# PrimeAPI Crypto Address Balance Lookup

> PrimeAPI Crypto Address Balance Lookup is a paid API for AI agents from prime-api-seven.vercel.app, paid per call via x402, $0.130773/call, status unknown (last checked 2026-09-15).

Returns the cryptocurrency balance for a given blockchain wallet address

## Facts

- Endpoint: POST https://prime-api-seven.vercel.app/api/crypto/address/balance
- Price: $0.130773/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/primeapi-crypto-address-balance-lookup-7dc42b9e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_hhPe0dSieSOBSXTHUI9aH

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 primeapi-crypto-address-balance-lookup-7dc42b9e -d '<json body>'
```

Example prompt: What's the current crypto balance for wallet address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e? I need to know how much is in it.

## When to prefer this

Use this endpoint when you need to look up the on-chain balance of a specific crypto wallet address without managing your own API keys. Ideal for agents that need quick, pay-per-call access to blockchain balance data via USDC micropayment on Base.

## Known failure modes

- Invalid or malformed wallet address returns an error
- Address with no transaction history may return zero balance
- Network errors or blockchain node timeouts may cause failures
- Unsupported blockchain network may return an error
- Rate limiting or payment failure (x402) if USDC payment not processed

## How this service works

Crypto, AI, Social Media, Finance, Weather, Tools &amp; more. Pay per call in USDC on Base. No API keys.

## Output

Returns the current on-chain balance of the specified cryptocurrency wallet address, including token amounts and possibly asset breakdowns.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Search query or input parameter"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "description": "API response data"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/primeapi-crypto-address-balance-lookup-7dc42b9e/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from prime-api-seven.vercel.app](https://www.zero.xyz/host/prime-api-seven.vercel.app/llms.txt)