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ContractLens MCP Server

by appin60-contractlens-api Your server? Claim it
answering

ContractLens is answering right now. Last checked 9 min ago. It exposes 5 tools.

EVM token risk checks, x402 payability check for sellers, address classifier and live gas.

Uptime history 69 hours of history · worst hour 25%
69 hours agonow
93.5%
Uptime 24h
86 of 92 checks
5
Tools
read from the server
443 ms
Response time
average over 24h
open, no key
Access
streamable-http

ContractLens does not always answer

Over the last week it answered 97.3% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 9 min ago.

run in your terminal
claude mcp add contractlens --transport http https://contractlens-api.appin60.com/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "contractlens": {
      "url": "https://contractlens-api.appin60.com/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.contractlens]
url = "https://contractlens-api.appin60.com/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "contractlens": {
      "url": "https://contractlens-api.appin60.com/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "contractlens": {
      "url": "https://contractlens-api.appin60.com/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

address
address_info
What is this address? EOA, EIP-7702 delegated EOA, Safe multisig (threshold, owners), timelock, ERC-20 token, proxy or contract, with native balance. Use before sending funds to or trusting an address.
gas
gas_now
Live EIP-1559 gas for a chain: base fee, slow/standard/fast tips, maxFeePerGas values and the cost of common actions. Chains: 1, 8453, 42161, 10, 137, 56.
scan
scan_contract
Security scan of a verified EVM smart contract: who controls it now (owner / proxy admin: renounced, single-key EOA or Safe multisig), every owner/role-gated function (mint, pause, blacklist, upgrade, fees), proxy status, and Slither static-analysis findings ranked by impact. Use before approving, depositing into or buying a token. Chains: 1 Ethereum, 8453 Base, 42161 Arbitrum, 10 Optimism, 137 Polygon, 56 BNB.
token
check_token
Fast (1-3 s) risk verdict for an ERC-20 token before buying it: LOW/MEDIUM/HIGH with reasons. Who controls it (renounced, single key, Safe multisig, timelock), upgradeable proxy, admin powers in the bytecode (mint, blacklist, pause, adjustable tax, trading switch), source verification, DEX liquidity and pair age. Chains: 1 Ethereum, 8453 Base, 42161 Arbitrum, 10 Optimism, 137 Polygon, 56 BNB.
x402
check_x402_payability
For x402 sellers: can a real buyer actually pay this endpoint? Sends one payment signed by a fresh unfunded key through the endpoint's server and facilitator. Payable endpoints fail only on balance; anything else is reported with the exact reason (schema, description over 500 chars, EIP-712 domain, price over the $1 default client cap, paywall not enforcing).

Endpoints

URLTransportStateLatencyChecked
https://contractlens-api.appin60.com/mcp streamable-http answering 505 ms 9 min ago

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ContractLens — questions

Answers built from our own checks of this server.

What can ContractLens do?
It exposes 5 tools, read directly from the server on our last check. Among them: address_info, check_token, check_x402_payability, gas_now, scan_contract. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is ContractLens working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 86 of 92 checks got a reply (93.5%), average response time 443 ms. The bar chart above shows every period we have measured.
How do I connect ContractLens?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does ContractLens need an API key?
No. ContractLens completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is ContractLens?
It answers our handshake in 443 ms on average, which is faster than 27% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.