Automaton Onchain Tools

app.vercel.automaton-tx-explainerPublished by automaton-tx-explainer.vercel.appOfficial publisherv1.5.0Updated Oct 25, 2026

Paid x402 crypto safety tools (Base/ETH/BSC): tx, approvals, contract risk, token deep scan.

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Overview

AI-generated overview

Remote MCP server with paid x402 crypto-safety tools for Base, Ethereum and BNB Smart Chain: transaction explanations, approvals, contract risk and token scans.

What you can do
Explain transactions on Base, Ethereum and BNB Smart Chain: status, fees, decoded method and arguments, ERC-20 transfers with symbols and amounts, plus calldata decoding with warnings before signing. Check wallets: ERC-20 approvals and unlimited allowances, address type, balances, nonce, proxy implementation and token metadata, and a combined wallet report. Assess contracts and tokens: heuristic risk flags, token due-diligence and a simulated buy/sell deep scan for honeypots, taxes, liquidity and holder concentration. Look up gas prices and estimated costs across the three chains, resolve ENS names and Basenames, and check URLs for phishing signals. Run a free health check with ping.
When to use it
Useful when an assistant needs to interpret on-chain activity or screen wallets, tokens and contracts on Base, Ethereum or BNB Smart Chain before acting, for example explaining a transaction, reviewing approvals or checking a token for honeypot and tax risks.
Requirements
Remote streamable HTTP endpoint; no local runtime, account or API key declared. Each tool call is paid per use through x402, so a wallet or payment method able to settle those charges is needed. Network access to the endpoint and the public data sources it queries.
Before you install
Most tools cost money per call, from $0.005 to $0.25 for the premium wallet and token reports, so repeated use adds up. Risk, phishing and deep-scan results are heuristic and explicitly not an audit, security or financial advice. Addresses and URLs you submit are sent to the remote provider and third-party data sources. The server only reads chain data and does not trade or sign.

Installation

In SourceWeft

  1. Open Automaton Onchain Tools in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/app.vercel.automaton-tx-explainer%2Fbase-tools/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "automaton-onchain-tools": {
      "type": "http",
      "url": "https://automaton-tx-explainer.vercel.app/mcp"
    }
  }
}

Tools

21

base_tx_explain

Explain a Base transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts. Costs $0.01.

Parametershashrequired

base_token_approvals

Check 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. Costs $0.005.

Parametersaddressrequired

base_address_inspect

Inspect 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. Costs $0.005.

Parametersaddressrequired

base_contract_risk

Heuristic 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. Costs $0.01.

Parametersaddressrequired

ethereum_tx_explain

Explain a Ethereum transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts. Costs $0.01.

Parametershashrequired

ethereum_token_approvals

Check 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. Costs $0.005.

Parametersaddressrequired

ethereum_address_inspect

Inspect 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. Costs $0.005.

Parametersaddressrequired

ethereum_contract_risk

Heuristic 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. Costs $0.01.

Parametersaddressrequired

bsc_tx_explain

Explain a BNB Smart Chain transaction: status, fee, decoded method + args (openchain signature DB), and ERC-20 transfers with symbols and human amounts. Costs $0.01.

Parametershashrequired

bsc_token_approvals

Check 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. Costs $0.005.

Parametersaddressrequired

bsc_address_inspect

Inspect 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. Costs $0.005.

Parametersaddressrequired

bsc_contract_risk

Heuristic 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. Costs $0.01.

Parametersaddressrequired

url_safety_check

Check 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. Costs $0.005.

Parametersurlrequired

gas_snapshot

Live 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. Costs $0.005.

Parameterschainrequired

ens_resolve

Resolve an ENS name or Basename to an address (plus url/twitter/github text records), or reverse-resolve an address to its primary name. Costs $0.005.

Parametersnamerequired

calldata_decode

Decode EVM calldata before signing: function signature candidates (openchain DB), decoded args, and plain-English warnings for approve/setApprovalForAll/permit/unlimited amounts. Costs $0.005.

Parametersdatarequired

wallet_portfolio

Wallet 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. Costs $0.01.

Parametersaddressrequired

wallet_report

Premium one-call wallet report across Base, Ethereum and BNB Smart Chain: balances, token approvals (flags unlimited), address type/EIP-7702 delegation, and a plain-English risk summary with findings. Costs $0.25.

Parametersaddressrequired

token_report

Premium one-call token due-diligence on Base, Ethereum or BNB Smart Chain: token metadata, proxy/upgradeability, owner and admin, owner/dead/self balances as % of supply, Sourcify verification, mint/pause/blacklist/fee flags, plain-English summary. Costs $0.25.

Parameterschainaddressrequired

token_deep_scan

Premium token deep scan on Base, Ethereum or BNB Smart Chain: simulated buy+sell against the main DEX pool (honeypot + buy/sell tax detection via eth_call, nothing traded), main pool liquidity in USD, V2 LP burned/locked share, top-holder concentration (Blockscout; partial fallback from recent transfers), plus owner powers (proxy, owner, mint/pause/blacklist/fee). Lists anything it couldn't determine. Costs $1.50.

Parameterschainaddressrequired

ping

Free health check.

Takes no parameters.

Version history

3
  1. v1.5.0LatestOct 25, 2026
  2. v1.2.0Oct 15, 2026
  3. v1.1.0Oct 13, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.