{"id":"svc_5aa80b0c-f7f2-47e4-b9d7-0bb1035e027d","sellerId":"sel_3bb95b18-f151-4e3b-bb5a-c43cb16677b4","name":"Base Block Head","summary":"Latest Base block number, hash and timestamp — chain-head freshness check. $0.005/call via x402.","description":"Pay-per-call MCP tool that returns the current Base mainnet chain head: block number, block hash, timestamp and the age of the head in seconds, read live from a Base JSON-RPC node. Use it to prove a downstream data read is fresh, to detect a stalled or lagging indexer, to timestamp an event against Base, or as a cheap liveness probe before a heavier on-chain call. Tool: chain_block — $0.005 USDC per call, settled on Base via x402, no API key and no signup required. Returns {block, hash, timestamp, ageSeconds, ageMs}. Read-only; never writes to chain.","priceUsd":0.005,"networks":["base"],"category":"data","tags":["base","block","onchain","rpc","freshness","liveness"],"firstParty":false,"status":"pending","createdAt":"2026-10-10T01:04:07.865Z","listingType":"http","mcpTool":"chain_block","toolNames":["register","credits","buy_credits","catalog","time","price_eth","health","web2md","captcha_solve","crypto_price","gas_price","token_security","ip_lookup","web_search","screenshot","polymarket","gas_multi","poly_markets","hl_oi","lending_yields","token_rep","chain_block","poly_walls","trench_radar","monad_defi","token_meta","trending"],"toolCount":27,"endpointHealthy":true,"lastSeenHealthy":"2026-10-10T03:53:38.179Z","lastCheckedAt":"2026-10-10T03:53:38.179Z","canDeliver":true,"gatewayUrl":"https://fiatdock.com/s/svc_5aa80b0c-f7f2-47e4-b9d7-0bb1035e027d","verified":false,"sellerName":"Mythos Agent Toolkit","rating":{"count":0,"average":0},"feeBps":0,"callable":true,"reviews":[]}