{
  "x402Version": 2,
  "id": 2229,
  "slug": "2229",
  "resource": "https://x402.dailyelo.com/v1/rpc/health",
  "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.",
  "type": "http",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xD617a7145ca56E3ed58d639F9DEC6999B22441eE",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "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"
      }
    }
  },
  "tags": [
    "bazaar"
  ],
  "sourceHost": "x402.dailyelo.com",
  "lastUpdated": "2026-09-15T19:51:59.568Z",
  "quality": {
    "calls30d": 4,
    "uniquePayers30d": 3,
    "lastCalledAt": "2026-09-15T19:51:59.132Z"
  },
  "liveness": {},
  "verified": false,
  "featured": false,
  "provider": {
    "host": "x402.dailyelo.com",
    "manifest_name": "x402.dailyelo.com",
    "source": "cdp-mirror",
    "source_manifest_url": "https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources",
    "submitted_at": "2026-09-18T22:00:31.484Z"
  }
}