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mirrored listing x402 eip155:8453

Real-time L2 sequencer health across 12 chains (Base, Arbitrum, Optimism, zkSync, Blast, L

Real-time L2 sequencer health across 12 chains (Base, Arbitrum, Optimism, zkSync, Blast, Linea, Mantle, Mode, Scroll, Taiko, Polygon zkEVM, Casper). Returns kernel-level P99/P95 RTT from eBPF probes, revert ratios, gas pressure, and execution recommendation.

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Claim this listing
10000 (raw units)
price
1
calls / 30d
1
unique payers
2026-09-01
updated

Provider

rtt.phoenix-ai.work · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0xbb967F16C7f3e9B4c1626680684445d41dBE44Ab",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "10000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "type": "http"
      },
      "output": {
        "example": {
          "arb_revert_ratio": 0.011,
          "base_revert_ratio": 0.023,
          "blob_base_fee": 1,
          "chains": {
            "arbitrum": {
              "p95_ms": 38.2,
              "p99_ms": 55.7,
              "stall": false,
              "updated": 1725188400
            },
            "base": {
              "p95_ms": 31.1,
              "p99_ms": 42.3,
              "stall": false,
              "updated": 1725188400
            },
            "optimism": {
              "p95_ms": 33.6,
              "p99_ms": 48.1,
              "stall": false,
              "updated": 1725188400
            },
            "zksync": {
              "p95_ms": 45,
              "p99_ms": 67.2,
              "stall": false,
              "updated": 1725188400
            }
          },
          "gas_pressure": 12.5,
          "recommendation": "SAFE_TO_EXECUTE",
          "source": "phoenix-zero.vercel.app",
          "timestamp": "2026-09-01T12:00:00Z"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET",
                "HEAD",
                "DELETE"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "arb_revert_ratio": {
                  "description": "Fraction of reverted txs on Arbitrum (0.0-1.0)",
                  "type": "number"
                },
                "base_revert_ratio": {
                  "description": "Fraction of reverted txs on Base (0.0-1.0)",
                  "type": "number"
                },
                "blob_base_fee": {
                  "description": "EIP-4844 blob base fee",
                  "type": "number"
                },
                "chains": {
                  "description": "Per-chain P99/P95 RTT in ms, stall flag, last-updated unix timestamp. Chains: base, arbitrum, optimism, zksync, blast, linea, mantle, mode, scroll, taiko, polygon_zkevm, casper",
                  "type": "object"
                },
                "gas_pressure": {
                  "description": "L1 gas price in gwei",
                  "type": "number"
                },
                "recommendation": {
                  "enum": [
                    "SAFE_TO_EXECUTE",
                    "ELEVATED_RISK",
                    "HIGH_RISK",
                    "STALL_DETECTED"
                  ],
                  "type": "string"
                },
                "timestamp": {
                  "description": "ISO 8601 UTC timestamp",
                  "type": "string"
                }
              },
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  }
}

Use it

curl

curl "https://rtt.phoenix-ai.work/api/v1/health"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://rtt.phoenix-ai.work/api/v1/health");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}

Python

import httpx
res = httpx.get("https://rtt.phoenix-ai.work/api/v1/health")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Machine-readable

Everything on this page is also available as clean JSON at /resources/7706.json, and this resource appears in /discovery/resources and /discovery/search.