Keen IO API

Machine Learning / API Key Intermediate HTTPS
Varies by plan (check documentation)

Overview

Keen IO is a data analytics API that lets you record custom events and then query and visualize that data without setting up your own database or analytics infrastructure. You send JSON events like user actions or system metrics to Keen IO, and it stores and makes them queryable in real time. It is useful for product analytics, IoT telemetry, or any scenario where you need to track and analyze custom events.

💡

Beginner Tip

Start by sending a few test events using the write key before building queries—this confirms your data is arriving correctly and helps you understand the event structure. The Keen IO Explorer in the dashboard lets you build queries visually before writing any code.

Available Data

Use case: Integrate data analytics data into web and mobile applications
Keen IO data via REST API
JSON-formatted response data
Requires API key authentication

Example Response

JSON Response
{
  "status": "success",
  "data": {
    "result": "Data from Keen IO",
    "description": "Data Analytics",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

created True if the event was successfully recorded to the specified collection.
result For query responses, the computed result value (e.g., count, sum, or average).
value For grouped or interval queries, an array of result objects broken down by the specified group or time bucket.
timeframe The time range covered by the query result, with start and end timestamps.

Implementation Example

const url = "https://keen.io/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "X-API-Key": "YOUR_API_KEY"
  }
});
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.

Common Errors & Troubleshooting

401 Unauthorized Using the wrong key type—read key for write operations or vice versa
Use the Write Key for recording events and the Read Key for querying. Find both in your Keen IO project settings.
400 Bad Request: Invalid event body Request body is not valid JSON or contains reserved field names starting with 'keen.'
Validate your JSON before sending and avoid field names that start with 'keen.' as they are reserved by the platform.
Event collection not appearing in dashboard Events were sent but the collection name has a typo or the project ID is wrong
Double-check the project ID in the URL and the collection name in the path; Keen IO creates collections automatically on first write.

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 10/20
🔒 Security 15/15
🛠 Developer XP 12/20
✓ Reliability 10/15

Partially tested on Apr 5, 2026

Technical Specifications

Auth API Key
HTTPS REQUIRED
CORS UNKNOWN
Category Machine Learning
Difficulty Intermediate
Verified: 2026-04-04

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