True RNG API — Hardware Entropy Random Number Generator using RDRAND, /dev/hwrng, CPU thermal noise, and timing jitter mixed with SHA-256. NIST SP 800-22: 184/188 tests passed (100 bitstreams x 1M bit). SP 800-90B min-entropy: 0.9912 bits/bit (99.12%). FIPS 140-2: 40/40 passed. All 15 NIST statistical tests passed including Frequency, Block Frequency, Runs, Longest Run, Rank, DFT, Universal, Approximate Entropy, Serial, Linear Complexity, Cumulative Sums, Random Excursions, and Random Excursions Variant.
{
"value": 63,
"source": "RDRAND + /dev/hwrng + CPU thermal + timing"
}
curl --location --request GET 'https://zylalabs.com/api/13453/true+random+generator+api+v2/29445/random+integer' --header 'Authorization: Bearer YOUR_API_KEY'
After signing up, every developer is assigned a personal API access key, a unique combination of letters and digits provided to access to our API endpoint. To authenticate with the True Random Generator API v2 simply include your bearer token in the Authorization header.
| Header | Description |
|---|---|
Authorization
|
Required
Should be Bearer access_key. See "Your API Access Key" above when you are subscribed.
|
No long-term commitment. Upgrade, downgrade, or cancel anytime. Free Trial includes up to 50 requests.
Each endpoint returns specific types of random data: integers, bytes, UUIDs, passwords, entropy status, and health check status. For example, the Random Integer endpoint returns a single integer, while the Random Bytes endpoint returns an array of bytes and a hex string.
Key fields vary by endpoint. For Random Integer, it includes "value" and "source." Random Bytes returns "bytes," "hex," and "source." The Random Password endpoint includes "password," "length," and "entropy_bits," while Entropy Status provides "pool_size," "capacity," and "sources."
Parameters vary by endpoint. The Random Password endpoint allows customization of length and character sets. The Random Integer endpoint accepts a specified range. Other endpoints do not require parameters, returning data based on the API's internal entropy sources.
Response data is structured in JSON format. Each response contains relevant fields specific to the endpoint. For example, the Random UUID endpoint returns a "uuid" field, while the Entropy Status endpoint provides multiple fields detailing the entropy pool's status.
The API utilizes hardware entropy sources, including RDRAND, /dev/hwrng, CPU thermal noise, and timing jitter. These sources ensure high-quality randomness, validated by passing NIST statistical tests and FIPS 140-2 compliance.
Typical use cases include generating secure passwords, unique identifiers (UUIDs), and random numbers for cryptographic applications, gaming, simulations, and any scenario requiring high-quality randomness.
Users can directly use the returned data for various applications. For instance, the Random Password can be used for user authentication, while Random UUIDs can serve as unique keys in databases. Understanding the structure helps in parsing and integrating the data into applications.
Data accuracy is maintained through rigorous testing, including passing all 15 NIST statistical tests and FIPS 140-2 compliance. The API continuously monitors entropy sources to ensure reliable and high-quality random data generation.
To obtain your API key, first sign in to your account and navigate to the API you want to use. From the API's Pricing section, choose a plan and complete the subscription process. Once subscribed, return to the API page and you will see your API Access Key displayed at the top of the documentation page. You can use this key to authenticate your requests.
You can’t switch APIs during the free trial. If you subscribe to a different API, your trial will end and the new subscription will start as a paid plan.
The free trial lasts for 7 days and allows you to make up to 50 API requests.
No, the free trial is available only once, so we recommend using it on the API that interests you the most. Most of our APIs offer a free trial, but some may not include this option.
Yes. If the API offers a free trial, you will see a "Free 7-Day Trial" option in its Pricing section. The trial lasts for 7 days and allows up to 50 API requests, enabling you to evaluate the API before subscribing to a paid plan.
Zyla API Hub is like a big store for APIs, where you can find thousands of them all in one place. We also offer dedicated support and real-time monitoring of all APIs. Once you sign up, you can pick and choose which APIs you want to use. Just remember, each API needs its own subscription. But if you subscribe to multiple ones, you'll use the same key for all of them, making things easier for you.
You can monitor your API usage through the response headers included with every request:
x-zyla-api-calls-monthly-used: Shows the total number of API requests you have used during the current billing period.
x-zyla-api-calls-monthly-remaining: Shows the number of API requests you have remaining for the current billing period.
Yes, you can cancel your subscription at any time. Simply go to the Pricing section of the API you're subscribed to and click the "Unsubscribe" button.
Please note that upgrades, downgrades, and cancellations take effect immediately. Once your subscription is canceled, access to the service will end immediately, regardless of any remaining API calls in your quota.
Please have a look at our Refund Policy: https://zylalabs.com/terms#refund