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Synapse API — Arbitrum Latest Block
x402
Synapse API — Arbitrum Latest Block is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-13).
Fetches the most recent block data from the Arbitrum blockchain network
Price / call$0.01
Success—
StatusUnknown
How this service works
High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.
Output
Returns the latest block data from the Arbitrum network, including block number, block hash, timestamp, and associated transaction metadata as of the moment of the request.
Example use cases
Real-time Arbitrum block monitoring
“Keep checking the latest Arbitrum block every few seconds and tell me when the block number jumps by more than 5 in a single interval — something might be wrong with the chain.”
Arbitrum chain sync verification
“Fetch the latest block on Arbitrum for me so I can verify my local node is in sync with the network head.”
Timestamp anchor for DeFi event
“Grab the current latest block from Arbitrum, I need its timestamp to anchor the start time of my on-chain event logging.”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/arbitrum/block/latest?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need quick, pay-per-call access to the latest Arbitrum block without managing your own RPC node or API keys. Ideal for lightweight agents that only occasionally need chain head data and want to avoid subscription overhead.
Side effects
- Network or RPC node unavailability returns a 5xx error
- Payment not processed correctly (x402 payment failure) results in 402 response
- Malformed request body returns 400 validation error
- Arbitrum network congestion or downtime may cause delayed or stale responses
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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