How to scrape Linktree with Kotlin

A Linktree page: name, bio, avatar, every link and social icon. This tutorial gets it with a short Kotlin program and the Linktree API. Each successful call costs 1 credit; errors and not-found answers are free.

1. Get an API key

Sign in to get a key and 100 free credits, no card. Then put the key in an environment variable so it stays out of your code:

export SCRAPEIO_API_KEY="your_key_here"

2. Set up Kotlin

Kotlin on JVM 11 or newer

3. Write the code

Save this as Scrape.kt. Replace PASTE_URL_HERE with a real url.

import java.net.URI
import java.net.URLEncoder
import java.net.http.HttpClient
import java.net.http.HttpRequest
import java.net.http.HttpResponse

fun main() {
    val params = mapOf("url" to "PASTE_URL_HERE")
    val query = params.entries.joinToString("&") { "${it.key}=${URLEncoder.encode(it.value, Charsets.UTF_8)}" }
    val req = HttpRequest.newBuilder()
        .uri(URI.create("https://scrapeio.com/v1/linktree?" + query))
        .header("x-api-key", System.getenv("SCRAPEIO_API_KEY"))
        .build()
    val res = HttpClient.newHttpClient().send(req, HttpResponse.BodyHandlers.ofString())
    check(res.statusCode() == 200) { "HTTP ${res.statusCode()}" }
    println(res.body())
}

4. Run it

kotlinc Scrape.kt -include-runtime -d scrape.jar && java -jar scrape.jar

The response has the same envelope on every endpoint: success, cached, credits_used, credits_remaining and data. Shared fields such as handle, followers, plays, likes and created_at have the same names on every platform.

Parameters

Name	Type	Description
`url` (required)	string	Linktree URL or username.

Errors and what you pay

Status	Meaning	Charged
`200`	Success	Yes, unless cached
`400`	A parameter is missing or wrong	No
`401`	The key is missing or invalid	No
`402`	Not enough credits	No
`403`	The account or post is private	No
`404`	Not found on the platform	No
`429`	More than 300 requests a minute	No
`502`	Every source is down; retry shortly	No

Same endpoint in other languages

Python · Node.js · JavaScript · TypeScript · Go · Rust · Java · C# · PHP · Ruby · Swift · R

Prefer no code?

Connect the MCP server to Claude Code, Cursor or Codex and ask in plain English. The agent uses the linktree tool for you.

100 free credits, no card. Credits never expire.

Get API key