For the complete documentation index, see llms.txt.
Add configurable line numbers to the start or end of each text line.
One POST adds Add Line Numbers to your app, site, workflow, or agent — formula, validation, edge cases, and docs already handled.
prefer a UI? open Add Line Numbers on miniwebtool.com →
POST https://api.miniwebtool.com/v1/tools/add-line-numbers/run
| Field | Type | Req. |
|---|---|---|
text
|
str |
✓ |
prefix
|
str |
— |
suffix
|
str |
— |
position
start | end
|
str |
— |
remove_blank
|
bool |
— |
start
|
int |
— |
65536 bytes.no_body_logs{
"request_id": "01K...",
"tool": "add-line-numbers",
"tool_version": "2026-04-22",
"credits_used": 1,
"result": { ... }
}
curl -X POST https://api.miniwebtool.com/v1/tools/add-line-numbers/run \
-H 'Authorization: Bearer mwt_live_YOUR_KEY' \
-H 'Content-Type: application/json' \
-d '{"text":"alpha\nbeta\n\ngamma","prefix":"","suffix":". ","position":"start","remove_blank":true,"start":1}'
import requests
resp = requests.post(
'https://api.miniwebtool.com/v1/tools/add-line-numbers/run',
headers={'Authorization': 'Bearer mwt_live_YOUR_KEY'},
json={'text': 'alpha\nbeta\n\ngamma', 'prefix': '', 'suffix': '. ', 'position': 'start', 'remove_blank': True, 'start': 1},
)
resp.raise_for_status()
print(resp.json())
const resp = await fetch(
'https://api.miniwebtool.com/v1/tools/add-line-numbers/run',
{
method: 'POST',
headers: {
'Authorization': 'Bearer mwt_live_YOUR_KEY',
'Content-Type': 'application/json',
},
body: JSON.stringify({"text":"alpha\nbeta\n\ngamma","prefix":"","suffix":". ","position":"start","remove_blank":true,"start":1}),
}
);
const data = await resp.json();
console.log(data);
<?php
$ch = curl_init('https://api.miniwebtool.com/v1/tools/add-line-numbers/run');
curl_setopt_array($ch, [
CURLOPT_POST => true,
CURLOPT_RETURNTRANSFER => true,
CURLOPT_HTTPHEADER => [
'Authorization: Bearer mwt_live_YOUR_KEY',
'Content-Type: application/json',
],
CURLOPT_POSTFIELDS => json_encode([
'text' => 'alpha
beta
gamma',
'prefix' => '',
'suffix' => '. ',
'position' => 'start',
'remove_blank' => true,
'start' => 1
]),
]);
$resp = curl_exec($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/add-line-numbers/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' => 'alpha
beta
gamma',
'prefix' => '',
'suffix' => '. ',
'position' => 'start',
'remove_blank' => true,
'start' => 1
}.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": "alpha
beta
gamma",
"prefix": "",
"suffix": ". ",
"position": "start",
"remove_blank": true,
"start": 1,
})
req, _ := http.NewRequest("POST", "https://api.miniwebtool.com/v1/tools/add-line-numbers/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/add-line-numbers/run"))
.header("Authorization", "Bearer mwt_live_YOUR_KEY")
.header("Content-Type", "application/json")
.POST(HttpRequest.BodyPublishers.ofString("{\"text\":\"alpha\\nbeta\\n\\ngamma\",\"prefix\":\"\",\"suffix\":\". \",\"position\":\"start\",\"remove_blank\":true,\"start\":1}"))
.build();
var resp = client.send(req, HttpResponse.BodyHandlers.ofString());
System.out.println(resp.body());
text, . See the Request body table above for the full schema.
https://api.miniwebtool.com/v1/tools/add-line-numbers/run
Authorization: Bearer <key> and Content-Type: application/json. Copy-paste snippets in 7 languages are under Code examples.
{request_id, tool, tool_version, credits_used, result}. The typed output lives in result.
Add configurable line numbers to the start or end of each text line. Use it to add this utility without rebuilding formulas, validation, examples, and documentation.
1 credit per successful call. Failed calls (validation errors, 5xx) don't bill.
Required fields: text. Full schema at /v1/openapi.json.
Yes — same input, same output, forever. Tool version 2026-04-22; output shape is stable within a major version.
Yes. Connect to https://api.miniwebtool.com/v1/mcp over the Model Context Protocol. The agent discovers `add-line-numbers` with its JSON Schema automatically, so the model can plan while MiniWebtool handles the exact tool result.
JSON with a stable envelope: `{request_id, tool, tool_version, credits_used, result}`. Errors are RFC 7807 `application/problem+json`.
Every endpoint on this site is also exposed via the
Model Context Protocol at
https://api.miniwebtool.com/v1/mcp.
Claude, Cursor, and any MCP-capable agent can discover this tool
(add-line-numbers)
and its JSON Schema automatically — no client codegen.
# List tools the agent can call
curl -s https://api.miniwebtool.com/v1/mcp \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"tools/list"}' \
| jq '.result.tools[] | select(.name=="add-line-numbers")'