How to scrape Kwai User Posts with Kotlin

User Posts This tutorial gets it with a short Kotlin program and the Kwai User Posts 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.

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()
    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/kwai/user/posts?" + 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())
}

This prints the first page. To get the next one, send the value of data.cursor as the cursor parameter and call again until data.has_more is false.

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

Errors and what you pay

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 call_endpoint with path /v1/kwai/user/posts for you.

More Kwai tutorials in Kotlin

• How to scrape Kwai Post with Kotlin
• How to scrape Kwai Profile with Kotlin