NIST Randomness Beacon (Version 2.0 Beta) – work in progress

https://csrc.nist.gov/Projects/interoperable-randomness-beacons/beacon-20

localRandomValue is “A random value represented as a 64-byte (512 bits) hex string.”

ubuntu@LAPTOP-JBell:~$ curl -s https://beacon.nist.gov/beacon/2.0/pulse/last | jq ".pulse.localRandomValue"
"BB766DDA60D30293E1355CE902F9D91F5BEA362E368EB4578FCB4934008ED4CCEB3A710D55E319BEFB553A91A2B6BD3A9CC1C0D564103A608245D281FCF09BDC"

CURBy - CU Randomness Beacon

https://random.colorado.edu/

ubuntu@LAPTOP-JBell:~$ curl https://random.colorado.edu/api/curbyq/round/latest/data > out
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 8792k  100 8792k    0     0  7791k      0  0:00:01  0:00:01 --:--:-- 7794k
ubuntu@LAPTOP-JBell:~$ head -c 8 out
eJyMnYty

Cisco Outshift Quantum Random Number Generator (QRNG)

https://outshift.cisco.com/quantum-random-number-generator

curl --request POST \
  --url https://api.qrng.outshift.com/api/v1/random_numbers \
  --header 'Content-Type: application/json'  \
  --header "x-id-api-key: $API_KEY" \
  --data '{
        "encoding": "raw",
        "format": "all",
        "bits_per_block": 8,
        "number_of_blocks": 1
    }'

{"encoding":"raw","random_numbers":[{"binary":"11110001","octal":"361","decimal":"241","hexadecimal":"f1"}]}

Australian National University Quantum Numbers (AQN)

https://quantumnumbers.anu.edu.au/

ubuntu@LAPTOP-JBell:~$ API_KEY="<API Key>"
ubuntu@LAPTOP-JBell:~$ API_URL="https://api.quantumnumbers.anu.edu.au"

curl -X GET -H "x-api-key:${API_KEY}" "${API_URL}?length=5&type=hex8&size=2"

{"success": true, "type": "hex8", "length": "5", "data": ["51f7", "5879", "ee84", "37f0", "0593"]}

drand project

https://docs.drand.love/dev-guide/developer/http-api

ubuntu@LAPTOP-JBell:~$ curl -s api.drand.sh/public/latest | jq ".randomness"
"47fb67550165e1da717421c995ea11f8e51e38d0e33459ee3a79cb97a64f0703"

LfD Quantum Random Number Generator

https://www.lfdr.de/QRNG/

On traditional computing systems, random numbers are often generated with pseudo random number generators (PRNGs). Quantum random numbers generators use properties of quantum physics to generate a random source of high entropy. Our laboratory offers access to a QRNG source via a simple HTTP-API. The QRNG service is backed by a ID Quantique QRNG PCIe.

curl "https://lfdr.de/qrng_api/qrng?length=10&format=HEX"

{"length":10,"qrn":"7900ee5cae1446aa08ae"}