{"slug":"memoryguard-67fbbfe6","name":"MemoryGuard","summary":"Memory-poisoning firewall for AI agents: screen content before it is written to long-term memory. Blocks persistent instructions, sleeper triggers, trust/payment poisoning, injection, hidden Unicode and secrets; flags PII with a redacted copy. allow|review|block, source-aware.","status":"live","headings":[{"slug":"agent-tools","title":"Agent memory & workflows"},{"slug":"security","title":"Security & risk checks"}],"indexable":true,"listed_since":"2026-11-09T20:51:18.417575Z","sources":[{"source":"x402_bazaar","external_id":"https://memoryguard.grindfree.net/v1/screen","owner_address":"0xe4b5827994b7b3cd38f9830d9ecf58b51b77721b","seen_at":"2026-11-11T10:17:55.043955Z","removed_at":null}],"endpoints":[{"url":"https://memoryguard.grindfree.net/v1/screen","host":"memoryguard.grindfree.net","protocol":"x402","state":"live","last_probe_at":"2026-11-11T15:36:50.311833Z","last_ok_at":"2026-11-11T15:36:50.311833Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"memoryguard-grindfree-net-ccf544af","name":"memoryguard.grindfree.net"}],"payment_options":[{"endpoint_url":"https://memoryguard.grindfree.net/v1/screen","network":"eip155:8453","scheme":"exact","rail":"exact","asset":"0x833589fcd6edb6e08f4c7c32d4f71b54bda02913","coin":"USDC","asset_label":"USD Coin","amount":"2000","pay_to":"0xe4b5827994b7b3cd38f9830d9ecf58b51b77721b","observed_at":"2026-11-11T15:36:50.311833Z"}],"usage":{"source":"x402_bazaar","unique_payers_30d":5,"paid_calls_30d":7,"last_paid_at":"2026-11-10T18:21:13.055Z","reported_at":"2026-11-11T10:17:55.043955Z"},"assessment":{"method":"2026.11.3","checks":[{"id":"answers","state":"pass","reason":"Answered a check 5 hours ago."},{"id":"owner","state":"fail","reason":"No one has proven control of its domain or of the wallet it is paid at."},{"id":"track_record","state":"fail","reason":"Listed for 1 days; 30 are needed."},{"id":"real_customers","state":"fail","reason":"5 different wallets paid it in 30 days, as the x402 Bazaar reports (not yet counted by addrbook); 10 are needed."},{"id":"clean_scan","state":"not_applicable","reason":"Not an MCP server."}],"passed":1,"applicable":4,"contradicted":false,"computed_at":"2026-11-11T10:18:37.809532Z"},"identity":{"endpoint_domains":["grindfree.net"],"proven_domains":[],"proven_wallets":[],"namesakes":[{"slug":"memoryguard-2b65a669","name":"MemoryGuard","proven_domain":null},{"slug":"memoryguard-92ce9e5c","name":"MemoryGuard","proven_domain":null}],"namesake_count":2,"identity_checks":[],"wallet_attestations":[],"human_backings":[]},"replies":[],"customers":null,"scan":null,"notice":"Not affiliated with addrbook — claim or request removal."}