# Base Chain ERC20 Token Holder Distribution & Concentration Analyzer

> Base Chain ERC20 Token Holder Distribution & Concentration Analyzer is a paid API for AI agents from proxy.suverse.io, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Returns top token holders, balances, supply percentages, concentration metrics, and whale flags for any ERC20 contract on Base chain

## Facts

- Endpoint: POST https://proxy.suverse.io/v1/data/base-token-holders
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/proxy-suverse-io-70bc57f5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8LTieXbQvp8MoPq_FxfeW

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 proxy-suverse-io-70bc57f5 -d '<json body>'
```

Example prompt: Can you pull the top holder distribution for this Base chain token at contract 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 — I want to see the concentration ratio, whale flags, and unique holder count to assess pump-and-dump risk.

## When to prefer this

Use this endpoint when you need on-chain holder distribution data specifically for ERC20 tokens on the Base chain, especially for risk assessment workflows involving supply concentration, whale detection, or pump-and-dump screening. Prefer this over generic blockchain explorers when you need structured concentration metrics and whale flags in a single API response.

## Known failure modes

- Invalid or non-ERC20 contract address returns an error
- Contract not deployed on Base chain returns not found error
- Rate limiting or payment failure via x402 protocol returns 402 status
- Token with no on-chain holder data returns empty results
- Network congestion may cause timeout on large holder datasets

## How this service works

Top ERC20 token holders on Base mainnet with concentration metrics. Returns holder addresses, balance, % of supply, holder count, top10 concentration, whale flags >1%. AI agent token risk scan, whale tracking, distribution analysis, pump-and-dump detection, Base L2 token holders API.

## Output

Returns a list of top token holder addresses with their balances and percentage of total supply, along with aggregate metrics including unique holder count, top-10 concentration ratio, and boolean whale flags for any wallet holding more than 1% of supply.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/proxy-suverse-io-70bc57f5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from proxy.suverse.io](https://www.zero.xyz/host/proxy.suverse.io/llms.txt)