USAspending.gov
Government
US federal spending data
Auth
No Auth
HTTPS
Yes
CORS
Unknown
API URL
Common Use Cases
- •Build location-aware applications with mapping features
- •Create public transit and navigation tools
- •Develop government data dashboards and civic tech apps
Integration Guide
Review the API Documentation
Visit the official USAspending.gov documentation to understand available endpoints, request formats, and response structures. Familiarize yourself with the API's rate limits and usage policies before integration.
No Authentication Required
Good news — USAspending.gov does not require any authentication. You can start making API requests directly without registering for an API key or setting up OAuth credentials.
Use HTTPS for Secure Requests
USAspending.gov supports HTTPS, ensuring encrypted communication. Always use HTTPS endpoints in production to protect data in transit and comply with modern web security standards.
CORS Status Unknown — Test Before Use
The CORS status for USAspending.gov is unknown. Test with a simple browser-based request to verify. If CORS is not supported, set up a backend proxy to handle requests server-side.
Implement and Test
Write your API integration code, start with a simple test request to verify connectivity. Implement proper error handling for network failures, rate limits, and invalid responses. Monitor your API usage to stay within any limits.
Code Examples
JavaScript / Fetch API:
// JavaScript example
fetch("https://api.usaspending.gov/")
.then(response => {
if (!response.ok) {
throw new Error(`HTTP error! status: ${response.status}`);
}
return response.json();
})
.then(data => {
console.log("API response:", data);
})
.catch(error => {
console.error("Error fetching from USAspending.gov:", error);
});Python / Requests:
# Python example
import requests
response = requests.get("https://api.usaspending.gov/")
if response.status_code == 200:
data = response.json()
print("API response:", data)
else:
print(f"Error: {response.status_code}")