ODN API

opendatanetwork · Data

Data No Auth Free & Open open_data

The Socrata OpenDataNetwork (ODN) REST API exposes public data, often continuosly updated and enhanced, from many thousands of public government and non profit agencies. Much of this data originating from independent sources is fused together to create new, and often powerful, entity level data. The API, in addition to search and autosuggest capabilities for finding datasets, enables data based comparisons across geographical regions such as states, counties, metropolitan areas, cities and zip

Authentication

No authentication requiredFree to use with no key needed.

Sample Requests

GET Get Entities

Get Entities

https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/entity/v1?app_token=example&entity_id=example&entity_name=example&entity_type=example

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/entity/v1?app_token=example&entity_id=example&entity_name=example&entity_type=example"

import requests
params = {
    "app_token": "example",
    "entity_id": "example",
    "entity_name": "example",
    "entity_type": "example"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/entity/v1",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/entity/v1');
url.searchParams.set('app_token', 'example');
url.searchParams.set('entity_id', 'example');
url.searchParams.set('entity_name', 'example');
url.searchParams.set('entity_type', 'example');

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/opendatanetwork.com/1.0.0/entity/v1")
	q := baseURL.Query()
	q.Set("app_token", "example")
	q.Set("entity_id", "example")
	q.Set("entity_name", "example")
	q.Set("entity_type", "example")
	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/opendatanetwork.com/1.0.0/entity/v1")
uri.query = URI.encode_www_form({
  "app_token" => "example",
  "entity_id" => "example",
  "entity_name" => "example",
  "entity_type" => "example"
})

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/opendatanetwork.com/1.0.0/entity/v1?" . http_build_query([
    "app_token" => "example",
    "entity_id" => "example",
    "entity_name" => "example",
    "entity_type" => "example"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Find all available data for some entities

Find all available data for some entities

https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/availability?app_token=example&entity_id=example

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/availability/?app_token=example&entity_id=example"

import requests
params = {
    "app_token": "example",
    "entity_id": "example"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/availability/",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/availability/');
url.searchParams.set('app_token', 'example');
url.searchParams.set('entity_id', 'example');

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/opendatanetwork.com/1.0.0/data/v1/availability/")
	q := baseURL.Query()
	q.Set("app_token", "example")
	q.Set("entity_id", "example")
	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/opendatanetwork.com/1.0.0/data/v1/availability/")
uri.query = URI.encode_www_form({
  "app_token" => "example",
  "entity_id" => "example"
})

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/opendatanetwork.com/1.0.0/data/v1/availability/?" . http_build_query([
    "app_token" => "example",
    "entity_id" => "example"
]);
$opts = ["http" => [
    "method" => "GET",
]];
$ctx = stream_context_create($opts);
$res = file_get_contents($url, false, $ctx);
print_r(json_decode($res, true));

GET Get values for variables

Get values for variables

https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/values?format=google&describe=true&forecast=1&variable=example&app_token=example&entity_id=example

Hover any highlighted part to learn what it does

curl -X GET "https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/values?format=google&describe=true&forecast=1&variable=example&app_token=example&entity_id=example"

import requests
params = {
    "format": "google",
    "describe": "true",
    "forecast": "1",
    "variable": "example",
    "app_token": "example",
    "entity_id": "example"
}
response = requests.get(
    "https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/values",
    params=params,
)
print(response.json())

const url = new URL('https://api.apis.guru/v2/specs/opendatanetwork.com/1.0.0/data/v1/values');
url.searchParams.set('format', 'google');
url.searchParams.set('describe', 'true');
url.searchParams.set('forecast', '1');
url.searchParams.set('variable', 'example');
url.searchParams.set('app_token', 'example');
url.searchParams.set('entity_id', 'example');

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/opendatanetwork.com/1.0.0/data/v1/values")
	q := baseURL.Query()
	q.Set("format", "google")
	q.Set("describe", "true")
	q.Set("forecast", "1")
	q.Set("variable", "example")
	q.Set("app_token", "example")
	q.Set("entity_id", "example")
	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/opendatanetwork.com/1.0.0/data/v1/values")
uri.query = URI.encode_www_form({
  "format" => "google",
  "describe" => "true",
  "forecast" => "1",
  "variable" => "example",
  "app_token" => "example",
  "entity_id" => "example"
})

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/opendatanetwork.com/1.0.0/data/v1/values?" . http_build_query([
    "format" => "google",
    "describe" => "true",
    "forecast" => "1",
    "variable" => "example",
    "app_token" => "example",
    "entity_id" => "example"
]);
$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 ODN API?

ODN API 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. ODN 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 ↗