DOAJ API

doaj.org · Science

Science No Auth Free & Open Academic Research Open Access

Directory of Open Access Journals — search and browse 20,000+ peer-reviewed open access journals and 9+ million articles. No API key required.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET Search journals

Search open access journals by subject.

https://doaj.org/api/search/journals/medicine?pageSize=5

Hover any highlighted part to learn what it does

curl -X GET "https://doaj.org/api/search/journals/medicine?pageSize=5"

import requests
params = {
    "pageSize": "5"
}
response = requests.get(
    "https://doaj.org/api/search/journals/medicine",
    params=params,
)
print(response.json())

const url = new URL('https://doaj.org/api/search/journals/medicine');
url.searchParams.set('pageSize', '5');

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://doaj.org/api/search/journals/medicine")
	q := baseURL.Query()
	q.Set("pageSize", "5")
	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://doaj.org/api/search/journals/medicine")
uri.query = URI.encode_www_form({
  "pageSize" => "5"
})

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://doaj.org/api/search/journals/medicine?" . http_build_query([
    "pageSize" => "5"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Search articles

Full-text search across open access articles.

https://doaj.org/api/search/articles/climate change?pageSize=5

Hover any highlighted part to learn what it does

curl -X GET "https://doaj.org/api/search/articles/climate change?pageSize=5"

import requests
params = {
    "pageSize": "5"
}
response = requests.get(
    "https://doaj.org/api/search/articles/climate change",
    params=params,
)
print(response.json())

const url = new URL('https://doaj.org/api/search/articles/climate change');
url.searchParams.set('pageSize', '5');

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://doaj.org/api/search/articles/climate change")
	q := baseURL.Query()
	q.Set("pageSize", "5")
	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://doaj.org/api/search/articles/climate change")
uri.query = URI.encode_www_form({
  "pageSize" => "5"
})

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://doaj.org/api/search/articles/climate change?" . http_build_query([
    "pageSize" => "5"
]);
$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 ↗

No API key needed
Try GET https://doaj.org/api/search/journals/computer+science?pageSize=5
Search articles: GET https://doaj.org/api/search/articles/machine+learning?pageSize=5
Filter by open access: all results are already open access

What can you build with DOAJ API?

DOAJ API is a Science API. Developers commonly use science APIs for:

accessing research datasets and scientific literature
powering academic and R&D applications
running scientific calculations and simulations
visualising experimental and observational data
integrating with research and reference databases

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

New to APIs? Read our beginner's guide

Open documentation ↗