Discover / automaton-tx-explainer.vercel.app

Base Tx Explainer

■ Challenge detected

Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.

Listed price
$0.01
Challenge detected
4 of the last 4 checks
Median response
88 ms
Last checked
17 Oct, 09:26 UTC
In our index since
13 Oct 2026

Endpoint

curl -i https://automaton-tx-explainer.vercel.app/v1/base/tx
# 402 Payment Required: pay with an x402 client (USDC on Base),
# then send the same request again with the payment attached.
17 listed endpoints · on x402 Bazaar

Checks and payment terms on this page refer to the endpoint above. Other listed endpoints have not been checked individually.

Base URLhttps://automaton-tx-explainer.vercel.app/v1

  • GET/bsc/tx$0.01Explain a BNB Smart Chain transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.
  • GET/bsc/approvals$0.005Check a BNB Smart Chain wallet's ERC-20 approvals: allowances for 8 major tokens (USDT, USDC, WBNB, BUSD...) to common spenders (Permit2, PancakeSwap v2 Router, PancakeSwap Smart Router, PancakeSwap Universal Router...); flags unlimited approvals.
  • GET/base/approvals$0.005Check a Base wallet's ERC-20 approvals: allowances for 8 major tokens (USDC, WETH, USDbC, DAI...) to common spenders (Permit2, Uniswap Universal Router, Uniswap SwapRouter02, Aerodrome Router...); flags unlimited approvals.
  • GET/base/tx$0.01Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.
  • GET/url-safety$0.005Check a URL for phishing/scam signals: MetaMask eth-phishing-detect + Phishing.Database blocklists, RDAP domain age, punycode and brand-lookalike detection, HTTPS reachability. Heuristic; not security advice.
  • GET/base/address$0.005Inspect any Base address: EOA vs contract vs EIP-7702 delegated, ETH balance, nonce, proxy implementation (EIP-1967/1167/zos), and ERC-20 name/symbol/decimals/supply.
  • GET/decode$0.005Decode EVM calldata before signing: function signature candidates (openchain DB), decoded args, and plain-English warnings for approve/setApprovalForAll/permit/unlimited amounts.
  • GET/ethereum/address$0.005Inspect any Ethereum address: EOA vs contract vs EIP-7702 delegated, ETH balance, nonce, proxy implementation (EIP-1967/1167/zos), and ERC-20 name/symbol/decimals/supply.
  • GET/ethereum/approvals$0.005Check a Ethereum wallet's ERC-20 approvals: allowances for 8 major tokens (USDC, USDT, WETH, DAI...) to common spenders (Permit2, Uniswap Universal Router v4, Uniswap Universal Router, Uniswap SwapRouter02...); flags unlimited approvals.
  • GET/base/contract-risk$0.01Heuristic risk flags for a Base contract from free public data: Sourcify verification, upgradeable proxy + admin, owner type, mint/pause/blacklist/fee selectors, bytecode size. Not an audit or financial advice.
  • GET/ethereum/contract-risk$0.01Heuristic risk flags for a Ethereum contract from free public data: Sourcify verification, upgradeable proxy + admin, owner type, mint/pause/blacklist/fee selectors, bytecode size. Not an audit or financial advice.
  • GET/bsc/address$0.005Inspect any BNB Smart Chain address: EOA vs contract vs EIP-7702 delegated, BNB balance, nonce, proxy implementation (EIP-1967/1167/zos), and ERC-20 name/symbol/decimals/supply.
  • GET/gas$0.005Live gas snapshot for Base, Ethereum and BNB Smart Chain: gas price, base fee, block utilization, and estimated native cost of a transfer, ERC-20 transfer and swap.
  • GET/bsc/contract-risk$0.01Heuristic risk flags for a BNB Smart Chain contract from free public data: Sourcify verification, upgradeable proxy + admin, owner type, mint/pause/blacklist/fee selectors, bytecode size. Not an audit or financial advice.
  • GET/ethereum/tx$0.01Explain a Ethereum transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts.
  • GET/ens$0.005Resolve an ENS name or Basename to an address (plus url/twitter/github text records), or reverse-resolve an address to its primary name.
  • GET/portfolio$0.01Wallet snapshot across Base, Ethereum and BNB Smart Chain: native balance plus balances of 8 major tokens per chain (USDC, USDT, WETH, DAI, WBTC/cbBTC...). No USD pricing.

A dash means the listing gives no price or method. Copy buttons copy the full URL.

Showing 17 of 17 listed endpoints.

Agents can find it through the Superstables MCP server and JSON API: GET /api/v1/services/automaton-tx-explainer.vercel.app

Recent checks

13 Oct 2026One bar per check, showing up to 20 recent checks. Coloured bars show relative response time, with a minimum visible height; full-height grey bars mean no challenge was detected. “Challenge detected” means HTTP 402 or another detected payment-challenge signal.17 Oct 2026
All 4 checks
When (UTC)ResultHTTPResponse
17 Oct, 09:26 UTCChallenge detected402172ms
16 Oct, 11:31 UTCChallenge detected40248ms
14 Oct, 23:56 UTCChallenge detected402122ms
13 Oct, 14:18 UTCChallenge detected40254ms

Questions

Did our last probe detect a payment challenge?

At our last probe on 17 Oct, 09:26 UTC, it returned HTTP 402 or another detected payment-challenge signal. This check did not test payment, delivery or compatibility with the Superstables client.

What price is recorded for Base Tx Explainer?

Its listed price is $0.01.

What payment terms does Base Tx Explainer advertise?

The listing advertises x402, Base and USDC. It names cdp as its facilitator. Check the seller's current payment challenge and authentication requirements before paying.

Where is Base Tx Explainer listed?

In x402 Bazaar. Superstables first indexed it on 13 Oct 2026.

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