{
  "x402Version": 2,
  "id": 29006,
  "slug": "29006",
  "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",
  "serviceName": "base-rpc-health-map",
  "resourceType": "Monitoring",
  "accepts": [
    {
      "scheme": "exact",
      "network": "eip155:8453",
      "payTo": "0xD617a7145ca56E3ed58d639F9DEC6999B22441eE",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "amount": "10000",
      "amountUsd": 0.01,
      "maxTimeoutSeconds": 300
    }
  ],
  "outputSchema": {
    "properties": {
      "example": {
        "type": "object"
      },
      "type": {
        "type": "string"
      }
    },
    "required": [
      "type"
    ],
    "type": "object"
  },
  "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"
      }
    }
  },
  "tags": [
    "rpc",
    "infra",
    "base",
    "monitoring",
    "latency",
    "bazaar"
  ],
  "sourceHost": "x402.dailyelo.com",
  "lastUpdated": "2026-10-07T09:25:25.143Z",
  "quality": {
    "calls30d": 5,
    "uniquePayers30d": 3,
    "lastCalledAt": "2026-10-07T09:25:24.515Z"
  },
  "metadata": {
    "serviceName": "base-rpc-health-map",
    "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"
        }
      }
    }
  },
  "liveness": {
    "reliability": null
  },
  "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": "2026-10-14T01:15:01.050Z"
  },
  "exampleResponse": {
    "example": {},
    "type": "string"
  }
}