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      "method": "GET",
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      "method": "GET",
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      "method": "POST",
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      "description": "Find the cheapest model with tools and 128k context, or any limits you set: ranks the 10 cheapest LLMs by blended price per million tokens."
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      "tool": "stackfacts_models_changes",
      "description": "List LLM models added, removed or changed (price per million tokens, context window, model deprecation date) since a snapshot_id."
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      "method": "GET",
      "tool": "stackfacts_cve_lookup",
      "description": "Get any CVE: its CISA KEV entry, if exploited, plus every OSV advisory aliased to it, with affected packages (purls), fixed versions and CVSS."
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      "method": "POST",
      "tool": "stackfacts_stack_watch",
      "description": "Check dependencies, runtimes and OS versions for what changed since your last call: EOL passed or near, new OSV advisories, new CISA KEV hits. Returns a token."
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  "ownershipProofs": [],
  "instructions": "Free samples: GET https://g5joilnmeep4ntz3nwezxt5dmu.srv.us/v1/try/eol, /v1/try/kev, /v1/try/models and /v1/{eol,kev,models}/preview. Prices: https://g5joilnmeep4ntz3nwezxt5dmu.srv.us/openapi.json (x-payment-info) and https://g5joilnmeep4ntz3nwezxt5dmu.srv.us/pricing.json. Pay with x402 v2 exact, USDC on Base; every paid route answers 402 with a PAYMENT-REQUIRED header on GET and POST.",
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  "name": "Stack Facts",
  "description": "Check a package before install: malware, known vulnerabilities (OSV), exploited CVEs (CISA KEV) and end-of-life, plus LLM prices; signed answers, pay per call in USDC, no account or API key.",
  "updated": "2026-10-12T09:00:35.912Z"
}