link.fish API

link · Developer Tools

Developer Tools No Auth Free & Open developer_tools

API to easily extract data from websites. # Base URL All URLs referenced in the documentation have the following base: ``` https://api.link.fish ``` The REST API is only served over HTTPS. To ensure data privacy, unencrypted HTTP is not supported. # Authentication HTTP requests to the REST API are protected with [HTTP Basic authentication](https://en.wikipedia.org/wiki/Basic_access_authentication). You will use the email address of your link.fish account as the username and your API ac

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET Get mobile apps

Visits the URL and checks if there are mobile apps on them and returns the found ones. Will by default return the app identifiers and not the full URL to the apps. To return URLs instead set the parameter "return_urls" to true. The URLs can also be created manually like this: | Property | URL

https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/apps?url=https://example.com&return_urls=false&browser_render=false

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/apps?url=https%3A%2F%2Fexample.com&return_urls=false&browser_render=false"

import requests
params = {
    "url": "https://example.com",
    "return_urls": "false",
    "browser_render": "false"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/apps",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/apps');
url.searchParams.set('url', 'https://example.com');
url.searchParams.set('return_urls', 'false');
url.searchParams.set('browser_render', '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/link.fish/2018-07-05/Urls/apps")
	q := baseURL.Query()
	q.Set("url", "https://example.com")
	q.Set("return_urls", "false")
	q.Set("browser_render", "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/link.fish/2018-07-05/Urls/apps")
uri.query = URI.encode_www_form({
  "url" => "https://example.com",
  "return_urls" => "false",
  "browser_render" => "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/link.fish/2018-07-05/Urls/apps?" . http_build_query([
    "url" => "https://example.com",
    "return_urls" => "false",
    "browser_render" => "false"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Extract data (browser)

Visits the URL with a full browser and extracts the data. This request costs 5 credits.

https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-data?url=https://example.com&screenshot=none&item_format=normal&include_raw_html=false&screenshot_width=640&screenshot_file_format=png&simplify_special_types=false

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-data?url=https%3A%2F%2Fexample.com&screenshot=none&item_format=normal&include_raw_html=false&screenshot_width=640&screenshot_file_format=png&simplify_special_types=false"

import requests
params = {
    "url": "https://example.com",
    "screenshot": "none",
    "item_format": "normal",
    "include_raw_html": "false",
    "screenshot_width": "640",
    "screenshot_file_format": "png",
    "simplify_special_types": "false"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-data",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-data');
url.searchParams.set('url', 'https://example.com');
url.searchParams.set('screenshot', 'none');
url.searchParams.set('item_format', 'normal');
url.searchParams.set('include_raw_html', 'false');
url.searchParams.set('screenshot_width', '640');
url.searchParams.set('screenshot_file_format', 'png');
url.searchParams.set('simplify_special_types', '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/link.fish/2018-07-05/Urls/browser-data")
	q := baseURL.Query()
	q.Set("url", "https://example.com")
	q.Set("screenshot", "none")
	q.Set("item_format", "normal")
	q.Set("include_raw_html", "false")
	q.Set("screenshot_width", "640")
	q.Set("screenshot_file_format", "png")
	q.Set("simplify_special_types", "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/link.fish/2018-07-05/Urls/browser-data")
uri.query = URI.encode_www_form({
  "url" => "https://example.com",
  "screenshot" => "none",
  "item_format" => "normal",
  "include_raw_html" => "false",
  "screenshot_width" => "640",
  "screenshot_file_format" => "png",
  "simplify_special_types" => "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/link.fish/2018-07-05/Urls/browser-data?" . http_build_query([
    "url" => "https://example.com",
    "screenshot" => "none",
    "item_format" => "normal",
    "include_raw_html" => "false",
    "screenshot_width" => "640",
    "screenshot_file_format" => "png",
    "simplify_special_types" => "false"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Generate screenshot (browser)

Visits the URL with full browser and creates a screenshot. This request costs 5 credits.

https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-screenshot?url=https://example.com&type=normal&width=640&file_format=png

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-screenshot?url=https%3A%2F%2Fexample.com&type=normal&width=640&file_format=png"

import requests
params = {
    "url": "https://example.com",
    "type": "normal",
    "width": "640",
    "file_format": "png"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-screenshot",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/link.fish/2018-07-05/Urls/browser-screenshot');
url.searchParams.set('url', 'https://example.com');
url.searchParams.set('type', 'normal');
url.searchParams.set('width', '640');
url.searchParams.set('file_format', 'png');

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/link.fish/2018-07-05/Urls/browser-screenshot")
	q := baseURL.Query()
	q.Set("url", "https://example.com")
	q.Set("type", "normal")
	q.Set("width", "640")
	q.Set("file_format", "png")
	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/link.fish/2018-07-05/Urls/browser-screenshot")
uri.query = URI.encode_www_form({
  "url" => "https://example.com",
  "type" => "normal",
  "width" => "640",
  "file_format" => "png"
})

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/link.fish/2018-07-05/Urls/browser-screenshot?" . http_build_query([
    "url" => "https://example.com",
    "type" => "normal",
    "width" => "640",
    "file_format" => "png"
]);
$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 link.fish API?

link.fish API 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. link.fish 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 ↗