# Silverback Token Holder Distribution & Concentration Analytics

> Silverback Token Holder Distribution & Concentration Analytics is a paid API for AI agents from x402.silverbackdefi.app, paid per call via x402, $0.01/call, status down (last checked 2026-09-15).

Analyzes token holder distribution and concentration metrics for any EVM token, returning the top holders and concentration statistics

## Facts

- Endpoint: GET https://x402.silverbackdefi.app/api/v1/holder-analytics
- Price: $0.01/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/silverback-token-holder-distribution-concentration-analytics-2c64b26f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yJIgRG78LOktcNdQnfrpN

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 silverback-token-holder-distribution-concentration-analytics-2c64b26f
```

Example prompt: Show me the top 50 holders of the token at contract address 0x833... on Base (chain ID 8453) and tell me how concentrated ownership is.

## When to prefer this

Use this endpoint when you need to assess ownership concentration risk, identify whale wallets, or understand the distribution of a token's supply across holders on EVM chains — especially Base. Prefer this over whale movement monitors when you want a snapshot of current distribution rather than real-time transaction alerts.

## Known failure modes

- Invalid or non-existent token contract address returns empty holders array or error
- Unsupported chain ID returns error or null data
- Limit value out of range may default to 20 or return validation error
- Token with no on-chain holder data returns empty result
- Payment failure (x402) blocks the request before execution

## How this service works

Token holder distribution and concentration analysis

## Output

Returns a JSON object with a 'data' field containing the token address, an array of top holders (wallet addresses and balances), and a concentration object with metrics like Gini coefficient or top-N percentage ownership; also includes a 'success' boolean.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "number",
   "description": "Number of top holders (default: 20)"
  },
  "token": {
   "type": "string",
   "description": "Token contract address"
  },
  "chainId": {
   "type": "number",
   "description": "Chain ID (default: 8453 Base)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "token": "0x833...",
   "holders": [],
   "concentration": {}
  },
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/silverback-token-holder-distribution-concentration-analytics-2c64b26f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.silverbackdefi.app](https://www.zero.xyz/host/x402.silverbackdefi.app/llms.txt)