# Burned Token Fraction Before-and-After Comparison

> Burned Token Fraction Before-and-After Comparison is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Computes and compares the burned token fraction (burned/issued) for two token supply snapshots, returning a before-and-after delta report.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-burned-supply-compare?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/burned-token-fraction-before-and-after-comparison-f6f3abbf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oNRQNd378bbIvJXGr0qL1

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 burned-token-fraction-before-and-after-comparison-f6f3abbf -d '<json body>'
```

Example prompt: Compare the burned token fraction before and after this burn event: before we had 100,000 burned out of 2,000,000 issued, and after we have 110,000 burned out of 2,200,000 issued — show me how the ratio changed.

## When to prefer this

Use this endpoint when you need a quick, cheap ($0.01 USDC), deterministic before-and-after comparison of burned token supply fractions given two explicit snapshots of burned and issued token counts. Prefer it over custom calculation when you want a structured report rather than a raw number, and when you already have both snapshot values on hand. Not suitable for live on-chain scanning, safety analysis, or trade recommendations.

## Known failure modes

- issued_tokens is zero or missing (schema requires exclusiveMinimum > 0)
- burned_tokens exceeds issued_tokens in either snapshot (logically invalid but may not be blocked by schema)
- missing required fields in before or after objects
- values outside the allowed range of 0–10^16
- payment not completed via x402 protocol resulting in 402 response

## How this service works

Reported burned token fraction — Before and after comparison: Before and after comparison for Reported burned token fraction. Supplied token observations only. Deterministic calculation or caller-threshold verdict, not a live scan, safety proof or trade recommendation. Specialised preset in a shared 50-profile, 20-operation engine. 0.01 USDC includes one bounded before and after comparison report.

## Output

Returns a structured report containing the burned token fraction for the 'before' state, the burned token fraction for the 'after' state, and the computed difference/delta between them, based solely on the supplied token counts using deterministic calculation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "after": {
   "type": "object",
   "default": {
    "burned_tokens": 110000.00000000001,
    "issued_tokens": 2200000
   },
   "required": [
    "burned_tokens",
    "issued_tokens"
   ],
   "properties": {
    "burned_tokens": {
     "type": "number",
     "default": 100000,
     "maximum": 10000000000000000,
     "minimum": 0
    },
    "issued_tokens": {
     "type": "number",
     "default": 2000000,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  },
  "before": {
   "type": "object",
   "default": {
    "burned_tokens": 100000,
    "issued_tokens": 2000000
   },
   "required": [
    "burned_tokens",
    "issued_tokens"
   ],
   "properties": {
    "burned_tokens": {
     "type": "number",
     "default": 100000,
     "maximum": 10000000000000000,
     "minimum": 0
    },
    "issued_tokens": {
     "type": "number",
     "default": 2000000,
     "maximum": 10000000000000000,
     "minimum": 0,
     "exclusiveMinimum": 0
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/burned-token-fraction-before-and-after-comparison-f6f3abbf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market.datapackvibe.com](https://www.zero.xyz/host/market.datapackvibe.com/llms.txt)