usefulweb.site Bridge Transfer Tracker

Blockchain & Web3 explorers

Bridge Transfer Tracker

Where is my bridged money? Finds the bridge deposit in a transaction and checks if it arrived.

The "logs" array from eth_getTransactionReceipt.

Try an example: CCTP v1 burn Ethereum → Base (offline logs)

How it works

Paste the source-chain transaction of a bridge transfer. The tracker reads its logs from the chain, recognises Circle CCTP (v1 and v2), Across, the canonical OP Stack bridges and Arbitrum inbox deposits, decodes token, amount, sender, recipient and destination, and asks the protocol's own status service (Circle Iris attestation, Across deposit status) whether it was delivered.

  • Logs come from eth_getTransactionReceipt (or your pasted JSON). Event topics are computed with Keccak-256 from the protocols' published event signatures (Circle CCTP TokenMessenger v1/v2, Across SpokePool, OP Stack L1StandardBridge/OptimismPortal, Arbitrum Inbox).
  • Amounts: USDC (CCTP) has 6 decimals; other tokens are read with decimals() on the source chain when online.
  • Status: CCTP → Circle Iris attestation API (v1/v2); Across → Across deposit-status API; canonical rollup deposits are relayed by the rollup protocol and are described, not polled.
  • Pasted logs are decoded without any network call (status "offline").

For scripts and AI agents

  • JSON API: POST https://bridgetransfertracker.usefulweb.site/api/v1/calculate (same calculation as this page)
  • Interface description: OpenAPI 3.1 · AI guide: llms.txt
  • MCP server (Streamable HTTP): https://bridgetransfertracker.usefulweb.site/mcp · tool name bridge_transfer_tracker
Example request
curl -s -X POST https://bridgetransfertracker.usefulweb.site/api/v1/calculate \
  -H 'content-type: application/json' \
  -d '{…see OpenAPI examples…}'

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