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OmniAPI Crypto Address Balance Lookup
x402
OmniAPI Crypto Address Balance Lookup is a paid API for AI agents from omni-api-cyan.vercel.app, paid per call via x402, $0.149836/call, status unknown (last checked 2026-09-15).
Returns the cryptocurrency balance of a given blockchain address across supported chains
Price / call$0.149836
Success—
StatusUnknown
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 the on-chain balance of the queried cryptocurrency address, including token amounts and potentially chain-specific breakdowns. Response is a JSON object with balance data for the address across the supported network(s).
Example use cases
DeFi portfolio monitoring
“Can you check the on-chain balance for wallet address 0xAbCd...1234 and tell me how much crypto it currently holds?”
Fraud or due-diligence address check
“I need to verify if this blockchain address 0x9F8e...3D2A has any funds before I proceed — can you look up its balance?”
Automated treasury reconciliation
“Fetch the current balance for our treasury address 0xDeFi...CAFE so I can reconcile it against our internal records.”
Technical details
Endpoint
POSThttps://omni-api-cyan.vercel.app/api/crypto/address/balanceWhen to prefer
Use this endpoint when you need a quick, pay-per-call balance lookup for a specific blockchain address without setting up your own RPC node infrastructure. It is well-suited for agents needing multi-chain coverage in a single API call, especially when cost-per-query billing via USDC x402 is preferred over a monthly subscription model.
Side effects
- Invalid or malformed address returns an error response
- Unsupported chain or token type may return empty or null balance
- Network congestion or RPC node issues may cause timeouts
- Missing required 'query' field results in a 400-style validation error
- Address with no transaction history may return zero balance rather than an error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | string | Input data for the endpoint |
| queryrequired | string | Search query or input text |
| params | object | Additional parameters |
Output
Schema · Response
{
"type": "object",
"description": "API response data"
}Tags
x402
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