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Sato Hub: Build Onchain & Crypto Agents
ai.satohub/onchain-agents in the official MCP registry.
Endpoint https://satohub.ai/api/mcp. Source: github.com/satohubai/onchain-agents.
The registry describes it as: Build any crypto agent: stack picks, x402 and ERC-8004 lookups, wallet-key checks, unsigned swaps.
We read its 48 tools on 2026-10-22. Nothing in them matched our tool-poisoning rules. It also sets server instructions, text a client puts in front of the model on connect; those were read too.
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
onchain_agent_search_resources onchain_agent_get_resource search fetch onchain_agent_get_deploy_spec onchain_agent_recent_changes onchain_agent_list_categories onchain_agent_list_chains onchain_agent_get_news onchain_agent_get_metrics onchain_agent_get_wiki_page onchain_agent_search_agents onchain_agent_get_agent_passport onchain_agent_recommend_stack onchain_agent_list_wiki_pages onchain_agent_get_changes onchain_agent_get_agent_economy onchain_agent_search_skills onchain_agent_get_trend onchain_agent_compare_listings onchain_agent_explain_number onchain_agent_get_score_methodology onchain_agent_get_data_freshness onchain_agent_search_listings onchain_agent_inspect_listing onchain_agent_get_listing_history onchain_agent_preflight onchain_agent_check_install onchain_agent_scan_recipient onchain_agent_route_swap onchain_agent_route_agent onchain_agent_route_launch onchain_agent_build_plan onchain_agent_route_lp onchain_agent_create_agent onchain_agent_scaffold_plan onchain_agent_watch onchain_agent_submit_project onchain_agent_register_agent onchain_agent_join_passport onchain_agent_passport_action onchain_agent_swap onchain_agent_resolve_token onchain_agent_find_x402_service onchain_agent_get_sdk_lineage onchain_agent_get_contract_facts onchain_agent_get_chain_card onchain_agent_get_x402_facilitators
Run this server? Show the check in your README
The badge reflects the latest weekly read: 
[](https://lazaretto.dev/mcp-registry/ai-satohub-onchain-agents)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.