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store.agentexchange.work chain block-number
https://store.agentexchange.work/chain/block-number
answers 402
The current chain tip (latest block height) via eth_blockNumber, across Base, Ethereum, Optimism, Arbitrum, Polygon, Gnosis. The freshness read settlement, indexing and trading agents poll to know where the chain is. Live public RPC; one paid call.
We sent a real
GET request to this endpoint and it
answered 402 with payment requirements we could parse.
- Price
- $0.001
- Network
- base
- Pay to
- 0xc91cE6291eDC0713ec753BAFBA002506ffb2b95c
- Spec dialect
- v2 (declares x402Version 2)
- Transport
- PAYMENT-REQUIRED header
- HTTP method
- GET
- Response latency
- 689 ms
- Payment options
- 2 usable of 2
- Last checked
- 2026-09-06T01:10:10.209Z (20d ago)
- Category
- finance-crypto
Re-check it yourself:
curl "https://api.the402.dev/validate?url=https%3A%2F%2Fstore.agentexchange.work%2Fchain%2Fblock-number"