# check_nft_ownership Check if an address owns a specific NFT Agent View of the PolicyLayer registry record for `check_nft_ownership`. HTML page: https://policylayer.com/tools/chulanpro5-evm-mcp-server/check-nft-ownership ## Facts - Tool: `check_nft_ownership` - Server: EVM MCP Server (`chulanpro5/evm-mcp-server`) — https://policylayer.com/tools/chulanpro5-evm-mcp-server.md - Homepage: https://github.com/chulanpro5/evm-mcp-server - 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": "check_nft_ownership", "arguments": {} } } ``` ## Why check_nft_ownership is rated Low This tool queries blockchain state to determine NFT ownership—a read operation with no side effects. It retrieves data but does not create, modify, delete, or execute transactions. The sibling tools show financial and destructive operations (buy_usdt_from_wallet, deploy_token, add_liquidity), making this tool's read-only nature clear by contrast. No blast radius from misuse beyond information disclosure. From the tool's own definition: "Tool name is 'check_nft_ownership' with description 'Check if an address owns a specific NFT'. The verb 'check' and 'owns' indicate a read-only query operation that retrieves ownership information without modifying state." ## Use case AI agents call check_nft_ownership to retrieve information from EVM MCP Server 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 EVM MCP Server: ```json { "version": "1", "default": "deny", "tools": { "check_nft_ownership": {} } } ``` ## Other tools on EVM MCP Server (35) - `deploy_token` — Execute — https://policylayer.com/tools/chulanpro5-evm-mcp-server/deploy-token.md - `enable_trading` — Execute — https://policylayer.com/tools/chulanpro5-evm-mcp-server/enable-trading.md - `set_swap_and_liquify_enabled` — Execute — https://policylayer.com/tools/chulanpro5-evm-mcp-server/set-swap-and-liquify-enabled.md - `write_contract` — Execute — https://policylayer.com/tools/chulanpro5-evm-mcp-server/write-contract.md - `add_liquidity` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/add-liquidity.md - `buy_usdt_from_wallet` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/buy-usdt-from-wallet.md - `deploy_tax_token` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/deploy-tax-token.md - `lock_lp_token` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/lock-lp-token.md - `sell_usdt_from_wallet` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/sell-usdt-from-wallet.md - `transfer_erc1155` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/transfer-erc1155.md - `transfer_erc20` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/transfer-erc20.md - `transfer_eth` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/transfer-eth.md - `transfer_nft` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/transfer-nft.md - `transfer_token` — Financial — https://policylayer.com/tools/chulanpro5-evm-mcp-server/transfer-token.md - `estimate_gas` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/estimate-gas.md - `get_address_from_private_key` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-address-from-private-key.md - `get_balance` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-balance.md - `get_block_by_number` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-block-by-number.md - `get_chain_info` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-chain-info.md - `get_erc1155_balance` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-erc1155-balance.md - `get_erc1155_token_uri` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-erc1155-token-uri.md - `get_erc20_balance` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-erc20-balance.md - `get_latest_block` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-latest-block.md - `get_nft_balance` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-nft-balance.md - `get_nft_info` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-nft-info.md - `get_supported_networks` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-supported-networks.md - `get_token_balance` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-token-balance.md - `get_token_balance_erc20` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-token-balance-erc20.md - `get_token_info` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-token-info.md - `get_transaction` — Read — https://policylayer.com/tools/chulanpro5-evm-mcp-server/get-transaction.md - …and 5 more: https://policylayer.com/tools/chulanpro5-evm-mcp-server.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=chulanpro5-evm-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/chulanpro5-evm-mcp-server