# OmniAPI Crypto Address Token Holdings Lookup

> OmniAPI Crypto Address Token Holdings Lookup is a paid API for AI agents from omni-api-cyan.vercel.app, paid per call via x402, $0.068504/call, status unknown (last checked 2026-09-15).

Retrieves the token holdings and balances associated with a given blockchain wallet address across multiple chains.

## Facts

- Endpoint: POST https://omni-api-cyan.vercel.app/api/crypto/address/tokens
- Price: $0.068504/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/omniapi-crypto-address-token-holdings-lookup-653a0414
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_N5ecpmVe8tRzq409B9Bjr

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 omniapi-crypto-address-token-holdings-lookup-653a0414 -d '<json body>'
```

Example prompt: Can you look up all the tokens held by the wallet address 0x742d35Cc6634C0532925a3b8D4C9D5e3bFe4b9F2 and show me what it owns?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call token holdings lookup for a specific blockchain address without setting up a dedicated node or indexer. Ideal for multi-chain portfolio checks, due diligence flows, or airdrop eligibility verification where spinning up a dedicated blockchain data service is overkill.

## Known failure modes

- Invalid or malformed wallet address returns an error or empty result
- Unsupported chain not covered by OmniAPI returns no data
- Rate limiting or payment failure (x402) blocks the request
- Address with no token holdings returns an empty token list
- Network timeout from the underlying blockchain data provider

## How this service works

444 endpoints across 9+ chains. Crypto, AI, Social, Finance, Weather, Tools. Pay per call in USDC via x402 with 4 facilitators: Dexter, Meridian, FluxA, GoPlausible.

## Output

Returns a structured list of tokens held by the queried wallet address, including token names, symbols, contract addresses, and balances across supported chains.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "query"
 ],
 "properties": {
  "input": {
   "type": "string",
   "description": "Input data for the endpoint"
  },
  "query": {
   "type": "string",
   "description": "Search query or input text"
  },
  "params": {
   "type": "object",
   "description": "Additional parameters"
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/omniapi-crypto-address-token-holdings-lookup-653a0414/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from omni-api-cyan.vercel.app](https://www.zero.xyz/host/omni-api-cyan.vercel.app/llms.txt)