Fetch vectors by metadata

# To get the unique host for an index,
# see https://docs.pinecone.io/guides/manage-data/target-an-index
PINECONE_API_KEY="YOUR_API_KEY"
INDEX_HOST="INDEX_HOST"

curl -X POST "https://$INDEX_HOST/vectors/fetch_by_metadata" \
  -H "Api-Key: $PINECONE_API_KEY" \
  -H "Content-Type: application/json" \
  -H "X-Pinecone-Api-Version: 2025-10" \
  -d '{
    "namespace": "__default__",
    "filter": {"genre": {"$eq": "Action/Adventure"}},
    "limit": 2
  }'

{
  "vectors": {
    "0": {
      "id": "0",
      "values": [
        0.0234527588, 0.0291595459 ...
      ],
      "metadata": {
        "box-office": 2923706026,
        "genre": "Action/Adventure",
        "summary": "On the alien world of Pandora, paraplegic Marine Jake Sully uses an avatar to walk again and becomes torn between his mission and protecting the planet's indigenous Na'vi people. The film stars Sam Worthington, Zoe Saldana, and Sigourney Weaver.",
        "title": "Avatar",
        "year": 2009
      }
    },
    "1": {
      "id": "1",
      "values": [
        0.0397644043, 0.013053894, ...
      ],
      "metadata": {
        "box-office": 2799439100,
        "genre": "Action/Adventure",
        "summary": "In the aftermath of Thanos wiping out half of the universe, the remaining Avengers assemble once more to undo the chaos, leading to a time-traveling adventure. Stars Robert Downey Jr., Chris Evans, and Scarlett Johansson.",
        "title": "Avengers: Endgame",
        "year": 2019
      }
    }
  },
  "namespace": "__default__",
  "usage": {
    "readUnits": 1
  },
  "pagination": {
    "next": "Tm90aGluZyB0byBzZWUgaGVyZQo="
  }
}