Every API, one clean contract.

Any URL → final_url, cleaned_url (tracking stripped), domain, entity_type{value,confidence,source}, platform, recommended{engine,action,params} (the Reef deep-fetch card; web-extract fallback for unknown hosts), tracking{affiliate,stripped_params}.

{
  "url": "https://www.amazon.com/dp/B08N5WRWNW?tag=aff-20&utm_source=x"
}

Any URL → a light entity CARD (NOT a deep fetch): title/name, image, description, price?, author?, published_at?, site_name — /OpenGraph-first, for previews + routing decisions. Use the recommended{} engine from classify for the full record.

{
  "url": "https://github.com/torvalds/linux"
}

Classify up to 20 URLs in one call (the link-list cleanup + routing use-case): per-URL ok/error, each independently resolved + classified.

{
  "urls": [
    "https://x0.example",
    "https://x1.example",
    "https://x2.example",
    "https://x3.example",
    "https://x4.example",
    "https://x5.example",
    "https://x6.example",
    "https://x7.example",
    "https://x8.example",
    "https://x9.example",
    "https://x10.example",
    "https://x11.example",
    "https://x12.example",
    "https://x13.example",
    "https://x14.example",
    "https://x15.example",
    "https://x16.example",
    "https://x17.example",
    "https://x18.example",
    "https://x19.example",
    "https://x20.example"
  ]
}

META (no network): given a known platform name OR a URL's host, return which Reef engine+action handles it and the param key it needs — the routing table itself (url-resolver marketplace engine_hints + the non-marketplace platform map). For agents discovering 'which engine for X'.

{
  "platform": "instagram"
}