JSONPlaceholder API

Overview

Measurement Record

What actually happened when we called this API from our own infrastructure. Every value below was recorded by the request, not copied from the provider's documentation.

Request

GET https://jsonplaceholder.typicode.com/posts/1

Result

HTTP 200 · application/json · 292 bytes · compressed

Response time

42 ms (median of 3) · fastest 38 ms

Transport

TLSv1.3 · TLS_AES_256_GCM_SHA384 · certificate issued by Google Trust Services

Browser CORS

Allowed — Access-Control-Allow-Origin: https://apisscore.com

Rate limit

1000 per window (999 remaining at test time)

Served by

cloudflare

Recorded

2026-08-10

Fields Returned

Top-level fields present in the response we captured, with the type and value we actually received.

Captured Response

Captured from a real request to https://jsonplaceholder.typicode.com/posts/1 on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.

{
  "userId": 1,
  "id": 1,
  "title": "sunt aut facere repellat provident occaecati excepturi optio reprehenderit",
  "body": "quia et suscipit\nsuscipit recusandae consequuntur expedita et cum\nreprehenderit molestiae ut ut quas totam\nnostrum rerum est autem sunt rem eveniet architecto"
}

Implementation Example

Calls a real endpoint of this API. Replace any placeholder credentials with your own key.

const url = "https://jsonplaceholder.typicode.com/posts/1";
const response = await fetch(url);
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

import requests

url = "https://jsonplaceholder.typicode.com/posts/1"
headers = {}

response = requests.get(url, headers=headers, timeout=30)
response.raise_for_status()
data = response.json()
print(data)

curl https://jsonplaceholder.typicode.com/posts/1

What Can You Build?

// Generate test user data
const response = await fetch(`http://jsonplaceholder.typicode.com`);
const data = await response.json();
const user = data.results?.[0] || data.user || data;
console.log('Fake user:', user.name || user.username || user);
console.log('Email:', user.email || 'N/A');
console.log('Location:', user.location || user.address || 'N/A');

// Generate multiple test records
const records = [];
for (let i = 0; i < 5; i++) {
  const response = await fetch(`http://jsonplaceholder.typicode.com`);
  const data = await response.json();
  records.push(data);
}
console.log(`Generated ${records.length} test records`);
console.log('Sample:', records[0]);

// Use JSONPlaceholder to create realistic mock data
const response = await fetch(`http://jsonplaceholder.typicode.com`);
const mockData = await response.json();
const mock = {
  status: 'success',
  timestamp: new Date().toISOString(),
  data: mockData
};
console.log('Mock response:', JSON.stringify(mock, null, 2));

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

How This API Fails

We deliberately sent this API a broken request and recorded exactly what came back on 2026-08-10. Knowing the shape of an error before you hit it makes error handling much easier to write.

{}

Common Errors & Troubleshooting

Generated guidance based on this API's documentation, not observed by us. Treat it as a starting point and check against the provider's own error reference.