Java SDK | Firecrawl

Installation

The official Java SDK is maintained in the Firecrawl monorepo at apps/java-sdk. To install the Firecrawl Java SDK, add the dependency from Maven Central:

Gradle (Kotlin DSL)
Gradle (Groovy)
Maven

repositories {
    mavenCentral()
}

dependencies {
    implementation("com.firecrawl:firecrawl-java:1.0.0")
}

repositories {
    mavenCentral()
}

dependencies {
    implementation 'com.firecrawl:firecrawl-java:1.0.0'
}

<dependency>
    <groupId>com.firecrawl</groupId>
    <artifactId>firecrawl-java</artifactId>
    <version>1.0.0</version>
</dependency>

Requires Java 11 or later.

Usage

Get an API key from firecrawl.dev
Set the API key as an environment variable named FIRECRAWL_API_KEY, or pass it with FirecrawlClient.builder().apiKey(...)

Here is a quick example using the current SDK API surface:

import com.firecrawl.client.FirecrawlClient;
import com.firecrawl.models.CrawlJob;
import com.firecrawl.models.CrawlOptions;
import com.firecrawl.models.Document;
import com.firecrawl.models.ScrapeOptions;
import java.util.List;

public class Example {
    public static void main(String[] args) {
        FirecrawlClient client = FirecrawlClient.fromEnv();

        Document doc = client.scrape(
            "https://firecrawl.dev",
            ScrapeOptions.builder()
                .formats(List.of((Object) "markdown"))
                .build()
        );

        CrawlJob crawl = client.crawl(
            "https://firecrawl.dev",
            CrawlOptions.builder().limit(5).build()
        );

        System.out.println(doc.getMarkdown());
        System.out.println("Crawled pages: " + (crawl.getData() != null ? crawl.getData().size() : 0));
    }
}

Scraping a URL

To scrape a single URL, use the scrape method.

import com.firecrawl.models.Document;
import com.firecrawl.models.ScrapeOptions;
import java.util.List;

Document doc = client.scrape(
    "https://firecrawl.dev",
    ScrapeOptions.builder()
        .formats(List.of((Object) "markdown", "html"))
        .onlyMainContent(true)
        .waitFor(5000)
        .build()
);

System.out.println(doc.getMarkdown());
System.out.println(doc.getMetadata().get("title"));

JSON Extraction

Extract structured JSON with JsonFormat via the scrape endpoint:

import com.firecrawl.models.Document;
import com.firecrawl.models.JsonFormat;
import com.firecrawl.models.ScrapeOptions;
import java.util.List;
import java.util.Map;

JsonFormat jsonFmt = JsonFormat.builder()
    .prompt("Extract the product name and price")
    .schema(Map.of(
        "type", "object",
        "properties", Map.of(
            "name", Map.of("type", "string"),
            "price", Map.of("type", "number")
        )
    ))
    .build();

Document doc = client.scrape(
    "https://example.com/product",
    ScrapeOptions.builder()
        .formats(List.of((Object) jsonFmt))
        .build()
);

System.out.println(doc.getJson());

Crawling a Website

To crawl a website and wait for completion, use crawl.

import com.firecrawl.models.CrawlJob;
import com.firecrawl.models.CrawlOptions;
import com.firecrawl.models.Document;
import com.firecrawl.models.ScrapeOptions;
import java.util.List;

CrawlJob job = client.crawl(
    "https://firecrawl.dev",
    CrawlOptions.builder()
        .limit(50)
        .maxDiscoveryDepth(3)
        .scrapeOptions(
            ScrapeOptions.builder()
                .formats(List.of((Object) "markdown"))
                .build()
        )
        .build()
);

System.out.println("Status: " + job.getStatus());
System.out.println("Progress: " + job.getCompleted() + "/" + job.getTotal());

if (job.getData() != null) {
    for (Document page : job.getData()) {
        System.out.println(page.getMetadata().get("sourceURL"));
    }
}

Start a Crawl

Start a job without waiting using startCrawl.

import com.firecrawl.models.CrawlOptions;
import com.firecrawl.models.CrawlResponse;

CrawlResponse start = client.startCrawl(
    "https://firecrawl.dev",
    CrawlOptions.builder().limit(100).build()
);

System.out.println("Job ID: " + start.getId());

Checking Crawl Status

Check crawl progress with getCrawlStatus.

import com.firecrawl.models.CrawlJob;

CrawlJob status = client.getCrawlStatus(start.getId());
System.out.println("Status: " + status.getStatus());
System.out.println("Progress: " + status.getCompleted() + "/" + status.getTotal());

Cancelling a Crawl

Cancel a running crawl with cancelCrawl.

import java.util.Map;

Map<String, Object> result = client.cancelCrawl(start.getId());
System.out.println(result);

Mapping a Website

Discover links on a site using map.

import com.firecrawl.models.MapData;
import com.firecrawl.models.MapOptions;
import java.util.Map;

MapData data = client.map(
    "https://firecrawl.dev",
    MapOptions.builder()
        .limit(100)
        .search("blog")
        .build()
);

if (data.getLinks() != null) {
    for (Map<String, Object> link : data.getLinks()) {
        System.out.println(link.get("url") + " - " + link.get("title"));
    }
}

Searching the Web

Search with optional search settings using search.

import com.firecrawl.models.SearchData;
import com.firecrawl.models.SearchOptions;
import java.util.Map;

SearchData results = client.search(
    "firecrawl web scraping",
    SearchOptions.builder()
        .limit(10)
        .build()
);

if (results.getWeb() != null) {
    for (Map<String, Object> result : results.getWeb()) {
        System.out.println(result.get("title") + " - " + result.get("url"));
    }
}

Batch Scraping

Scrape multiple URLs in parallel using batchScrape.

import com.firecrawl.models.BatchScrapeJob;
import com.firecrawl.models.BatchScrapeOptions;
import com.firecrawl.models.Document;
import com.firecrawl.models.ScrapeOptions;
import java.util.List;

BatchScrapeJob job = client.batchScrape(
    List.of("https://firecrawl.dev", "https://firecrawl.dev/blog"),
    BatchScrapeOptions.builder()
        .options(
            ScrapeOptions.builder()
                .formats(List.of((Object) "markdown"))
                .build()
        )
        .build()
);

if (job.getData() != null) {
    for (Document doc : job.getData()) {
        System.out.println(doc.getMarkdown());
    }
}

Agent

Run an AI-powered agent with agent.

import com.firecrawl.models.AgentOptions;
import com.firecrawl.models.AgentStatusResponse;

AgentStatusResponse result = client.agent(
    AgentOptions.builder()
        .prompt("Find the pricing plans for Firecrawl and compare them")
        .build()
);

System.out.println(result.getData());

With a JSON schema for structured output:

import com.firecrawl.models.AgentOptions;
import com.firecrawl.models.AgentStatusResponse;
import java.util.List;
import java.util.Map;

AgentStatusResponse result = client.agent(
    AgentOptions.builder()
        .prompt("Extract pricing plan details")
        .urls(List.of("https://firecrawl.dev"))
        .schema(Map.of(
            "type", "object",
            "properties", Map.of(
                "plans", Map.of(
                    "type", "array",
                    "items", Map.of(
                        "type", "object",
                        "properties", Map.of(
                            "name", Map.of("type", "string"),
                            "price", Map.of("type", "string")
                        )
                    )
                )
            )
        ))
        .build()
);

System.out.println(result.getData());

Usage & Metrics

Check concurrency and remaining credits:

import com.firecrawl.models.ConcurrencyCheck;
import com.firecrawl.models.CreditUsage;

ConcurrencyCheck concurrency = client.getConcurrency();
System.out.println("Concurrency: " + concurrency.getConcurrency() + "/" + concurrency.getMaxConcurrency());

CreditUsage credits = client.getCreditUsage();
System.out.println("Remaining credits: " + credits.getRemainingCredits());

Async Support

Async variants are built in and return CompletableFuture.

import com.firecrawl.models.Document;
import com.firecrawl.models.ScrapeOptions;
import java.util.List;
import java.util.concurrent.CompletableFuture;

CompletableFuture<Document> future = client.scrapeAsync(
    "https://example.com",
    ScrapeOptions.builder()
        .formats(List.of((Object) "markdown"))
        .build()
);

future.thenAccept(doc -> System.out.println(doc.getMarkdown()));

Browser

The Java SDK includes Browser Sandbox helpers.

Create a Session

import com.firecrawl.models.BrowserCreateResponse;

BrowserCreateResponse session = client.browser(120, 60, true);
System.out.println(session.getId());
System.out.println(session.getCdpUrl());
System.out.println(session.getLiveViewUrl());

Execute Code

import com.firecrawl.models.BrowserExecuteResponse;

BrowserExecuteResponse run = client.browserExecute(
    session.getId(),
    "await page.goto(\"https://example.com\"); console.log(await page.title());",
    "node",
    60
);

System.out.println(run.getStdout());
System.out.println(run.getExitCode());

List & Close Sessions

import com.firecrawl.models.BrowserDeleteResponse;
import com.firecrawl.models.BrowserListResponse;
import com.firecrawl.models.BrowserSession;

BrowserListResponse active = client.listBrowsers("active");
if (active.getSessions() != null) {
    for (BrowserSession s : active.getSessions()) {
        System.out.println(s.getId() + " - " + s.getStatus());
    }
}

BrowserDeleteResponse closed = client.deleteBrowser(session.getId());
System.out.println("Closed: " + closed.isSuccess());

Configuration

FirecrawlClient.builder() supports the following options:

Option	Type	Default	Description
`apiKey`	`String`	`FIRECRAWL_API_KEY` env var or `firecrawl.apiKey` system property	Your Firecrawl API key
`apiUrl`	`String`	`https://api.firecrawl.dev` (or `FIRECRAWL_API_URL`)	API base URL
`timeoutMs`	`long`	`300000`	HTTP request timeout in ms
`maxRetries`	`int`	`3`	Automatic retries for transient failures
`backoffFactor`	`double`	`0.5`	Exponential backoff factor in seconds
`asyncExecutor`	`Executor`	`ForkJoinPool.commonPool()`	Custom executor for async methods

import com.firecrawl.client.FirecrawlClient;

FirecrawlClient client = FirecrawlClient.builder()
    .apiKey("fc-your-api-key")
    .apiUrl("https://api.firecrawl.dev")
    .timeoutMs(300_000)
    .maxRetries(3)
    .backoffFactor(0.5)
    .build();

Error Handling

The SDK throws runtime exceptions under com.firecrawl.errors.

import com.firecrawl.errors.AuthenticationException;
import com.firecrawl.errors.FirecrawlException;
import com.firecrawl.errors.JobTimeoutException;
import com.firecrawl.errors.RateLimitException;
import com.firecrawl.models.Document;

try {
    Document doc = client.scrape("https://example.com");
} catch (AuthenticationException e) {
    System.err.println("Auth failed: " + e.getMessage());
} catch (RateLimitException e) {
    System.err.println("Rate limited: " + e.getMessage());
} catch (JobTimeoutException e) {
    System.err.println("Job " + e.getJobId() + " timed out after " + e.getTimeoutSeconds() + "s");
} catch (FirecrawlException e) {
    System.err.println("Error " + e.getStatusCode() + ": " + e.getMessage());
}

Overall

Official

Community

Java

Installation

Usage

Scraping a URL

JSON Extraction

Crawling a Website

Start a Crawl

Checking Crawl Status

Cancelling a Crawl

Mapping a Website

Searching the Web

Batch Scraping

Agent

Usage & Metrics

Async Support

Browser

Create a Session

Execute Code

List & Close Sessions

Configuration

Error Handling

​Installation

​Usage

​Scraping a URL

​JSON Extraction

​Crawling a Website

​Start a Crawl

​Checking Crawl Status

​Cancelling a Crawl

​Mapping a Website

​Searching the Web

​Batch Scraping

​Agent

​Usage & Metrics

​Async Support

​Browser

​Create a Session

​Execute Code

​List & Close Sessions

​Configuration

​Error Handling

Installation

Usage

Scraping a URL

JSON Extraction

Crawling a Website

Start a Crawl

Checking Crawl Status

Cancelling a Crawl

Mapping a Website

Searching the Web

Batch Scraping

Agent

Usage & Metrics

Async Support

Browser

Create a Session

Execute Code

List & Close Sessions

Configuration

Error Handling