{"resource":"https://x402-echo-service.onrender.com/chain/block","service":"Base Block","areas":["onchain_reads"],"answering":true,"http_status":402,"latency_ms":153,"price_usdc":0.001,"buyers_30d":1,"calls_30d":1,"description":"Read the head of the Base chain, or a specific block. POST {} for the latest block, or {\"number\":12345678} for one by height. Returns number, hash, unix timestamp, gas used and transaction count. Useful as an authoritative chain clock.","id":"06638ab6d5f5","category":"Blockchain reads","accuracy":null,"tool_calls":null,"checked_day":"2026-10-11","page":"https://velliumandco.com/sellers/06638ab6d5f5"}