What does the Find Longest Line API do?

Rank text lines by character, word, or byte length and return the longest lines. Use it when you need exact JSON instead of asking an LLM to recreate well-defined utility logic.

How much does one call to Find Longest Line cost?

1 credit per successful call. Failed calls (validation errors, 5xx) don't bill.

What parameters does the Find Longest Line API require?

Required fields: text. Full schema at /v1/openapi.json.

Is the Find Longest Line API deterministic?

Yes — same input, same output, forever. Tool version 2026-04-22; output shape is stable within a major version.

Can an AI agent call the Find Longest Line API?

Yes. Connect to https://api.miniwebtool.com/v1/mcp over the Model Context Protocol. The agent discovers `find-longest-line` with its JSON Schema automatically, so the model can plan while MiniWebtool handles the exact tool result.

What format does the API return?

JSON with a stable envelope: `{request_id, tool, tool_version, credits_used, result}`. Errors are RFC 7807 `application/problem+json`.

Find Longest Line API — MiniWebtool

Endpoint

POST https://api.miniwebtool.com/v1/tools/find-longest-line/run

Request body

Field	Type	Req.
`text`	`str`	✓
`count_mode` characters \| characters_no_space \| words \| bytes	`str`	—
`show_top` 1 \| 3 \| 5 \| 10 \| all	`str`	—

Cost & access

1 credit per successful call.
Starts on: Free.
Max payload: 65536 bytes.
Privacy mode: no_body_logs
Available on: free, starter, pro, business, scale

Response envelope

{
  "request_id": "01K...",
  "tool": "find-longest-line",
  "tool_version": "2026-04-22",
  "credits_used": 1,
  "result": { ... }
}

Try it

API key *

Stored only in this browser tab. Don't have one? Start free — get a key →

text (str) *

count_mode (str)

characters | characters_no_space | words | bytes

show_top (str)

1 | 3 | 5 | 10 | all

Response

Response headers

Code examples

curl -X POST https://api.miniwebtool.com/v1/tools/find-longest-line/run \
  -H 'Authorization: Bearer mwt_live_YOUR_KEY' \
  -H 'Content-Type: application/json' \
  -d '{"text":"short\nmuch longer line\nmid","count_mode":"characters","show_top":"3"}'

import requests

resp = requests.post(
    'https://api.miniwebtool.com/v1/tools/find-longest-line/run',
    headers={'Authorization': 'Bearer mwt_live_YOUR_KEY'},
    json={'text': 'short\nmuch longer line\nmid', 'count_mode': 'characters', 'show_top': '3'},
)
resp.raise_for_status()
print(resp.json())

const resp = await fetch(
  'https://api.miniwebtool.com/v1/tools/find-longest-line/run',
  {
    method: 'POST',
    headers: {
      'Authorization': 'Bearer mwt_live_YOUR_KEY',
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({"text":"short\nmuch longer line\nmid","count_mode":"characters","show_top":"3"}),
  }
);
const data = await resp.json();
console.log(data);

<?php
$ch = curl_init('https://api.miniwebtool.com/v1/tools/find-longest-line/run');
curl_setopt_array($ch, [
    CURLOPT_POST => true,
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER => [
        'Authorization: Bearer mwt_live_YOUR_KEY',
        'Content-Type: application/json',
    ],
    CURLOPT_POSTFIELDS => json_encode([
    'text' => 'short
much longer line
mid',
    'count_mode' => 'characters',
    'show_top' => '3'
]),
]);
$resp = curl_exec($ch);
curl_close($ch);
print_r(json_decode($resp, true));

require 'net/http'
require 'json'
require 'uri'

uri = URI('https://api.miniwebtool.com/v1/tools/find-longest-line/run')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = (uri.scheme == 'https')

req = Net::HTTP::Post.new(uri)
req['Authorization'] = 'Bearer mwt_live_YOUR_KEY'
req['Content-Type'] = 'application/json'
req.body = {
  'text' => 'short
much longer line
mid',
  'count_mode' => 'characters',
  'show_top' => '3'
}.to_json

resp = http.request(req)
puts JSON.parse(resp.body).inspect

package main

import (
  "bytes"
  "encoding/json"
  "fmt"
  "io"
  "net/http"
)

func main() {
  body, _ := json.Marshal(map[string]interface{}{
    "text": "short
much longer line
mid",
    "count_mode": "characters",
    "show_top": "3",
  })
  req, _ := http.NewRequest("POST", "https://api.miniwebtool.com/v1/tools/find-longest-line/run", bytes.NewReader(body))
  req.Header.Set("Authorization", "Bearer mwt_live_YOUR_KEY")
  req.Header.Set("Content-Type", "application/json")

  resp, err := http.DefaultClient.Do(req)
  if err != nil { panic(err) }
  defer resp.Body.Close()
  out, _ := io.ReadAll(resp.Body)
  fmt.Println(string(out))
}

import java.net.URI;
import java.net.http.*;

var client = HttpClient.newHttpClient();
var req = HttpRequest.newBuilder()
    .uri(URI.create("https://api.miniwebtool.com/v1/tools/find-longest-line/run"))
    .header("Authorization", "Bearer mwt_live_YOUR_KEY")
    .header("Content-Type", "application/json")
    .POST(HttpRequest.BodyPublishers.ofString("{\"text\":\"short\\nmuch longer line\\nmid\",\"count_mode\":\"characters\",\"show_top\":\"3\"}"))
    .build();

var resp = client.send(req, HttpResponse.BodyHandlers.ofString());
System.out.println(resp.body());

Find Longest Line API

Endpoint

Request body

Cost & access

Response envelope

Try it

Code examples

How to call Find Longest Line

Frequently asked

Use from an AI agent

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