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OmniAPI Crypto Contract Read
x402
OmniAPI Crypto Contract Read is a paid API for AI agents from omni-api-cyan.vercel.app, paid per call via x402, $0.039079/call, status unknown (last checked 2026-09-15).
Reads data from a smart contract on one of 9+ supported blockchains via a pay-per-call USDC API
Price / call$0.039079
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 result of a smart contract read call — typically the decoded return value(s) of the specified contract function, such as a balance, address, boolean flag, or other on-chain state variable, wrapped in a JSON response object.
Example use cases
DeFi staking balance check
“Look up the staked token balance for wallet 0xABC123... in the Aave lending pool contract on Ethereum — I need the current deposited amount.”
NFT ownership verification
“Check the ownerOf function on the Bored Ape Yacht Club NFT contract at 0xBC4CA0EdA7647A8aB7C2061c2E118A18a936f13D for token ID 1234 — who currently owns it?”
On-chain price oracle query
“Read the latest ETH/USD price from Chainlink's price feed contract at 0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419 on Ethereum mainnet.”
Technical details
Endpoint
POSThttps://omni-api-cyan.vercel.app/api/crypto/contract/readWhen to prefer
Choose this endpoint when you need to perform a read-only (view/pure) call to a smart contract across any of 9+ supported chains and want to pay per call in USDC via the x402 protocol without managing your own RPC node or blockchain infrastructure. It is especially useful for agents that need ad-hoc contract reads across multiple chains without setting up chain-specific SDKs.
Side effects
- Invalid or non-existent contract address returns an error or empty result
- Unsupported chain causes a routing failure
- Malformed query string or incorrect ABI function name returns a parse error
- Payment failure via x402 (insufficient USDC) blocks the request
- Contract function requires arguments not provided, resulting in a revert or bad data
- Rate limiting or Vercel cold-start latency may cause timeouts
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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