# List sources

Every publisher and wire service in the feed, with 30-day volume.

`GET https://api.marketnewsapi.com/v1/sources`

Use the returned `domain` values with the `sources` and `exclude_sources` filters.

Requires an API key. See [authentication](/docs/authentication).

## Query parameters

- `category` (string) Only sources that published in this category. One of `stocks`.
- `type` (string) Only sources of this article type. One of `news`, `press_release`, `legal`.

## Example request

```curl
curl "https://api.marketnewsapi.com/v1/sources?category=stocks" \
 -H "Authorization: Bearer $MARKETNEWSAPI_KEY"
```

```python
import json
import os

import requests

resp = requests.get(
 "https://api.marketnewsapi.com/v1/sources",
 params={"category": "stocks"},
 headers={"Authorization": f"Bearer {os.environ['MARKETNEWSAPI_KEY']}"},
 timeout=10,
)
resp.raise_for_status()
print(json.dumps(resp.json(), indent=2))
```

```javascript
const params = new URLSearchParams({ category: "stocks" });
const res = await fetch(`https://api.marketnewsapi.com/v1/sources?${params}`, {
 headers: { Authorization: `Bearer ${process.env.MARKETNEWSAPI_KEY}` },
});
if (!res.ok) throw new Error(`HTTP ${res.status}`);
console.log(await res.json());
```

```go
package main

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

func main() {
	req, _ := http.NewRequest("GET", "https://api.marketnewsapi.com/v1/sources?category=stocks", nil)
	req.Header.Set("Authorization", "Bearer "+os.Getenv("MARKETNEWSAPI_KEY"))

	res, err := http.DefaultClient.Do(req)
	if err != nil {
 panic(err)
	}
	defer res.Body.Close()

	body, _ := io.ReadAll(res.Body)
	fmt.Println(string(body))
}
```

```php
<?php
$query = http_build_query(['category' => 'stocks']);
$ch = curl_init("https://api.marketnewsapi.com/v1/sources?$query");
curl_setopt_array($ch, [
 CURLOPT_RETURNTRANSFER => true,
 CURLOPT_HTTPHEADER => ['Authorization: Bearer ' . getenv('MARKETNEWSAPI_KEY')],
]);
$body = json_decode(curl_exec($ch), true);
curl_close($ch);

print_r($body);
```

```ruby
require "json"
require "net/http"

uri = URI("https://api.marketnewsapi.com/v1/sources")
uri.query = URI.encode_www_form(category: "stocks")
req = Net::HTTP::Get.new(uri)
req["Authorization"] = "Bearer #{ENV.fetch('MARKETNEWSAPI_KEY')}"

res = Net::HTTP.start(uri.host, uri.port, use_ssl: true) { |http| http.request(req) }
puts JSON.pretty_generate(JSON.parse(res.body))
```

```csharp
using System.Net.Http.Headers;

using var http = new HttpClient();
http.DefaultRequestHeaders.Authorization = new AuthenticationHeaderValue(
 "Bearer", Environment.GetEnvironmentVariable("MARKETNEWSAPI_KEY"));

var json = await http.GetStringAsync("https://api.marketnewsapi.com/v1/sources?category=stocks");
Console.WriteLine(json);
```

```java
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

public class Main {
 public static void main(String[] args) throws Exception {
 HttpRequest req = HttpRequest.newBuilder()
 .uri(URI.create("https://api.marketnewsapi.com/v1/sources?category=stocks"))
 .header("Authorization", "Bearer " + System.getenv("MARKETNEWSAPI_KEY"))
 .build();

 HttpResponse<String> res = HttpClient.newHttpClient()
 .send(req, HttpResponse.BodyHandlers.ofString());
 System.out.println(res.body());
 }
}
```

## Example response

200 OK

```json
{
 "data": [
 {
 "name": "GlobeNewswire",
 "domain": "globenewswire.com",
 "categories": [
 "stocks"
 ],
 "types": [
 "press_release"
 ],
 "articles_30d": 18432
 },
 {
 "name": "Business Wire",
 "domain": "businesswire.com",
 "categories": [
 "stocks"
 ],
 "types": [
 "press_release"
 ],
 "articles_30d": 15207
 },
 {
 "name": "Example Publisher",
 "domain": "example-publisher.com",
 "categories": [
 "stocks"
 ],
 "types": [
 "news"
 ],
 "articles_30d": 2310
 }
 ],
 "meta": {
 "count": 3
 }
}
```

## Try it

## Errors

This endpoint returns the standard [error format](/docs/errors). The most common errors are `400 invalid_parameter`, `401 invalid_api_key` and `429 daily_limit_reached` (Free plan).