# Largest Token Holder Share — Adjacent Period Changes

> Largest Token Holder Share — Adjacent Period Changes 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).

Calculates period-over-period changes in the largest reported token holder's share of circulating supply across a series of observations.

## Facts

- Endpoint: POST https://market.datapackvibe.com/x402/assistant-bx-token-largest-holder-period-changes?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/largest-token-holder-share-adjacent-period-changes-e34cb335
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_7fuJUlVSdx69iUctctU28

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 largest-token-holder-share-adjacent-period-changes-e34cb335 -d '<json body>'
```

Example prompt: Can you compute the adjacent period changes in the largest token holder's share for these four snapshots: holder had 100,000 tokens out of 1,000,000 circulating, then 110,000 out of 1,100,000, then 100,000 out of 1,000,000, then 110,000 out of 1,100,000?

## When to prefer this

Choose this endpoint when you need a deterministic, cheap ($0.01 USDC) calculation of how the largest token holder's share has shifted between consecutive observation periods. It is ideal for batch analysis of pre-collected snapshot data rather than live on-chain scanning. Prefer it over general analytics platforms when you need a structured, comparable period-change report on concentration metrics from your own supplied data.

## Known failure modes

- circulating_tokens must be greater than 0 (exclusiveMinimum enforced) — zero value causes validation error
- fewer than 2 rows provided — minimum 2 observations required for adjacent comparison
- more than 200 rows submitted — exceeds maxItems limit
- holder_tokens or circulating_tokens exceeds maximum value of 1e16 — rejected
- malformed row object or extra properties rejected due to additionalProperties:false
- payment failure or insufficient USDC balance blocks the request

## How this service works

Largest reported token holder share — Adjacent period changes: Adjacent period changes for Largest reported token holder share. 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 adjacent period changes report.

## Output

A bounded report showing the calculated change in the largest token holder's share percentage between each pair of adjacent observation periods, derived deterministically from the supplied holder_tokens and circulating_tokens values for each row. Output reflects a threshold-based verdict, not a live market scan or trade recommendation.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "rows": {
   "type": "array",
   "items": {
    "type": "object",
    "required": [
     "holder_tokens",
     "circulating_tokens"
    ],
    "properties": {
     "holder_tokens": {
      "type": "number",
      "default": 100000,
      "maximum": 10000000000000000,
      "minimum": 0
     },
     "circulating_tokens": {
      "type": "number",
      "default": 1000000,
      "maximum": 10000000000000000,
      "minimum": 0,
      "exclusiveMinimum": 0
     }
    },
    "additionalProperties": false
   },
   "default": [
    {
     "holder_tokens": 100000,
     "circulating_tokens": 1000000
    },
    {
     "holder_tokens": 110000.00000000001,
     "circulating_tokens": 1100000
    },
    {
     "holder_tokens": 100000,
     "circulating_tokens": 1000000
    },
    {
     "holder_tokens": 110000.00000000001,
     "circulating_tokens": 1100000
    }
   ],
   "maxItems": 200,
   "minItems": 2
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/largest-token-holder-share-adjacent-period-changes-e34cb335/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)