# checkMaliciousAddress

Check if an Ethereum address has been flagged as malicious in the ScamSniffer blacklist database. Returns whether the address is known to be associated with scams or exploits.

Agent View of the PolicyLayer registry record for `checkMaliciousAddress`. HTML page: https://policylayer.com/tools/nanidao-agentek/checkmaliciousaddress

## Facts

- Tool: `checkMaliciousAddress`
- Server: Agentek Eth (`nanidao/agentek`) — https://policylayer.com/tools/nanidao-agentek.md
- Homepage: https://github.com/NaniDAO/agentek
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "checkMaliciousAddress",
    "arguments": {}
  }
}
```

## Why checkMaliciousAddress is rated Low

This tool retrieves information from a blacklist database without modifying any state, executing code, or causing side effects. It is a pure read operation that queries an external data source (ScamSniffer blacklist) and returns results. While the information could inform security decisions, the tool itself performs no irreversible actions, financial transactions, or code execution.

From the tool's own definition: "Tool description states it 'Check[s] if an Ethereum address has been flagged' and 'Returns whether the address is known to be associated with scams'."

## Use case

AI agents call checkMaliciousAddress to retrieve information from Agentek Eth without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Agentek Eth:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "checkMaliciousAddress": {}
  }
}
```

## Other tools on Agentek Eth (192)

- `intentReverseSlowTransfer` — Destructive — https://policylayer.com/tools/nanidao-agentek/intentreverseslowtransfer.md
- `intentRevokeAllApprovals` — Destructive — https://policylayer.com/tools/nanidao-agentek/intentrevokeallapprovals.md
- `intentRevokeApproval` — Destructive — https://policylayer.com/tools/nanidao-agentek/intentrevokeapproval.md
- `generateAndPinImage` — Execute — https://policylayer.com/tools/nanidao-agentek/generateandpinimage.md
- `intentGovernorVote` — Execute — https://policylayer.com/tools/nanidao-agentek/intentgovernorvote.md
- `intentGovernorVoteWithReason` — Execute — https://policylayer.com/tools/nanidao-agentek/intentgovernorvotewithreason.md
- `intentSetPrimaryWNS` — Execute — https://policylayer.com/tools/nanidao-agentek/intentsetprimarywns.md
- `intentSetWNSAddr` — Execute — https://policylayer.com/tools/nanidao-agentek/intentsetwnsaddr.md
- `intentSwapSolana` — Execute — https://policylayer.com/tools/nanidao-agentek/intentswapsolana.md
- `intentVoteNaniProposal` — Execute — https://policylayer.com/tools/nanidao-agentek/intentvotenaniproposal.md
- `intentWriteContract` — Execute — https://policylayer.com/tools/nanidao-agentek/intentwritecontract.md
- `depositWETH` — Financial — https://policylayer.com/tools/nanidao-agentek/depositweth.md
- `intent0xSwap` — Financial — https://policylayer.com/tools/nanidao-agentek/intent0xswap.md
- `intentAaveBorrow` — Financial — https://policylayer.com/tools/nanidao-agentek/intentaaveborrow.md
- `intentAaveDeposit` — Financial — https://policylayer.com/tools/nanidao-agentek/intentaavedeposit.md
- `intentAaveRepay` — Financial — https://policylayer.com/tools/nanidao-agentek/intentaaverepay.md
- `intentAaveWithdraw` — Financial — https://policylayer.com/tools/nanidao-agentek/intentaavewithdraw.md
- `intentApprove` — Financial — https://policylayer.com/tools/nanidao-agentek/intentapprove.md
- `intentApproveSlowTransfer` — Financial — https://policylayer.com/tools/nanidao-agentek/intentapproveslowtransfer.md
- `intentCoinchanAirdrop` — Financial — https://policylayer.com/tools/nanidao-agentek/intentcoinchanairdrop.md
- `intentCoinchanClaimVested` — Financial — https://policylayer.com/tools/nanidao-agentek/intentcoinchanclaimvested.md
- `intentCoinchanMake` — Financial — https://policylayer.com/tools/nanidao-agentek/intentcoinchanmake.md
- `intentCoinchanMakeHold` — Financial — https://policylayer.com/tools/nanidao-agentek/intentcoinchanmakehold.md
- `intentCoinchanMakeLocked` — Financial — https://policylayer.com/tools/nanidao-agentek/intentcoinchanmakelocked.md
- `intentCollectFees` — Financial — https://policylayer.com/tools/nanidao-agentek/intentcollectfees.md
- `intentDecreaseLiquidity` — Financial — https://policylayer.com/tools/nanidao-agentek/intentdecreaseliquidity.md
- `intentDepositAcross` — Financial — https://policylayer.com/tools/nanidao-agentek/intentdepositacross.md
- `intentDepositToSlow` — Financial — https://policylayer.com/tools/nanidao-agentek/intentdeposittoslow.md
- `intentIncreaseLiquidity` — Financial — https://policylayer.com/tools/nanidao-agentek/intentincreaseliquidity.md
- `intentMintPosition` — Financial — https://policylayer.com/tools/nanidao-agentek/intentmintposition.md
- …and 162 more: https://policylayer.com/tools/nanidao-agentek.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=nanidao-agentek · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/nanidao-agentek