Anthropic Model Deprecation & EOL Lifecycle Hub

Run this zero-key curl + jq check in CI pipelines to block deprecated or retired Anthropic model IDs against GET /api/v1/eol.json, or subscribe via RSS, Atom, and iCal.

curl -fsSL https://eol.codeap.com/api/v1/eol.json | jq -e \
  --arg prov "anthropic" \
  --arg models "claude-sonnet-4-5-20250929,claude-mythos-preview" '
    ($models | split(",") | map(ascii_downcase)) as $targets
    | [.models[]
       | select(.providerKey == $prov)
       | select((.modelId | ascii_downcase) as $id | $targets | index($id))
       | select(.status == "deprecated" or .status == "retired")]
    | if length > 0 then
        (map("BLOCKED: \(.provider) \(.modelId) [\(.status | ascii_upcase)] EOL=\(.eolDate // "n/a") -> \(.replacementModel // "none")") | .[] | stderr), halt_error(1)
      else "PASS: zero deprecated/retired " + $prov + " models." end
  '

4. Anthropic Deprecation & Migration FAQ