# Orion Holder Concentration Risk Check

> Orion Holder Concentration Risk Check is a paid API for AI agents from orionkr.xyz, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-16).

Analyzes Base token holder concentration to detect whale dominance, top-holder sell pressure, supply centralization, and memecoin dump risk before a buy.

## Facts

- Endpoint: GET https://orionkr.xyz/v1/base/holder-concentration
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/orionkr-xyz-6e34fac6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8crfM6EDQUyqTJh2Hd0P9

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 orionkr-xyz-6e34fac6
```

Example prompt: Before I buy this Base token at 0x1234...abcd, can you run a holder concentration check on it and tell me the risk score, whether whales dominate the supply, and if there's serious dump risk from top holders?

## When to prefer this

Use this endpoint specifically when you need to evaluate holder distribution and whale concentration risk for a Base token before executing a buy or swap. Prefer this over general rug-check endpoints when holder-side sell pressure and supply centralization are your primary concern.

## Known failure modes

- Invalid or non-Base token contract address returns an error
- Token not indexed or too new returns insufficient data
- Payment failure (x402) blocks the call if USDC balance is insufficient
- Network or RPC issues cause timeout on-chain data fetches

## How this service works

Ultra-low-cost holder concentration risk check for Base tokens. Finds whale concentration, top-holder sell pressure, supply centralization, and memecoin dump risk before buys.

## Output

Returns a JSON object with a numeric riskScore (e.g. 12), a riskLevel string (LOW/MEDIUM/HIGH), a verified boolean, and a flags array listing specific concentration risk signals such as whale dominance, top-holder sell pressure, or supply centralization issues.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "chain": {
       "type": "string",
       "const": "base"
      },
      "wallet": {
       "type": "string"
      },
      "address": {
       "type": "string",
       "description": "Base wallet, token, or contract address."
      },
      "amountIn": {
       "type": "string"
      },
      "tokenAddress": {
       "type": "string",
       "description": "Optional Base token contract address."
      }
     },
     "additionalProperties": true
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [],
     "properties": {
      "success": {
       "type": "boolean"
      },
      "verdict": {
       "type": "string"
      },
      "risk_score": {
       "type": "number"
      },
      "blocking_flags": {
       "type": "array",
       "items": {
        "type": "string"
       }
      },
      "required_next_call": {
       "type": "string"
      },
      "verdict_ttl_seconds": {
       "type": "number"
      }
     },
     "additionalProperties": true
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/orionkr-xyz-6e34fac6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from orionkr.xyz](https://www.zero.xyz/host/orionkr.xyz/llms.txt)