Overview

Randommer is a multi-purpose random data API that generates names, phone numbers, credit card numbers, text, and more — all through a single key-authenticated endpoint. It is a great one-stop shop for filling test forms with believable fake data. Register for a free API key to get started.

Beginner Tip

Pass your API key in the X-Api-Key request header rather than as a query parameter — this is the most common source of 401 errors for new users.

Available Data

The kind of data this API exposes, based on its documentation. We could not call the endpoint to confirm the exact field names.

randomly generated data
customizable output format
Use case: Integrate random data generator data into web and mobile applications

Example Response

Illustrative shape only — we were not able to call this endpoint (it requires credentials or exposes no public sample URL), so the fields below show the kind of data this API returns rather than a recorded response.

JSON Response · Illustrative
{
  "status": "success",
  "data": {
    "result": "Data from Randommer",
    "description": "Random data generator",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

(array of strings) Most endpoints return a JSON array of generated strings, e.g. ["John Smith", "Jane Doe"]

Implementation Example

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

Request
const url = "https://randommer.io/api/Name?nameType=fullname&quantity=5";
// 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

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.

401 Unauthorized API key sent as query param instead of header
Send the key as the X-Api-Key HTTP header: -H "X-Api-Key: YOUR_API_KEY"
Unknown endpoint 404 Using a wrong path for the resource type
Check the Randommer API docs at randommer.io/randommer-api for the exact path per data type
Quota exceeded Free tier has a monthly request limit
Monitor your usage in the Randommer dashboard and upgrade if needed

Metadata Score Breakdown

Estimated from metadata — endpoint not independently tested

This score is estimated from observable metadata — HTTPS support, authentication model, declared CORS, and documentation reachability — because the API requires authentication or exposes no publicly testable endpoint. The five-signal breakdown is only shown for live-tested APIs.

Metadata estimate · endpoint not independently tested

Technical Specifications

Auth API Key
HTTPS REQUIRED
CORS YES
Category Test Data
Difficulty Intermediate
Listing details not endpoint-verified

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