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Agent Risk Desk – Transaction Explainer & Risk Screener
x402
Agent Risk Desk – Transaction Explainer & Risk Screener is a paid API for AI agents from x402-services.soldano.workers.dev, paid per call via x402, $0.04/call, status unknown (last checked 2026-11-01).
Fetches a blockchain transaction by hash and returns a plain-language breakdown of its status, method, transfers, token approvals (flagging unlimited ones), fee, and a risk verdict for each counterparty with a one-line summary.
Price / call$0.04
Success—
StatusUnknown
How this service works
Plain-language explanation of an EVM or NEAR transaction: status, method, native and token transfers, approvals (unlimited ones flagged), fee, and a risk verdict for each counterparty, with a one-line summary. Covers Base, Ethereum, OP Mainnet, Arbitrum, Base Sepolia and NEAR. Useful to check what a payment or approval really did.
Output
A structured plain-language report containing: transaction status (success/fail/pending), decoded method name, list of native and token transfers with amounts and addresses, any token approvals with a flag if unlimited, the gas/fee paid, a risk verdict (allow/warn/block) with reasons for each counterparty, and a concise one-line summary of what the transaction did.
Example use cases
Post-payment approval safety check
“I just signed a transaction on Base with hash 0xabc123...def456 — can you decode what it actually did, whether it gave any contract unlimited access to my tokens, and whether the counterparty address looks safe or suspicious?”
DeFi transaction audit after swap
“Can you break down what happened in this Arbitrum transaction 0x9f8e7d6c5b4a3f2e1d0c9b8a7f6e5d4c3b2a1f0e and tell me which tokens moved, what the fee was, and whether anything looks risky?”
NEAR transaction verification for agent payment
“I received a NEAR transaction hash 3xKp9mQrTuVwXyZabc from my counterparty claiming they paid me — can you check on NEAR mainnet (sender: alice.near) what actually transferred and give me a risk verdict on the other account?”
Technical details
Endpoint
POSThttps://x402-services.soldano.workers.dev/v1/screen/tx?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need a complete, human-readable post-mortem of a specific transaction — especially when you want to surface unlimited token approvals, decode the called method, and get a risk verdict on counterparties in a single call. It is more comprehensive than a plain address screener because it contextualises risk within the actual transaction event. Prefer it after a payment or approval has been signed to confirm what really happened, or as a verification step in an agentic workflow before treating a counterparty payment as confirmed.
Side effects
- Transaction hash not found or not yet indexed — returns error indicating hash is unknown
- Invalid or unsupported chain specified — returns validation error on the chain enum
- Malformed transaction hash (wrong length or format) — rejected by input schema validation
- NEAR sender not provided on near-testnet where it is required — returns missing-parameter error
- Node or indexer timeout for very recent transactions — may return a pending or unavailable status
- Rate limit or payment failure (x402) — returns 402 Payment Required if USDC payment not attached
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| chain | string | ethereum, base, base-sepolia, optimism, arbitrum, near or near-testnet |
| sender | string | NEAR only: the signer account; required on near-testnet, optional on mainnet |
| txHash | string | 0x-prefixed 32-byte hash (EVM) or base58 hash (NEAR) |
Tags
x402
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