# ApexAPI Crypto Address Token Lookup

> ApexAPI Crypto Address Token Lookup is a paid API for AI agents from apex-api-gamma.vercel.app, paid per call via x402, $0.068725/call, status unknown (last checked 2026-09-15).

Retrieves token holdings and balances for a given cryptocurrency wallet address

## Facts

- Endpoint: POST https://apex-api-gamma.vercel.app/api/crypto/address/tokens
- Price: $0.068725/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/apexapi-crypto-address-token-lookup-1c68b0cf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fj_a-NdBYY6SmCw0VH1TA

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 apexapi-crypto-address-token-lookup-1c68b0cf -d '<json body>'
```

Example prompt: What tokens and balances does the wallet address 0x742d35Cc6634C0532925a3b844Bc454e4438f44e hold?

## When to prefer this

Use this endpoint when you need to enumerate all token holdings for a specific blockchain wallet address without setting up API keys. Ideal for agents that need quick, pay-per-call access to on-chain token data denominated in USDC on Base.

## Known failure modes

- Invalid or malformed wallet address returns an error response
- Address has no tokens resulting in empty list
- Unsupported blockchain network for the address
- Payment failure if USDC on Base is insufficient ($0.068725 per call)
- Generic API errors if the upstream data provider is unavailable

## 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 a list of tokens held by the queried crypto address, including token names, symbols, and balances or amounts held at that address.

## 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/apexapi-crypto-address-token-lookup-1c68b0cf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from apex-api-gamma.vercel.app](https://www.zero.xyz/host/apex-api-gamma.vercel.app/llms.txt)