# Token Annualised Simple Issuance Rate — Weighted Result Mean

> Token Annualised Simple Issuance Rate — Weighted Result Mean is a paid API for AI agents from market.datapackvibe.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).

Computes a weighted mean of the annualised simple issuance rate across multiple token observation periods, given issued tokens, starting supply, and period lengths.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-issuance-rate-weighted-mean?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/token-annualised-simple-issuance-rate-weighted-result-mean-0189825e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Q0Rqf2ZkZTe9P84-Bl9th

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 token-annualised-simple-issuance-rate-weighted-result-mean-0189825e -d '<json body>'
```

Example prompt: Calculate the weighted mean annualised simple issuance rate for these four token periods: period 1 is 30 days with 1000 issued and 1,000,000 starting supply (weight 1), period 2 is 33 days with 1100 issued and 1,100,000 starting supply (weight 2), period 3 is 30 days with 1000 issued and 1,000,000 starting (weight 1), period 4 is 33 days with 1100 issued and 1,100,000 starting (weight 2).

## When to prefer this

Use this endpoint when you have multiple token issuance observations over different time periods and need a single weighted aggregate annualised issuance rate rather than a simple average. It is purpose-built for tokenomics analysis where recent or more significant periods should carry higher weight. Prefer it over manual calculation when working with up to 200 observation rows and needing a deterministic, reproducible result.

## Known failure modes

- Fewer than 2 rows provided — minimum of 2 observations required
- Fewer than 2 weights provided or weights array length mismatches rows array
- starting_tokens or period_days is zero or negative — exclusiveMinimum constraint violated
- issued_tokens or starting_tokens exceeds maximum numeric bounds
- More than 200 rows submitted — maxItems constraint exceeded
- Malformed JSON body or missing required fields (issued_tokens, starting_tokens, period_days)
- Payment not included or insufficient USDC — x402 payment required

## How this service works

Token annualised simple issuance rate — Weighted result mean: Weighted result mean for Token annualised simple issuance rate. 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 weighted result mean report.

## Output

A single weighted mean value representing the annualised simple issuance rate across all provided token observation rows, computed deterministically from issued tokens, starting supply, period lengths, and caller-supplied weights. No live market data or trade recommendation is included.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "issued_tokens",
     "starting_tokens",
     "period_days"
    ],
    "properties": {
     "period_days": {
      "type": "number",
      "default": 30,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     },
     "issued_tokens": {
      "type": "number",
      "default": 1000,
      "maximum": 10000000000000000,
      "minimum": 0
     },
     "starting_tokens": {
      "type": "number",
      "default": 1000000,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "period_days": 30,
     "issued_tokens": 1000,
     "starting_tokens": 1000000
    },
    {
     "period_days": 33,
     "issued_tokens": 1100,
     "starting_tokens": 1100000
    },
    {
     "period_days": 30,
     "issued_tokens": 1000,
     "starting_tokens": 1000000
    },
    {
     "period_days": 33,
     "issued_tokens": 1100,
     "starting_tokens": 1100000
    }
   ],
   "maxItems": 200,
   "minItems": 2
  },
  "weights": {
   "type": "array",
   "items": {
    "type": "number",
    "default": 1,
    "maximum": 1000000000000,
    "minimum": 0
   },
   "default": [
    1,
    2,
    1,
    2
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/token-annualised-simple-issuance-rate-weighted-result-mean-0189825e/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)