Playground

Explain a Base transaction.

Paste any Base transaction hash and it is decoded live by the production endpoint, right from your browser. Five stored samples replay instantly without a network call.

inputtx_hash · base (8453)
stored samples

The sample chips replay stored output — real Base transactions decoded earlier by the production pipeline, shown instantly with no network call. The Explain button is live: it sends your hash to the production MCP endpoint from your browser, and each live call counts against your own free tier (10 calls per client, then $0.02 per call via x402).

outputexplain_transaction

Click a sample chip to replay stored output instantly, or paste a hash and hit Explain to decode it live against the production endpoint.

The full response schema — all 30 action types and 6 risk flags — is in the docs. If your free tier runs out here, the response is the same x402 payment challenge an agent pays through; this page renders it so you can see what agents see.