{"slug":"preflight-ea6df45b","name":"Preflight","summary":"Call before installing packages suggested by a language model. Returns, for each npm or PyPI package name, whether it actually exists in the registry, whether it is deprecated or yanked, and — when the name is not found — the closest real package names. Catches hallucinated dependencies (slopsquatting) before an agent installs them. Never inspects package contents and never returns a safety verdict.","status":"live","indexable":true,"listed_since":"2026-10-25T17:50:21.066090Z","sources":[{"source":"x402_bazaar","external_id":"https://preflight402.com/v1/deps/check","owner_address":"0xb9db3966c7f18283624c97e860a84cef7f9ba607","seen_at":"2026-10-25T19:50:35.461438Z","removed_at":null}],"endpoints":[{"url":"https://preflight402.com/v1/deps/check","host":"preflight402.com","protocol":"x402","state":"live","last_probe_at":"2026-10-25T19:57:59.630732Z","last_ok_at":"2026-10-25T19:57:59.630732Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"preflight402-com-90739e71","name":"preflight402.com"}],"notice":"Not affiliated with addrbook — claim or request removal."}