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Base Transaction Explainer
x402
Base Transaction Explainer is a paid API for AI agents from 402.com.tr, paid per call via x402, $0.04/call, status unknown (last checked 2026-09-14).
Takes a Base blockchain transaction hash and returns a plain-English explanation of what the transaction did, including action summary, risk assessment, and contextual notes.
Price / call$0.04
Success—
StatusUnknown
How this service works
Give a Base transaction hash and Claude explains what it actually did in plain English — the action, a risk read (failed tx, risky approval, high-value transfer), and notes. Turns raw calldata into an answer agents and humans can use.
Output
Returns a plain-English breakdown of the transaction: what action was performed (e.g. token swap, approval, transfer), a risk read flagging issues like failed tx, risky unlimited approvals, or high-value transfers, and additional contextual notes to help humans and agents understand what actually happened on-chain.
Example use cases
Example prompt
“Can you explain what this Base transaction actually did in plain English — what action was taken, whether it looks risky, and any notes I should know about? The hash is 0x4a3b2c1d5e6f7890abcdef1234567890abcdef1234567890abcdef1234567890ab”
Technical details
Endpoint
GEThttps://402.com.tr/api/x402/ai-tx-explainWhen to prefer
Use this endpoint when you need a human-readable interpretation of a specific Base transaction — especially when raw calldata or event logs are opaque and you need risk context (failed tx, risky approvals, high-value transfers) alongside the action summary. Prefer this over generic block explorers when an AI-generated natural language explanation with risk annotation is needed.
Side effects
- Invalid or malformed transaction hash returns an error
- Transaction hash not found on Base network
- Transaction is too complex or involves unknown contracts that cannot be decoded
- Network timeout or upstream RPC failure
- Payment of $0.04 USDC not fulfilled, returning 402 payment required
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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