# Otto AI — Token Top Holders

> Otto AI — Token Top Holders is a paid API for AI agents from x402.ottoai.services, paid per call via x402, $0.02/call, status unknown (last checked 2026-09-13).

Returns the top token holders, concentration metrics, and entity labels for a Base ERC-20 token contract address

## Facts

- Endpoint: GET https://x402.ottoai.services/token-top-holders
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/otto-ai-token-top-holders-a40c20d5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Fe_Sw9Zxrbwz_bEEUZp_8

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 otto-ai-token-top-holders-a40c20d5
```

Example prompt: Who are the top holders of the DEGEN token on Base (contract 0x4ed4e862860bed51a9570b96d89af5e1b0efefed)? Show me their balances, what percent of supply they hold, and whether the token is whale-concentrated.

## When to prefer this

Use this endpoint when you need detailed holder concentration analysis for a specific Base ERC-20 token, including entity identification, whale detection, and an AI-generated summary of distribution risk. Prefer this over generic blockchain explorers when you want labeled entities, structured concentration metrics, and a narrative interpretation in a single API call.

## Known failure modes

- Invalid or non-Base ERC-20 contract address returns an error
- Token with no on-chain holder data may return empty holders list
- Stale data if generatedAt timestamp is old and validUntil has passed
- Payment failure if USDC balance is insufficient for x402 $0.02 fee
- Unsupported token or chain returns no results

## How this service works

Top holders for any Base ERC-20 (via Moralis), with computed concentration (top1/5/10/20% + contract-held%) and optional whale-risk read. Curated hot set refreshed hourly; long-tail tokens write-through on first call.

## Output

Returns a ranked list of top token holders including owner addresses, USD value held, percentage of total supply, entity labels (e.g. Uniswap, Coinbase), contract vs EOA flags, and an AI-generated narrative summarizing concentration risk. Also includes aggregate stats: top-1/5/10/20 pct of supply, contract-held pct, and total supply.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "token": "0x4ed4e862860bed51a9570b96d89af5e1b0efefed"
  }
 }
}
```

## 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",
     "required": [
      "token"
     ],
     "properties": {
      "token": {
       "type": "string",
       "description": "Base ERC-20 token contract address (0x...). Common symbols also accepted as shorthand: weth, usdc, cbbtc, cbxrp, cbdoge, usol."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "status"
     ],
     "properties": {
      "data": {},
      "meta": {
       "type": "object"
      },
      "reason": {
       "type": "string",
       "description": "status=unavailable only; every >=400 is UNCHARGED"
      },
      "status": {
       "enum": [
        "success",
        "unavailable"
       ],
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": {
   "chain": "base",
   "holders": [
    {
     "label": "Uniswap V3: DEGEN 3",
     "entity": "Uniswap",
     "usdValue": 8418266.07,
     "isContract": true,
     "pctOfSupply": 5.69,
     "ownerAddress": "0x3304e22ddaa22bcdc5fca2269b418046ae7b566a",
     "balanceFormatted": "2104566516.77"
    },
    {
     "label": null,
     "entity": null,
     "usdValue": 6441248.12,
     "isContract": false,
     "pctOfSupply": 4.36,
     "ownerAddress": "0xd28cb1e0bd2f1f57c50ff85b3bcdf6cf48ddcfc9",
     "balanceFormatted": "1610312029.43"
    }
   ],
   "narrative": "Concentration is moderate: the top-10 wallets hold 27.1% of supply, led by a Uniswap V3 pool (5.7%). Contract-held supply (22.8%) is mostly DEX liquidity rather than team custody. No single EOA exceeds 4.4%.",
   "generatedAt": "2026-06-09T21:00:00.000Z",
   "totalSupply": "36965935954.18",
   "tokenAddress": "0x4ed4e862860bed51a9570b96d89af5e1b0efefed",
   "concentration": {
    "top1Pct": 5.69,
    "top5Pct": 18.42,
    "top10Pct": 27.1,
    "top20Pct": 38.55,
    "contractHeldPct": 22.8
   }
  },
  "meta": {
   "degraded": false,
   "validUntil": "",
   "generatedAt": "",
   "stalenessSec": 0
  },
  "status": "success"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/otto-ai-token-top-holders-a40c20d5/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.ottoai.services](https://www.zero.xyz/host/x402.ottoai.services/llms.txt)