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Synapse API — Latest Block Lookup (Tempo)
x402
Synapse API — Latest Block Lookup (Tempo) 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 2026-09-15).
Fetches the latest block data from a blockchain network via the Tempo module of 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 targeted blockchain network, typically including block number (height), block hash, timestamp, and related metadata for the chain tip.
Example use cases
Real-time block height monitoring
“Keep checking and tell me the latest block number on Ethereum every time I ask — I need to track how the chain is progressing.”
DeFi transaction confirmation check
“I just submitted a transaction and want to know what the current block is on the network so I can estimate when it might confirm.”
Blockchain analytics timestamp anchoring
“Can you pull the latest block data including timestamp so I can use it as a reference point for my on-chain event analysis?”
Technical details
Endpoint
POSThttps://synapse-api-brown.vercel.app/api/tempo/block/latestWhen to prefer
Use this endpoint when you need a quick, pay-per-call lookup of the latest block on any of 57+ supported blockchain networks without maintaining your own node infrastructure. Prefer this over self-hosted RPC calls when operating in an agent context that supports x402 micropayments and needs broad multi-chain coverage with minimal setup.
Side effects
- Network unavailable or blockchain node unreachable — returns error or timeout
- Invalid or unsupported blockchain network specified — returns 400 or 422 error
- Payment not completed via x402 — returns 402 Payment Required
- Rate limiting or quota exceeded — returns 429 Too Many Requests
- Empty body or missing required fields — returns validation error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object |
Tags
x402
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