# NIGHTSHIFT Wallet Check

> NIGHTSHIFT Wallet Check is a paid API for AI agents from getnightshift.tech, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-27).

Looks up on-chain details for a wallet or contract address on Ethereum or Base, returning balances, nonce, labels, proxy status, and source verification.

## Facts

- Endpoint: GET https://getnightshift.tech/api/v1/wallet-check?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/nightshift-wallet-check-cc9e9365
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VfI0_ZCxpGouw0HQVkwMF

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 nightshift-wallet-check-cc9e9365
```

Example prompt: Can you check the on-chain details for wallet address 0x833589fcd6edb6e08f4c7c32d4f71b54bda02913 on Base — I want to know the ETH and USDC balance, whether it's a contract or EOA, if it's a proxy, and whether the source is verified?

## When to prefer this

Use this endpoint when you need a quick, multi-dimensional on-chain profile of a wallet or contract address on Ethereum or Base mainnet — especially when you want ETH and USDC balances, proxy detection, source verification, and label enrichment in a single call. Prefer it over raw RPC calls when you need aggregated intelligence rather than a single balance query.

## Known failure modes

- Invalid or malformed wallet address returns an error or null fields
- Unsupported chain value (not 'ethereum' or 'base') causes validation failure
- Some data sources may be unavailable, listed in the 'unavailable' array — absence from these sources is not evidence of safety
- Rate limiting or payment failure returns HTTP 402
- Network timeouts may result in partial data with populated 'unavailable' array

## How this service works

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## Output

Returns a JSON object with the address, its kind (contract or EOA), current ETH and USDC balances as strings, nonce, proxy details, source name and verification status, first-seen timestamp, any known labels, and a list of data sources that were unavailable during the lookup.

## 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": [
      "chain",
      "address"
     ],
     "properties": {
      "chain": {
       "enum": [
        "ethereum",
        "base"
       ],
       "type": "string",
       "description": "Mainnet chain"
      },
      "address": {
       "type": "string",
       "description": "Wallet or contract address"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "service",
      "unavailable",
      "address",
      "kind",
      "source",
      "proxy",
      "ethBalance",
      "usdcBalance",
      "nonce",
      "firstSeen",
      "labels"
     ],
     "properties": {
      "kind": {
       "type": [
        "string",
        "null"
       ]
      },
      "nonce": {
       "type": [
        "number",
        "null"
       ]
      },
      "proxy": {
       "type": [
        "object",
        "null"
       ]
      },
      "labels": {
       "type": "array"
      },
      "source": {
       "type": [
        "object",
        "null"
       ]
      },
      "address": {
       "type": [
        "string",
        "null"
       ]
      },
      "service": {
       "type": "string"
      },
      "firstSeen": {
       "type": [
        "object",
        "null"
       ]
      },
      "ethBalance": {
       "type": [
        "string",
        "null"
       ]
      },
      "unavailable": {
       "type": "array",
       "items": {
        "type": "string"
       },
       "description": "Sources or checks that could not answer; never evidence of safety."
      },
      "usdcBalance": {
       "type": [
        "string",
        "null"
       ]
      }
     }
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "kind": "contract",
  "nonce": 1,
  "proxy": {
   "proxy": true
  },
  "labels": [],
  "source": {
   "name": "FiatTokenProxy",
   "verified": true
  },
  "address": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
  "service": "wallet-check",
  "firstSeen": null,
  "ethBalance": "0",
  "unavailable": [],
  "usdcBalance": "0"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nightshift-wallet-check-cc9e9365/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from getnightshift.tech](https://www.zero.xyz/host/getnightshift.tech/llms.txt)