Flat API

flat · Media

Media No Auth Free & Open media collaboration

The Flat API allows you to easily extend the abilities of the [Flat Platform](https://flat.io), with a wide range of use cases including the following: * Creating and importing new music scores using MusicXML, MIDI, Guitar Pro (GP3, GP4, GP5, GPX, GP), PowerTab, TuxGuitar and MuseScore files * Browsing, updating, copying, exporting the user's scores (for example in MP3, WAV or MIDI) * Managing educational resources with Flat for Education: creating & updating the organization accounts, the clas

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET List the classes available for the current user

List the classes available for the current user

https://api.apis.guru/v2/specs/flat.io/2.13.0/classes?state=active

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/flat.io/2.13.0/classes?state=active"

import requests
params = {
    "state": "active"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/flat.io/2.13.0/classes",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/flat.io/2.13.0/classes');
url.searchParams.set('state', 'active');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/flat.io/2.13.0/classes")
	q := baseURL.Query()
	q.Set("state", "active")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", 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/flat.io/2.13.0/classes")
uri.query = URI.encode_www_form({
  "state" => "active"
})

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

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

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

<?php
$url = "https://api.apis.guru/v2/specs/flat.io/2.13.0/classes?" . http_build_query([
    "state" => "active"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET List the collections

Use this method to list the user's collections contained in `parent` (by default in the `root` collection). If no sort option is provided, the collections are sorted by `creationDate` `desc`. Note that this method will not include the `parent` collection in the listing. For example, if you need the

https://api.apis.guru/v2/specs/flat.io/2.13.0/collections?next=example&sort=creationDate&limit=25&parent=root&previous=example&direction=asc

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/flat.io/2.13.0/collections?next=example&sort=creationDate&limit=25&parent=root&previous=example&direction=asc"

import requests
params = {
    "next": "example",
    "sort": "creationDate",
    "limit": "25",
    "parent": "root",
    "previous": "example",
    "direction": "asc"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/flat.io/2.13.0/collections",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/flat.io/2.13.0/collections');
url.searchParams.set('next', 'example');
url.searchParams.set('sort', 'creationDate');
url.searchParams.set('limit', '25');
url.searchParams.set('parent', 'root');
url.searchParams.set('previous', 'example');
url.searchParams.set('direction', 'asc');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/flat.io/2.13.0/collections")
	q := baseURL.Query()
	q.Set("next", "example")
	q.Set("sort", "creationDate")
	q.Set("limit", "25")
	q.Set("parent", "root")
	q.Set("previous", "example")
	q.Set("direction", "asc")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", 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/flat.io/2.13.0/collections")
uri.query = URI.encode_www_form({
  "next" => "example",
  "sort" => "creationDate",
  "limit" => "25",
  "parent" => "root",
  "previous" => "example",
  "direction" => "asc"
})

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

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

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

<?php
$url = "https://api.apis.guru/v2/specs/flat.io/2.13.0/collections?" . http_build_query([
    "next" => "example",
    "sort" => "creationDate",
    "limit" => "25",
    "parent" => "root",
    "previous" => "example",
    "direction" => "asc"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Get current user profile

Get details about the current authenticated User.

https://api.apis.guru/v2/specs/flat.io/2.13.0/me?onlyId=false

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/flat.io/2.13.0/me?onlyId=false"

import requests
params = {
    "onlyId": "false"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/flat.io/2.13.0/me",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/flat.io/2.13.0/me');
url.searchParams.set('onlyId', 'false');

const response = await fetch(url); 
const data = await response.json();
console.log(data);

package main

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

func main() {
	baseURL, _ := url.Parse("https://api.apis.guru/v2/specs/flat.io/2.13.0/me")
	q := baseURL.Query()
	q.Set("onlyId", "false")
	baseURL.RawQuery = q.Encode()
	targetURL := baseURL.String()
	req, _ := http.NewRequest("GET", 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/flat.io/2.13.0/me")
uri.query = URI.encode_www_form({
  "onlyId" => "false"
})

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

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

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

<?php
$url = "https://api.apis.guru/v2/specs/flat.io/2.13.0/me?" . http_build_query([
    "onlyId" => "false"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($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 Flat API?

Flat API is a Media API. Developers commonly use media APIs for:

storing and delivering images, video, and audio
building digital asset management and media libraries
transcoding and optimising media for the web
adding video streaming and playback to your app
automating content tagging and metadata extraction

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

New to APIs? Read our beginner's guide · Learn about API keys · What is REST?

Open documentation ↗