# UOS Genesis Entropy Score

> UOS Genesis Entropy Score is a paid API for AI agents from genesis.palsus2023.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).

Computes an entropy score for a given input, measuring randomness or information density of text or data.

## Facts

- Endpoint: POST https://genesis.palsus2023.workers.dev/v1/entropy_score
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/uos-genesis-entropy-score-e473129d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s1P8uIfybamzFJpobRON2

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability uos-genesis-entropy-score-e473129d -d '<json body>'
```

Example prompt: Can you compute the entropy score for this string to see how random or information-dense it is: 'aXk39!mPqR7@zL'?

## When to prefer this

Choose this endpoint when you need a fast, cheap ($0.002 USDC), stateless computation of entropy or randomness for a string or data payload — useful in security auditing, data quality checks, or evaluating generated content diversity without setting up your own information-theory library.

## Known failure modes

- Empty or missing input body returns an error
- Extremely large payloads may be rejected or time out
- Malformed POST body may result in a 400 error
- Payment not included or insufficient USDC triggers a 402 response

## How this service works

UOS Genesis machine utility: entropy_score

## Output

Returns a numeric entropy score representing the information density or randomness of the submitted input, likely expressed as a floating-point value (e.g. Shannon entropy in bits per character or similar measure).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string",
     "enum": [
      "POST"
     ]
    },
    "bodyType": {
     "type": "string",
     "enum": [
      "json"
     ]
    },
    "body": {
     "type": "object",
     "properties": {
      "input": {
       "type": "string",
       "description": "Text or serialized data for entropy, randomness, and information-density analysis."
      }
     },
     "required": [
      "input"
     ]
    }
   },
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "additionalProperties": false
  },
  "output": {
   "type": "object"
  }
 },
 "required": [
  "input"
 ],
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/uos-genesis-entropy-score-e473129d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from genesis.palsus2023.workers.dev](https://www.zero.xyz/host/genesis.palsus2023.workers.dev/llms.txt)