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Agent Data API
io.github.lx1112/agent-data-api in the official MCP registry.
Endpoint https://onchaincheck.dev/mcp.
The registry describes it as: Token risk, wallet profiles, OFAC screening, whale trades on 6 chains. x402, USDC per call.
We read its 68 tools on 2026-10-27. Nothing in them matched our tool-poisoning rules.
A clean read means these rules found nothing, not that the server is harmless. A server can change its tools at any time, which is why the index reads it again every week.
Tools it advertises
canada_sales_tax canada_business_days canada_statutory_holidays fx_ecb_rates fx_ecb_convert token_risk_check token_watchlist token_verdict deployer_record solana_token_snapshot solana_wallet address_sanctions_screen prepayment_safety_check prepayment_safety_check_lite company_jobs x402_ping base_token_snapshot base_wallet_balances base_transaction_summary base_gas_prices base_contract_info base_erc20_allowance base_nft_metadata base_large_trades base_new_pools base_wallet_profile base_resolve_basename eth_token_snapshot eth_wallet_balances eth_transaction_summary eth_gas_prices eth_contract_info eth_erc20_allowance eth_nft_metadata eth_large_trades eth_new_pools eth_wallet_profile eth_resolve_ens arbitrum_token_snapshot arbitrum_wallet_balances arbitrum_transaction_summary arbitrum_gas_prices arbitrum_contract_info arbitrum_erc20_allowance arbitrum_nft_metadata arbitrum_large_trades arbitrum_new_pools arbitrum_wallet_profile optimism_token_snapshot optimism_wallet_balances optimism_transaction_summary optimism_gas_prices optimism_contract_info optimism_erc20_allowance optimism_nft_metadata optimism_large_trades optimism_new_pools optimism_wallet_profile polygon_token_snapshot polygon_wallet_balances and 8 more
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[](https://lazaretto.dev/mcp-registry/io-github-lx1112-agent-data-api)How this was checked
Lazaretto connects to the endpoint the way any MCP client does, asks the server to introduce itself and list its tools, and reads every name, description, parameter schema and server instruction for tool poisoning: hidden directive blocks, orders to read local secrets, parameters built to carry secrets or the conversation out, orders that redirect another server's tools, and invisible characters. It never calls a tool. What we found across the registry.
To run the same check every time Claude Code adds a server, install the free lazaretto-guard plugin. Browse every server in the index.
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