of the library
    </ResponseField>
    <ResponseField name="benchmarkScore" type="number" required>
      Benchmark score indicating documentation quality
    </ResponseField>
    <ResponseField name="versions" type="string[]">
      Available versions
    </ResponseField>
  </Expandable>
</ResponseField>

## Examples

<RequestExample>
```typescript Basic Search
import { Context7 } from "@upstash/context7-sdk";

const client = new Context7();

const libraries = await client.searchLibrary(
  "I need to build a UI",
  "react"
);

console.log(`Found ${libraries.length} libraries`);
libraries.forEach((library) => {
  console.log(`${library.name}: ${library.description}`);
});
```

```typescript Selecting Best Library
import { Context7 } from "@upstash/context7-sdk";

const client = new Context7();

const libraries = await client.searchLibrary(
  "I want to build a web app",
  "next"
);

const sorted = libraries.sort((a, b) => b.benchmarkScore - a.benchmarkScore);
const best = sorted[0];

console.log(`Best match: ${best.name} (score: ${best.benchmarkScore})`);
console.log(`Available snippets: ${best.totalSnippets}`);
```

```typescript Error Handling
import { Context7, Context7Error } from "@upstash/context7-sdk";

const client = new Context7();

try {
  const libraries = await client.searchLibrary("query", "express");

  if (libraries.length === 0) {
    console.log("No libraries found");
  } else {
    console.log(`Found ${libraries.length} libraries`);
  }
} catch (error) {
  if (error instanceof Context7Error) {
    console.error("API Error:", error.message);
  } else {
    throw error;
  }
}
```
</RequestExample>

## Use Cases

### Finding Libraries by Score

```typescript
const libraries = await client.searchLibrary("state management", "redux");

const trusted = libraries.sort((a, b) => b.trustScore - a.trustScore);
console.log("Most trusted:", trusted[0].name);
```

### Checking Available Versions

```typescript
const libraries = await client.searchLibrary("I want to use lodash", "lodash");

const library = libraries[0];
if (library.versions) {
  console.log(`Available versions: ${library.versions.join(", ")}`);
}
```

### Full Workflow

```typescript
import { Context7 } from "@upstash/context7-sdk";

const client = new Context7();

const libraries = await client.searchLibrary(
  "I want to build a React app",
  "react"
);

const library = libraries[0];
console.log(`Using: ${library.name} (${library.id})`);

const context = await client.getContext(
  "How do I create a component?",
  library.id
);

console.log(context);
```