Free static example · no wallet required

Base USDC transfer history

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No accountNo subscriptionExact USDC priceFresh calls only are paid

Full response envelope

What you receive

Demonstration data only. The paid endpoint returns a fresh result and settlement receipt.

{
  "request_id": "018f1f54-7f38-7ba2-8dc3-5f90272d9f1a",
  "service": "crypto.base-usdc-transfers",
  "version": "1",
  "data": {
    "network": "eip155:8453",
    "address": "0x1111111111111111111111111111111111111111",
    "asset": {
      "name": "USD Coin",
      "symbol": "USDC",
      "contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "decimals": 6
    },
    "blockRange": {
      "requestedTag": "safe",
      "fromBlock": 34565891,
      "toBlock": 34567890,
      "toBlockHash": "0x1111111111111111111111111111111111111111111111111111111111111111",
      "toBlockTimestamp": "2026-08-10T16:00:00+00:00",
      "requestedLookbackBlocks": 2000,
      "scannedBlocks": 2000
    },
    "direction": "any",
    "eventSignature": "Transfer(address,address,uint256)",
    "topic0": "0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef",
    "queriedLogCount": 1,
    "detected": 1,
    "returned": 1,
    "truncated": false,
    "duplicatesRemoved": 0,
    "removedSkipped": 0,
    "transfers": [
      {
        "blockNumber": 34567800,
        "blockHash": "0x2222222222222222222222222222222222222222222222222222222222222222",
        "transactionHash": "0x3333333333333333333333333333333333333333333333333333333333333333",
        "transactionIndex": 4,
        "logIndex": 7,
        "from": "0x2222222222222222222222222222222222222222",
        "to": "0x1111111111111111111111111111111111111111",
        "direction": "incoming",
        "amountAtomic": "12500000",
        "amountUsdc": "12.5",
        "explorerUrl": "https://basescan.org/tx/0x3333333333333333333333333333333333333333333333333333333333333333"
      }
    ],
    "networkRequestsMade": 2,
    "rpcCallsMade": 3,
    "readOnly": true,
    "transactionBroadcast": false,
    "warnings": [],
    "limitations": [
      "Only Circle's official native USDC contract on Base mainnet is queried.",
      "The result covers only the resolved bounded block range, not complete account history.",
      "Finality and provider freshness depend on the requested block tag and public Base RPC."
    ],
    "addressExplorerUrl": "https://basescan.org/address/0x1111111111111111111111111111111111111111",
    "source": "https://docs.base.org/base-chain/api-reference/ethereum-json-rpc-api/eth_getLogs",
    "usdcSource": "https://developers.circle.com/stablecoins/usdc-contract-addresses",
    "tokenSource": "https://eips.ethereum.org/EIPS/eip-20",
    "disclaimer": "Public onchain event evidence only. A transfer does not establish identity, ownership, authorization, commercial purpose, compliance status, or current balance."
  },
  "meta": {
    "duration_ms": 42,
    "cached": false,
    "sources": [],
    "warnings": [],
    "next_actions": []
  }
}

Example request

Input JSON

{
  "address": "0x1111111111111111111111111111111111111111",
  "lookback_blocks": 2000,
  "direction": "any",
  "limit": 25,
  "block_tag": "safe"
}

Delivery contract

One paid POST

Retrieve newest-first incoming and outgoing Circle USDC Transfer events for one address across a validated, bounded Base mainnet block range.

POST /v1/crypto/base-usdc-transfers

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