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Synapse API — Latest Block Lookup
x402
Synapse API — Latest Block Lookup 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 2026-09-14).
Fetches the latest block data from a specified blockchain network via the Synapse API suite
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 requested blockchain network, typically including block number (height), block hash, timestamp, and associated block metadata for the selected chain.
Example use cases
Real-time block height monitoring
“Check what the latest block number is on Ethereum mainnet right now and tell me the block hash and timestamp.”
Cross-chain block comparison
“Fetch the latest block data from both Polygon and Solana so I can compare their current chain heights.”
On-chain event anchoring
“I need the most recent Ethereum block timestamp so I can anchor a smart contract event to real time — can you grab that for me?”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/stable/block/latestWhen to prefer
Use this endpoint when you need real-time or near-real-time latest block data from one of 57+ supported blockchain networks via a simple pay-per-call model, especially in agentic workflows that require up-to-date chain state without managing your own node infrastructure.
Side effects
- Unsupported blockchain network returns an error or empty response
- Payment not attached or insufficient USDC results in HTTP 402
- Malformed request body returns validation error
- Network congestion or node unavailability may cause timeout
- Chain identifier not recognized returns 400 or similar error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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