Advice Slip API

Beginner's Pick Personality / No Auth Required Beginner HTTPS
Free to Use
64 C
Measured Score 0 50 100 Speed 1/30 Consistency 20/20 Security 20/20 Browser access 15/15 Transparency 8/15 TESTED 2026-08-10

Overview

Advice Slip is a free, no-auth API that returns a random piece of advice with each request. It is perfect for beginner projects like daily advice apps or browser extensions. No API key is needed — just call the endpoint and get a JSON response instantly.

Beginner Tip

Use the /advice endpoint for a random slip or /advice/{id} to fetch a specific one. The response is tiny and consistent, making this ideal for learning how to parse JSON APIs.

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://api.adviceslip.com/advice
Result
HTTP 200 · application/json · 133 bytes · compressed
Response time
1561 ms (median of 3) · fastest 1493 ms
Transport
TLSv1.3 · TLS_AES_256_GCM_SHA384 · certificate issued by Let's Encrypt
Browser CORS
Allowed — Access-Control-Allow-Origin: *
Served by
Apache
Recorded
2026-08-10

Fields Returned

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

Field Type Value received
slip object {2 fields}

Captured Response

Captured from a real request to https://api.adviceslip.com/advice on 2026-08-10. Long arrays and nested objects are truncated to keep the shape readable.

JSON Response · Captured
{
  "slip": {
    "id": 121,
    "advice": "If you think your headphones are dying, check the socket for fluff with a straightened paperclip."
  }
}

Implementation Example

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

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

What Can You Build?

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.

HTTP 500 Requesting a path that does not exist application/json
{
  "message": "Slim Application Error"
}

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.

Mixed Content warning in browser The API base URL uses HTTP, which browsers block on HTTPS pages.
Use the HTTPS version of the endpoint: https://api.adviceslip.com/advice.
No advice returned / empty slip The requested advice ID does not exist.
Omit the ID parameter to always get a valid random slip, or use IDs within the documented range (1-224).
CORS error in browser Some older browsers may block the cross-origin request.
The API supports CORS, so ensure you are requesting via HTTPS and not a file:// URL.

Measured Score Breakdown

Live HTTP request to the API endpoint

Speed 1/30
Consistency 20/20
Security 20/20
Browser access 15/15
Transparency 8/15
Endpoint Response Time 1561ms

Fully tested on Aug 10, 2026

Technical Specifications

Auth No Auth
HTTPS REQUIRED
CORS UNKNOWN
Category Personality
Difficulty Beginner
Endpoint last called: 2026-08-10

Related Tags

Similar APIs

View All →