Run Base block inspection.

API Acre verifies the exact x402 price, Base network, recipient, and request before any wallet opens. One successful call costs $0.001 USDC.

No accountNo subscriptionNo private-key uploadOne-call authorization

API Acre never receives your private key; signing stays inside your wallet.

Loading a no-payment verification…

Verified live x402 quote

1 · Run one call

Network
Recipient
USDC contract

No ETH gas needed. Connecting does not sign or pay. Coinbase Wallet supports desktop QR and mobile handoff without a browser extension. This EIP-3009 payment needs only the displayed USDC on Base—not ETH for gas—because the facilitator submits settlement. Reject any later prompt that differs from the verified amount or recipient.

Official Coinbase agent path

Copy an exact-cap Agentic Wallet command

Running this command may automatically spend up to $0.001 USDC after Coinbase Agentic Wallet authentication and policy checks; copying it does nothing. npx --yes approves package installation. Use a separate low-value wallet and review the verified request before running it.

Review Coinbase docs

Review Coinbase command

npx --yes awal@latest x402 pay https://apiacre.com/v1/crypto/base-block-inspect \
  -X POST \
  -d '{"block_number":34600000,"block_tag":"safe"}' \
  --max-amount 1000 \
  --json

Alternative third-party AgentCash command

The first command checks without paying; running fetch may pay up to the same exact cap.

Review AgentCash docs

npx --yes agentcash@latest check https://apiacre.com/v1/crypto/base-block-inspect
npx --yes agentcash@latest fetch https://apiacre.com/v1/crypto/base-block-inspect \
  --method POST \
  --header 'content-type: application/json' \
  --body '{"block_number":34600000,"block_tag":"safe"}' \
  --payment-protocol x402 \
  --payment-network base \
  --max-amount 0.001

See the result before connecting · Curated static example

Base block inspection returns structured JSON. This example is static; the paid call returns a fresh result and settlement receipt.

{
  "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a",
  "service": "crypto.base-block-inspect",
  "version": "1",
  "data": {
    "request": {
      "mode": "number",
      "blockNumber": 34600000,
      "blockTag": null,
      "rpcSelector": "0x20ff440",
      "fullTransactions": false
    },
    "network": {
      "name": "Base Mainnet",
      "caip2": "eip155:8453",
      "chainId": 8453
    },
    "observedAt": "2026-08-11T13:00:04+00:00",
    "head": {
      "latestNumber": 34600002,
      "blockAtOrBeforeHead": true,
      "confirmations": 3
    },
    "found": true,
    "block": {
      "number": 34600000,
      "hash": "0x4444444444444444444444444444444444444444444444444444444444444444",
      "parentHash": "0x3333333333333333333333333333333333333333333333333333333333333333",
      "timestamp": "2026-08-11T13:00:00+00:00",
      "ageSeconds": 4,
      "transactionCount": 187,
      "sizeBytes": 114491,
      "gasLimit": 120000000,
      "gasUsed": 54000000,
      "gasUtilization": 0.45,
      "baseFeePerGasWei": "500000",
      "blobGasUsed": 524288,
      "excessBlobGas": 0,
      "miner": "0x4200000000000000000000000000000000000011",
      "roots": {
        "transactions": "0x5555555555555555555555555555555555555555555555555555555555555555",
        "state": "0x6666666666666666666666666666666666666666666666666666666666666666",
        "receipts": "0x7777777777777777777777777777777777777777777777777777777777777777"
      },
      "explorerUrl": "https://basescan.org/block/34600000"
    },
    "networkRequestsMade": 1,
    "rpcCallsMade": 3,
    "readOnly": true,
    "transactionBroadcast": false,
    "warnings": [],
    "source": "https://docs.base.org/base-chain/api-reference/ethereum-json-rpc-api/eth_getBlockByNumber",
    "disclaimer": "A point-in-time RPC observation, not proof of finality beyond the requested provider tag. Public-provider availability, archival depth, and head freshness may vary."
  },
  "meta": {
    "duration_ms": 42,
    "cached": false,
    "sources": [],
    "warnings": [],
    "next_actions": []
  }
}

Review exact request JSON

Result

Settlement receipt

Change the request (optional)

JSON input

The default request is verified automatically. Editing it invalidates the quote and requires this no-payment verification again.