Wellknown

wellknown · Data

Data No Auth Free & Open open_data

A registry of AI Plugins.

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET List all the Wellknown AI Plugins.

List all the Wellknown AI Plugins. Returns ai-plugin.json objects in an array

https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/plugins

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/plugins"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/plugins",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/plugins';

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

package main

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

func main() {
	targetURL := "https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/plugins"
	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/wellknown.ai/1.0.0/plugins")

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/wellknown.ai/1.0.0/plugins";
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET GET /api/plugins

Returns a list of Wellknown ai-plugins json objects from the Wellknown ai-plugins registry.

https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/api/plugins

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/api/plugins"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/api/plugins",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/api/plugins';

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

package main

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

func main() {
	targetURL := "https://api.apis.guru/v2/specs/wellknown.ai/1.0.0/api/plugins"
	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/wellknown.ai/1.0.0/api/plugins")

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/wellknown.ai/1.0.0/api/plugins";
$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 Wellknown?

Wellknown is a Data API. Developers commonly use data APIs for:

enriching your app with third-party datasets
building data pipelines and ETL workflows
querying and searching large datasets
powering research, analysis, and reporting tools
syncing reference data into your own systems

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

New to APIs? Read our beginner's guide

Open documentation ↗