{"slug":"blackhull-agent-economy-intelligence-aa02b241","name":"Blackhull trading post: pre-trade checks for agents on Base","summary":"Before your agent buys a Base token: can it sell it back? Plus x402 service grades and providers.","status":"unreachable","headings":[{"slug":"stocks-investing","title":"Stocks & investing"}],"indexable":true,"listed_since":"2026-10-30T16:15:27.532132Z","sources":[{"source":"mcp_registry","external_id":"com.blackhullsystems/listening-post","owner_address":null,"seen_at":"2026-11-05T15:21:41.474283Z","removed_at":null}],"endpoints":[{"url":"https://blackhullsystems.com/mcp","host":"blackhullsystems.com","protocol":"mcp","state":"unreachable","last_probe_at":"2026-11-11T22:00:24.693856Z","last_ok_at":"2026-11-09T05:04:00.218029Z","tools_count":8,"tools_changed_at":"2026-11-06T15:14:10.753892Z","uptime_24h":0.0,"uptime_30d":0.75},{"url":"https://blackhullsystems.com/","host":"blackhullsystems.com","protocol":"web","state":"unreachable","last_probe_at":"2026-11-11T22:00:53.499094Z","last_ok_at":"2026-11-09T05:05:15.126110Z","tools_count":null,"tools_changed_at":null,"uptime_24h":0.0,"uptime_30d":0.75}],"also_listed_as":[],"payment_options":[],"usage":null,"assessment":{"method":"2026.11.4","checks":[{"id":"answers","state":"pass","reason":"Answered a check 2 days ago."},{"id":"owner","state":"pass","reason":"Control proven: blackhullsystems.com, proven to the MCP Registry."},{"id":"track_record","state":"fail","reason":"Listed for 12 days; 30 are needed."},{"id":"real_customers","state":"not_applicable","reason":"It does not sell over x402."},{"id":"clean_scan","state":"pass","reason":"None of the patterns addrbook looks for (hidden instructions, invisible characters) appeared in the 8 tools this server showed it."}],"passed":3,"applicable":4,"contradicted":false,"computed_at":"2026-11-12T00:21:41.914565Z"},"identity":{"endpoint_domains":["blackhullsystems.com"],"proven_domains":[{"domain":"blackhullsystems.com","proven_by":"mcp_registry","serves_endpoint":true,"as_of":"2026-11-05T15:21:41.474283Z"}],"proven_wallets":[],"namesakes":[],"namesake_count":0,"identity_checks":[],"wallet_attestations":[],"human_backings":[]},"replies":[],"customers":null,"scan":{"endpoint_url":"https://blackhullsystems.com/mcp","tools":8,"high":0,"medium":0,"findings":[],"observed_at":"2026-11-05T10:23:31.567107Z","evidence_id":3385618},"notice":"Not affiliated with addrbook — claim or request removal."}