Notion API

notion · Company

Company No Auth Free & Open collaboration

Hello and welcome! To make use of this API collection collection as it's written, please duplicate [this database template](https://www.notion.so/8e2c2b769e1d47d287b9ed3035d607ae?v=dc1b92875fb94f10834ba8d36549bd2a). [Create an integration](https://www.notion.so/my-integrations) to retrieve an API token, add your database and page ID's as variables in the collection, and start making your requests! For our full documentation, including sample integrations and guides, visit [developers.notion.c

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET Retrieve comments

Retrieve a user object using the ID specified in the request path.

https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/comments?block_id={{BLOCK_ID}}&page_size=100

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/comments?block_id=%7B%7BBLOCK_ID%7D%7D&page_size=100"

import requests
params = {
    "block_id": "{{BLOCK_ID}}",
    "page_size": "100"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/comments",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/comments');
url.searchParams.set('block_id', '{{BLOCK_ID}}');
url.searchParams.set('page_size', '100');

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/notion.com/1.0.0/v1/comments")
	q := baseURL.Query()
	q.Set("block_id", "{{BLOCK_ID}}")
	q.Set("page_size", "100")
	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/notion.com/1.0.0/v1/comments")
uri.query = URI.encode_www_form({
  "block_id" => "{{BLOCK_ID}}",
  "page_size" => "100"
})

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/notion.com/1.0.0/v1/comments?" . http_build_query([
    "block_id" => "{{BLOCK_ID}}",
    "page_size" => "100"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Retrieve block children

Retrieve block children

https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}/children?page_size=100

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}/children?page_size=100"

import requests
params = {
    "page_size": "100"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}/children",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}/children');
url.searchParams.set('page_size', '100');

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/notion.com/1.0.0/v1/blocks/{id}/children")
	q := baseURL.Query()
	q.Set("page_size", "100")
	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/notion.com/1.0.0/v1/blocks/{id}/children")
uri.query = URI.encode_www_form({
  "page_size" => "100"
})

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/notion.com/1.0.0/v1/blocks/{id}/children?" . http_build_query([
    "page_size" => "100"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Retrieve a block

Retrieve a block

https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}"

import requests
response = requests.get(
    "https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}",
)
print(response.json())

const url = 'https://api.apis.guru/v2/specs/notion.com/1.0.0/v1/blocks/{id}';

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/notion.com/1.0.0/v1/blocks/{id}"
	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/notion.com/1.0.0/v1/blocks/{id}")

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/notion.com/1.0.0/v1/blocks/{id}";
$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 Notion API?

Notion API is a Company API. Developers commonly use company APIs for:

enriching CRM records with company firmographics
building lead-generation and prospecting tools
verifying business identity and registration details
monitoring competitors and market intelligence
powering B2B data enrichment pipelines

No authentication required. This API is open — no signup or key needed. Ideal for quick prototypes and public-facing features. Notion 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 ↗