# Crest Wallet Intelligence — EVM Wallet Behavioral Profiler

> Crest Wallet Intelligence — EVM Wallet Behavioral Profiler is a paid API for AI agents from data.crestsystems.ai, paid per call via x402, $0.9/call, status down (last checked 2026-09-15).

Returns a deep behavioral profile of any EVM wallet's x402 agent-commerce activity on Base mainnet, including whale score, behavioral cluster, payment history, top services, risk assessment, and temporal patterns.

## Facts

- Endpoint: GET https://data.crestsystems.ai/data/wallet/:address
- Price: $0.9/call
- Payment: x402
- Status: down
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/data-crestsystems-ai-5fbf5895
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DA2oevV-umjl8IOPS-vRJ

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 data-crestsystems-ai-5fbf5895
```

Example prompt: Give me a full behavioral profile of wallet 0x4a8b3f2c1d9e7f0a6b5c4d3e2f1a0b9c8d7e6f5a on Base mainnet — I want to know its whale score, what services it's been paying for, and whether it's a high-risk account.

## When to prefer this

Use this endpoint when you need a rich, multi-dimensional behavioral profile of a specific EVM wallet's agent-commerce activity on Base mainnet, especially for risk assessment, whale identification, or understanding x402 payment patterns. Prefer this over generic on-chain data tools when you need pre-computed behavioral clusters and composite scoring across 18,000+ wallets rather than raw transaction data.

## Known failure modes

- Wallet address not found in dataset — returns empty profile or 404 if wallet has no x402 activity
- Invalid address format — returns 400 bad request for malformed hex addresses
- Wallet has insufficient activity — may return low-confidence scores or sparse profile
- Rate limiting or payment failure — returns 402 if USDC payment not completed
- Network or upstream data unavailability — returns 503 or partial data

## How this service works

Witnos wallet intelligence: full scored profile for any Base or EVM wallet, the deep read behind a verify. Whale score (0-1 composite of spend velocity, service diversity, premium ratio, repeat rate), behavioral cluster, x402 spend graph, counterparty check, payment history, top services, risk assessment and temporal patterns. A wallet tracker and profiler built from 18,000+ profiled wallets.

## Output

A structured profile including a composite whale score (0–1) derived from spend velocity, service diversity, premium ratio, and repeat rate; a behavioral cluster label; itemized payment history; list of top services used; risk assessment; and temporal activity patterns — drawn from Crest's proprietary database of 18,000+ profiled wallets on Base mainnet.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "EVM wallet address to profile (0x + 40 hex characters). Any Base mainnet wallet with x402 payment history."
      }
     }
    }
   },
   "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/data-crestsystems-ai-5fbf5895/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from data.crestsystems.ai](https://www.zero.xyz/host/data.crestsystems.ai/llms.txt)