# Token Holder Concentration Analyzer (Base Chain)

> Token Holder Concentration Analyzer (Base Chain) is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns token holder concentration metrics on Base chain including top holder percentages, top-10 share, total holder count, and contract vs wallet classification for rug risk and distribution analysis.

## Facts

- Endpoint: GET https://api.x402node.dev/chain/token-holders
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-x402node-dev-2529cd83
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8hNe5HNGmov_B8UKsYl9J

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 api-x402node-dev-2529cd83
```

Example prompt: Can you check the holder concentration for the token at 0xabc...123 on Base — I want to know what percentage the top 10 holders own, how many total holders there are, and whether those top holders are real wallets or contracts like pools?

## When to prefer this

Use this endpoint when you need on-chain holder concentration data specifically for Base chain tokens, particularly for rug risk analysis, whale detection, or evaluating how decentralized a token's supply is. Prefer this over generic block explorers when you need structured JSON output with contract vs wallet classification built in.

## Known failure modes

- Invalid or unrecognized token address returns an error
- Token not deployed on Base chain returns not-found error
- Very new tokens with minimal on-chain data may return incomplete results
- Payment not fulfilled results in 402 Payment Required response
- Rate limits or node availability issues may cause timeout

## How this service works

Token holder concentration on Base: top holder percentages, top 10 share, holder count, and which top holders are contracts like pools or bridges versus real wallets. Useful for rug risk and distribution analysis. Search terms: token holders, concentration, top holders, whale analysis, supply distribution, rug risk. Accepts payment on Base or Solana — either network works.

## Output

Returns top holder percentages (individual and cumulative top-10 share), total holder count, and a breakdown classifying each top holder as a contract (e.g. liquidity pool, bridge) or a real wallet — enabling rug risk and supply distribution assessment.

## Example request

```json
{
 "chain": "base",
 "token": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "top": {
       "type": "string",
       "description": "Top (optional)"
      },
      "token": {
       "type": "string",
       "description": "ERC20 contract address (optional)"
      },
      "address": {
       "type": "string",
       "description": "EVM/chain address (optional)"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-x402node-dev-2529cd83/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)