{"id":125941,"recorded_at":"2026-10-26T14:40:27.056873Z","observed_at":"2026-10-26T14:40:27.056839Z","subject_kind":"source_record","subject":"x402_bazaar:https://x402.dailyelo.com/v1/rpc/health","kind":"listing","method":"baseline/1","body":{"endpoints":[["x402","https://x402.dailyelo.com/v1/rpc/health"]],"name":"base-rpc-health-map","owner_address":"0xd617a7145ca56e3ed58d639f9dec6999b22441ee","raw":{"accepts":[{"amount":"10000","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"maxTimeoutSeconds":300,"network":"eip155:8453","payTo":"0xD617a7145ca56E3ed58d639F9DEC6999B22441eE","scheme":"exact"}],"description":"Which Base public RPCs serve a stale chain tip. Every 30s we ask all major public RPCs for eth_blockNumber in parallel and record how many blocks behind the fastest peer each was, plus latency and error rate. An RPC never reports its own lag, so an agent reading a balance from a lagging endpoint cannot tell. Omit ?rpc for the full map; ?rpc=<host> for one.","extensions":{"bazaar":{"info":{"input":{"method":"GET","queryParams":{"rpc":"https://mainnet.base.org"},"type":"http"},"output":{"example":{"endpoints":[{"behind_1plus_rate":0.03,"error":2,"error_rate":0.0007,"height_behind":{"max":2,"p50":0,"p90":0,"p99":1,"samples":2878},"latency_ms":{"max":5053,"p50":88,"p90":135,"p99":232,"samples":2878},"ok":2878,"probes":2880,"rpc":"https://base-rpc.publicnode.com","stale":0}],"network":"eip155:8453","schema":"rpchealth/v1","updated_at":1719500000,"window":{"endpoints_compared":10,"hours":24,"probe_interval_s":30,"probe_rounds":2880}},"type":"json"}},"schema":{"$schema":"https://json-schema.org/draft/2020-12/schema","properties":{"input":{"additionalProperties":false,"properties":{"method":{"enum":["GET"],"type":"string"},"queryParams":{"description":"Which Base RPC endpoints are serving a stale chain tip right now. Every 30s we ask all major public RPCs for eth_blockNumber in parallel (same instant) and record how many blocks behind the fastest peer each one was, plus latency and error rate. Omit ?rpc for the full map; pass ?rpc=<url|hostname> to look up one endpoint. Measurements only, no recommendation.","properties":{"rpc":{"description":"optional: RPC url or hostname to look up (omit for the full map)","type":"string"}},"type":"object"},"type":{"const":"http","type":"string"}},"required":["type","method"],"type":"object"},"output":{"properties":{"example":{"type":"object"},"type":{"type":"string"}},"required":["type"],"type":"object"}},"required":["input"],"type":"object"}}},"lastUpdated":"2026-10-22T22:43:30.566Z","quality":{"l30DaysTotalCalls":7,"l30DaysUniquePayers":3,"lastCalledAt":"2026-10-22T22:43:30.381Z"},"resource":"https://x402.dailyelo.com/v1/rpc/health","serviceName":"base-rpc-health-map","tags":["rpc","infra","base","monitoring","latency"],"type":"http","x402Version":2},"source":"x402_bazaar","summary":"Which Base public RPCs serve a stale chain tip. Every 30s we ask all major public RPCs for eth_blockNumber in parallel and record how many blocks behind the fastest peer each was, plus latency and error rate. An RPC never reports its own lag, so an agent reading a balance from a lagging endpoint cannot tell. 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