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AgenticFi Block Height Lookup
x402
AgenticFi Block Height Lookup is a paid API for AI agents from defi-api.agenticfi.wtf, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Returns the current block height for a specified blockchain network (e.g. Ethereum, Base, Arbitrum)
Price / call$0.001
Success—
StatusUnknown
How this service works
Latest block number for a chain
Output
Returns the current block height (a numeric block index) for the specified blockchain network, indicating how many blocks have been mined since genesis on that chain.
Example use cases
Monitor swap execution timing across chains
“Before executing my next batch of swaps, check the current block heights on Ethereum, Base, and Arbitrum so I can timestamp each transaction properly.”
Verify on-chain state synchronization checkpoint
“I need to make sure my agent is synced with the latest block on Base before reading any wallet balances or token prices from the chain.”
Anchor DeFi workflow to current block state
“What's the block height on Ethereum right now? I want to use that as a reference point before submitting any pending transactions.”
Technical details
Endpoint
GEThttps://defi-api.agenticfi.wtf/api/chain/block-height/%7Bchain%7DWhen to prefer
Use this endpoint when an AI agent needs to anchor on-chain state, verify timing of transactions, or synchronize workflows to a specific block number on EVM-compatible chains like Ethereum, Base, or Arbitrum. Ideal for DeFi automation that requires knowing the current chain height before executing swaps or reading on-chain data.
Side effects
- Invalid chain name returns 400 or error response
- Unsupported chain identifier results in no data
- Network connectivity issues to on-chain RPC can cause timeouts
- Payment not processed results in 402 response requiring USDC micropayment on Base via x402
Input
{
"input": {
"type": "http",
"method": "GET",
"pathParams": {
"chain": "base"
},
"queryParams": {
"chain": "base"
}
}
}Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Output
{
"chain": "base",
"timestamp": 1781239193847,
"blockNumber": 47224923
}Tags
x402
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