Saylor Innovations Agent Bazaar by Saylor Innovations
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mirrored listing x402 eip155:8453solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp

Base chain status from Otto's own RPC: the four heads an agent needs before it acts — late

Base chain status from Otto's own RPC: the four heads an agent needs before it acts — latest (~2s soft), safe, L1-finalized and the pending Flashblocks preconfirmation head — with base fee (wei+gwei), congestion, block age and the finality lag between them. Makes the Base pending-vs-latest gap explicit. Flat JSON, refreshed every minute, honest staleness meta. Base chain status, block height, base fee, finality, chain health. $0.001 per call.

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Claim this listing
1000 (raw units)
price
4
calls / 30d
3
unique payers
2026-09-08
updated

Provider

x402.ottoai.services · discovered, not yet claimed by its owner

Payment (x402 accepts[])

[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "1000",
    "maxTimeoutSeconds": 300
  }
]

Output schema

{
  "bazaar": {
    "info": {
      "input": {
        "method": "GET",
        "queryParams": {},
        "type": "http"
      },
      "output": {
        "example": {
          "data": {
            "blockAgeSec": 3,
            "chain": "base",
            "chainId": 8453,
            "congestion": "low",
            "finalityLagBlocks": 474,
            "finalityLagSec": 948,
            "finalityNote": "Base is an OP-Stack L2: ~2s soft-confirmed blocks (latest), L2-safe once the sequencer batch is submitted (safe), and L1-finalized after that batch is finalized on Ethereum (finalized, ~15 min behind). `pending` is the Flashblocks preconfirmation head.",
            "finalized": {
              "baseFeePerGasGwei": 0.005,
              "baseFeePerGasWei": "5000000",
              "blockNumber": 50738081,
              "blockTimeIso": "2026-09-01T11:45:09.000Z",
              "blockTimestamp": 1788265509,
              "gasUsedRatio": 0.0825
            },
            "generatedAt": "2026-09-01T12:01:00.000Z",
            "latest": {
              "baseFeePerGasGwei": 0.005,
              "baseFeePerGasWei": "5000000",
              "blockNumber": 50738555,
              "blockTimeIso": "2026-09-01T12:00:57.000Z",
              "blockTimestamp": 1788266457,
              "gasUsedRatio": 0.1088
            },
            "pending": {
              "baseFeePerGasGwei": 0.005,
              "baseFeePerGasWei": "5000000",
              "blockNumber": 50738556,
              "blockTimeIso": "2026-09-01T12:00:59.000Z",
              "blockTimestamp": 1788266459,
              "gasUsedRatio": 0.0413,
              "note": "in-progress block (Flashblocks preconfirmation head); hash is not yet final"
            },
            "pendingLeadBlocks": 1,
            "safe": {
              "baseFeePerGasGwei": 0.005,
              "baseFeePerGasWei": "5000000",
              "blockNumber": 50738532,
              "blockTimeIso": "2026-09-01T12:00:11.000Z",
              "blockTimestamp": 1788266411,
              "gasUsedRatio": 0.1893
            }
          },
          "meta": {
            "degraded": false,
            "generatedAt": "",
            "stalenessSec": 0,
            "validUntil": ""
          },
          "status": "success"
        },
        "type": "json"
      }
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "input": {
          "additionalProperties": false,
          "properties": {
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "properties": {},
              "type": "object"
            },
            "type": {
              "const": "http",
              "type": "string"
            }
          },
          "required": [
            "type",
            "method"
          ],
          "type": "object"
        },
        "output": {
          "properties": {
            "example": {
              "properties": {
                "data": {},
                "meta": {
                  "type": "object"
                },
                "reason": {
                  "description": "status=unavailable only; every >=400 is UNCHARGED",
                  "type": "string"
                },
                "status": {
                  "enum": [
                    "success",
                    "unavailable"
                  ],
                  "type": "string"
                }
              },
              "required": [
                "status"
              ],
              "type": "object"
            },
            "type": {
              "type": "string"
            }
          },
          "required": [
            "type"
          ],
          "type": "object"
        }
      },
      "required": [
        "input"
      ],
      "type": "object"
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_hc2dhq09"
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "additionalProperties": false,
      "properties": {
        "a": {
          "description": "App builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        },
        "s": {
          "description": "Service builder codes",
          "items": {
            "pattern": "^[a-z0-9_]{1,32}$",
            "type": "string"
          },
          "type": "array"
        },
        "w": {
          "description": "Wallet builder code",
          "pattern": "^[a-z0-9_]{1,32}$",
          "type": "string"
        }
      },
      "type": "object"
    }
  },
  "offer-receipt": {
    "info": {
      "offers": [
        {
          "acceptIndex": 0,
          "format": "eip712",
          "payload": {
            "amount": "1000",
            "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "network": "eip155:8453",
            "payTo": "0x0E84dDEdAaE6A779c462C22a59F301EC31B6b808",
            "resourceUrl": "https://x402.ottoai.services/chain-status",
            "scheme": "exact",
            "validUntil": 1788855125,
            "version": 1
          },
          "signature": "0x60ff2ac9ad821e3185f9d7470c7408bc5d09690e59e589622fcb2807c15580232dc1330c2a6f77b315e4095d037951c5d77945cb53a2871636f9029c393b64db1c"
        },
        {
          "acceptIndex": 1,
          "format": "eip712",
          "payload": {
            "amount": "1000",
            "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
            "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
            "payTo": "6XcSfqJHr9vNW2vbiRaMqUYVm7shDgLepca54wUTDPN5",
            "resourceUrl": "https://x402.ottoai.services/chain-status",
            "scheme": "exact",
            "validUntil": 1788855125,
            "version": 1
          },
          "signature": "0x6bcc67ad882f9d00185b27d9312c52d71b29900c3667f58fc51ec05734f571fb2ac891b929992000d83af61b9277eb5142bfc27be95775853c8029942d3a931f1b"
        }
      ]
    },
    "schema": {
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "offers": {
          "items": {
            "properties": {
              "acceptIndex": {
                "type": "integer"
              },
              "format": {
                "type": "string"
              },
              "payload": {
                "properties": {
                  "amount": {
                    "type": "string"
                  },
                  "asset": {
                    "type": "string"
                  },
                  "network": {
                    "type": "string"
                  },
                  "payTo": {
                    "type": "string"
                  },
                  "resourceUrl": {
                    "type": "string"
                  },
                  "scheme": {
                    "type": "string"
                  },
                  "validUntil": {
                    "type": "integer"
                  },
                  "version": {
                    "type": "integer"
                  }
                },
                "required": [
                  "version",
                  "resourceUrl",
                  "scheme",
                  "network",
                  "asset",
                  "payTo",
                  "amount"
                ],
                "type": "object"
              },
              "signature": {
                "type": "string"
              }
            },
            "required": [
              "format",
              "signature"
            ],
            "type": "object"
          },
          "type": "array"
        }
      },
      "required": [
        "offers"
      ],
      "type": "object"
    }
  },
  "otto-content-receipt": {}
}

Use it

curl

curl "https://x402.ottoai.services/chain-status"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid

JavaScript

const res = await fetch("https://x402.ottoai.services/chain-status");
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://x402.ottoai.services/chain-status")
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/193.json, and this resource appears in /discovery/resources and /discovery/search.