Saylor Innovations On-Chain Data

Name: Saylor Innovations On-Chain Data
Price: 0.01 USDC
Availability: InStock

Arbitrum block by number or latest - hash, time, transaction count, gas used, base fee and miner

DataLiveeip155:8453Exactvia cdp

https://saylorinnovations.com/api/evm/arbitrum/block/latest

EvmArbitrumBlockOnchain

Calls · 30d

8↑ 41%

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 32 snapshots so far.

$15.76

Verified settled volume

1,657 settlements proven x402 by their on-chain EIP-3009 marker.

$0.010

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-10-20 14:46Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required to access this resource.",
  "accepts": [
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "memo": "saylor:evm:block:arbitrum/block/",
        "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YXJiaXRydW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiQjNrZmpLZEJtMWFZQ3lVNEU5eVVhYjZ6ejFWQkxjS0FxUkEyVjdlTFJGY0YiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MjAwMCwiZXhwIjoxNzkwMjcyMDM0MjM0fQ.mVNq-iV5-PxQoksNgV4q_WrKKClY-socGasF-9PQR64",
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "reference": "B3kfjKdBm1aYCyU4E9yUab6zz1VBLcKAqRA2V7eLRFcF"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "2000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
      "extra": {
        "memo": "saylor:evm:block:arbitrum/block/",
        "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YXJiaXRydW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiNVdhUkdNd2tZZU1WbXo0a0xrdVFyS1NnQkg1TVBmbXk5c3JjOFB4MTZOY0wiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MjAwMCwiZXhwIjoxNzkwMjcyMDM0MjM1fQ.oXqpv1p27ghkP0UjBMqhoH-xWOdav_OfMCvilcvxyhQ",
        "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
        "reference": "5WaRGMwkYeMVmz4kLkuQrKSgBH5MPfmy9src8Px16NcL"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "2000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "memo": "saylor:evm:block:arbitrum/block/",
        "name": "USD Coin",
        "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
        "version": "2",
        "facilitatorOnly": true,
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
      "extra": {
        "memo": "saylor:evm:block:arbitrum/block/",
        "name": "USD Coin",
        "note": "Polygon settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
        "version": "2",
        "facilitatorOnly": true,
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:137",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
      "extra": {
        "memo": "saylor:evm:block:arbitrum/block/",
        "name": "USD Coin",
        "note": "Arbitrum settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
        "version": "2",
        "facilitatorOnly": true,
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
      "amount": "2000",
      "scheme": "exact",
      "network": "eip155:42161",
      "maxTimeoutSeconds": 120
    },
    {
      "asset": "So11111111111111111111111111111111111111112",
      "extra": {
        "memo": "saylor:evm:block:arbitrum/block/",
        "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
        "native": true,
        "session": "eyJhcnRpY2xlSWQiOiJldm06YmxvY2s6YXJiaXRydW0vYmxvY2svbGF0ZXN0IiwicmVmZXJlbmNlIjoiQ3NHdjI3cUZLRUNUOGlMZnpHTVZ4cG5pUGVld1pNTTZmU2hUdkhaaFNORTYiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6MTY2MzAsImV4cCI6MTc5MDI3MjAzNDIzNX0.dyAxf12jNcCCbT6NcQ6GKxPrK6C3MTiOFwX88DzNUnE",
        "reference": "CsGv27qFKECT8iLfzGMVxpniPeewZMM6fShTvHZhSNE6",
        "solUsdPrice": 116.65,
        "quotedLamports": "17145"
      },
      "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
      "amount": "16630",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 120
    }
  ],
  "resource": {
    "url": "https://saylorinnovations.com/api/evm/arbitrum/block/latest",
    "tags": [
      "evm",
      "arbitrum",
      "block",
      "onchain"
    ],
    "iconUrl": "https://saylorinnovations.com/og-image.jpg",
    "mimeType": "application/json",
    "description": "EVM Block (arbitrum) — On-Chain Data",
    "serviceName": "Saylor Innovations On-Chain Lookups (Base + Ethereum)"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "hash": "0xcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd",
            "time": "2026-09-24T16:53:20.000Z",
            "chain": "base",
            "miner": "0x4200000000000000000000000000000000000011",
            "number": 51738756,
            "gas_used": 41000000,
            "tx_count": 212,
            "gas_limit": 150000000,
            "timestamp": 1790240000,
            "base_fee_gwei": 0.005
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD",
                  "DELETE"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "json"
              },
              "example": {
                "type": "object",
                "required": [
                  "chain",
                  "number",
                  "hash"
                ],
                "properties": {
                  "hash": {
                    "type": "string"
                  },
                  "time": {
                    "type": "string"
                  },
                  "chain": {
                    "type": "string"
                  },
                  "miner": {
                    "type": "string"
                  },
                  "number": {
                    "type": [
                      "number",
                      "null"
                    ]
                  },
                  "gas_used": {
                    "type": [
                      "number",
                      "null"
                    ]
                  },
                  "tx_count": {
                    "type": [
                      "number",
                      "null"
                    ]
                  },
                  "gas_limit": {
                    "type": [
                      "number",
                      "null"
                    ]
                  },
                  "timestamp": {
                    "type": [
                      "number",
                      "null"
                    ]
                  },
                  "base_fee_gwei": {
                    "type": [
                      "number",
                      "null"
                    ]
                  }
                }
              }
            }
          }
        }
      }
    },
    "method": "GET",
    "example": {
      "hash": "0xcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcdcd",
      "time": "2026-09-24T16:53:20.000Z",
      "chain": "base",
      "miner": "0x4200000000000000000000000000000000000011",
      "number": 51738756,
      "gas_used": 41000000,
      "tx_count": 212,
      "gas_limit": 150000000,
      "timestamp": 1790240000,
      "base_fee_gwei": 0.005
    },
    "license": "LicenseRef-Saylor-Agent-Use-1.0",
    "mimeType": "application/json",
    "freshness": "live chain head on every request",
    "freeSample": "https://saylorinnovations.com/api/evm/sample/block",
    "tokenCount": null,
    "inputSchema": {
      "chain": "base | ethereum | arbitrum | optimism | polygon (path)",
      "number": "block number (decimal or 0x) or latest (path)"
    },
    "serviceName": "Saylor Innovations On-Chain Lookups (Base + Ethereum)",
    "instructions": "STANDARD PATH (works with stock x402 clients): send payload.transaction — a base64 partially-signed Solana transaction — and we route verify/settle through an x402 facilitator that sponsors the fee and submits it. Include the chosen accepts entry as \"accepted\" so we can match terms. ALTERNATIVE PATH (no facilitator): Pick ONE entry from accepts and use the reference and session from THAT entry — each asset has its own. USDC or USDT: send an SPL transfer of the exact amount. Native SOL (asset=So11111111111111111111111111111111111111112, extra.native=true): send that many lamports with a system transfer. Either way include extra.reference as a read-only account (Solana Pay style), then retry with PAYMENT-SIGNATURE: base64({x402Version:2, payload:{session, reference}}). If your client cannot attach a reference, send payload.signature instead (USDC only). SOL amounts are quoted live and expire in 120s; stablecoins do not move. The facilitator path verifies and settles in this request. Only the alternative self-submitted Solana path needs retries while the transfer is indexed (typically 3-4 attempts over 10-20s). On that path, a 402 saying \"payment not found on-chain yet\" means keep retrying.",
    "outputSchema": {
      "type": "object",
      "required": [
        "chain",
        "number",
        "hash"
      ],
      "properties": {
        "hash": {
          "type": "string"
        },
        "time": {
          "type": "string"
        },
        "chain": {
          "type": "string"
        },
        "miner": {
          "type": "string"
        },
        "number": {
          "type": [
            "number",
            "null"
          ]
        },
        "gas_used": {
          "type": [
            "number",
            "null"
          ]
        },
        "tx_count": {
          "type": [
            "number",
            "null"
          ]
        },
        "gas_limit": {
          "type": [
            "number",
            "null"
          ]
        },
        "timestamp": {
          "type": [
            "number",
            "null"
          ]
        },
        "base_fee_gwei": {
          "type": [
            "number",
            "null"
          ]
        }
      }
    },
    "settlementModes": [
      "facilitator-transaction",
      "self-submitted-reference"
    ],
    "typicalLatencyMs": 400
  },
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD

on Base · exact scheme

Pay 0.01 USDC on Base to 0xA2A8…fc8aa. The signed payment is good for 2 minutes.

Paid to: 0xA2A8…fc8aa
USD Coin contract: 0x8335…02913
Payment window: 2 minutes
As published: 10000 smallest units

10000units

on Polygon · exact scheme