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Phantom API — Arbitrum Latest Block
x402
Phantom API — Arbitrum Latest Block is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-20).
Fetches the most recent block data from the Arbitrum network via a pay-per-call Web3 infrastructure endpoint.
Price / call$0.01
Success—
StatusUnknown
How this service works
Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.
Output
Returns details of the most recently mined/validated block on the Arbitrum network, typically including block number, block hash, parent hash, timestamp, gas limit, gas used, transaction hashes, and miner/sequencer address.
Example use cases
Monitor Arbitrum chain tip in real time
“Keep checking the latest Arbitrum block every few seconds and alert me when the block number jumps by more than 5 — I want to make sure the chain isn't stalling.”
Verify transaction finality on Arbitrum
“I just submitted a transaction on Arbitrum — can you grab the latest block to confirm roughly where we are in the chain so I can estimate when my tx will be finalized?”
Sync dApp state with current Arbitrum head
“My dApp needs to know the current Arbitrum block number and timestamp to display the correct chain state — can you fetch the latest block for me?”
Technical details
Endpoint
POSThttps://phantom-api-omega.vercel.app/api/arbitrum/block/latest?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need real-time, pay-per-call access to the latest Arbitrum block without managing your own RPC node or committing to a subscription. It is ideal for agents that only occasionally need Arbitrum chain-tip data and want to pay $0.01 USDC per query via x402 micropayments rather than maintaining an always-on Web3 provider connection.
Side effects
- Network or RPC node unavailability returns a 5xx error
- Payment failure (insufficient USDC balance via x402) results in 402 Payment Required
- Malformed request body returns 400 Bad Request
- Arbitrum network congestion may cause delayed or stale block data
- Rate limiting may apply under high usage
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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