RESTful4Up

restful4up · Developer Tools

Developer Tools No Auth Free & Open developer_tools

RESTful API 4 Unipacker

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

POST applyYaraRules

apply given YARA rules to the given executable. (upto 10 rules)

https://api.apis.guru/v2/specs/restful4up.local/1.0.0/apply-yara-rules

Hover any highlighted part to learn what it does

curl -X POST "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/apply-yara-rules"

import requests
response = requests.post(
    "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/apply-yara-rules",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/restful4up.local/1.0.0/apply-yara-rules';

const response = await fetch(url, {
  method: 'POST',
}); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/apply-yara-rules"
	req, _ := http.NewRequest("POST", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/restful4up.local/1.0.0/apply-yara-rules")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Post.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/apply-yara-rules";
$opts = ["http" => [
    "method" => "POST",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

POST emulationOutput

try to get the emulation output after unpacking the file

https://api.apis.guru/v2/specs/restful4up.local/1.0.0/emulation-output

Hover any highlighted part to learn what it does

curl -X POST "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/emulation-output"

import requests
response = requests.post(
    "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/emulation-output",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/restful4up.local/1.0.0/emulation-output';

const response = await fetch(url, {
  method: 'POST',
}); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/emulation-output"
	req, _ := http.NewRequest("POST", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/restful4up.local/1.0.0/emulation-output")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Post.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/emulation-output";
$opts = ["http" => [
    "method" => "POST",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

POST generatePartialYaraRule

generate partial YARA rules for give executable. (Rule without the condition section)

https://api.apis.guru/v2/specs/restful4up.local/1.0.0/generate-partial-yara-rules

Hover any highlighted part to learn what it does

curl -X POST "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/generate-partial-yara-rules"

import requests
response = requests.post(
    "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/generate-partial-yara-rules",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/restful4up.local/1.0.0/generate-partial-yara-rules';

const response = await fetch(url, {
  method: 'POST',
}); 
const data = await response.json();
console.log(data);

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	targetURL := "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/generate-partial-yara-rules"
	req, _ := http.NewRequest("POST", targetURL, nil)

	client := &http.Client{}
	resp, _ := client.Do(req)
	defer resp.Body.Close()
	body, _ := io.ReadAll(resp.Body)
	fmt.Println(string(body))
}

require "net/http"
require "json"

uri = URI("https://api.apis.guru/v2/specs/restful4up.local/1.0.0/generate-partial-yara-rules")

http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = uri.scheme == "https"

req = Net::HTTP::Post.new(uri)

res = http.request(req)
puts JSON.parse(res.body)

<?php
$url = "https://api.apis.guru/v2/specs/restful4up.local/1.0.0/generate-partial-yara-rules";
$opts = ["http" => [
    "method" => "POST",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

Postman Setup Guide

Get Postman ↗

See official documentation for authentication and setup.

What can you build with RESTful4Up?

RESTful4Up is a Developer Tools API. Developers commonly use developer tools APIs for:

automating code review and quality checks
integrating CI/CD pipelines and build systems
managing feature flags and A/B tests
monitoring errors and application performance
generating and validating test data

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. RESTful4Up is free to use, making it a low-risk choice to experiment with.

New to APIs? Read our beginner's guide

Open documentation ↗