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GET /v1/meta

Usage notes

Try it live

10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/uniprot-api

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Code snippets

curl "https://api.oanor.com/uniprot-api/v1/meta" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/uniprot-api/v1/meta", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/uniprot-api/v1/meta");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/uniprot-api/v1/meta",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "note": "The UniProt protein knowledge base. /v1/protein?id=P01308 = a full UniProtKB entry (protein & gene names, organism, length, mass, function, keywords, GO terms, PDB structures, reviewed/Swiss-Prot flag); /v1/search?query=insulin&organism=9606&reviewed=true = full-text protein search (organism = NCBI taxon id); /v1/sequence?id=P01308 = the amino-acid sequence plus FASTA, mass & CRC64; /v1/features?id=P01308 = sequence features (signal peptides, chains, domains, active/binding sites, modified residues, natural variants…) with a by-type breakdown (filter type=Domain); /v1/taxonomy?id=9606 (or name=Escherichia coli) = an NCBI taxonomy node with lineage; /v1/proteome?organism=9606 (or id=UP000005640) = reference proteomes with protein counts & genome assembly. Accessions look like P01308 or A0A0C5B5G6. Curated by EMBL-EBI, SIB & PIR.",
        "source": "UniProt REST API (rest.uniprot.org) — UniProtKB, taxonomy & proteomes",
        "endpoints": [
            "/v1/protein",
            "/v1/search",
            "/v1/sequence",
            "/v1/features",
            "/v1/taxonomy",
            "/v1/proteome",
            "/v1/meta"
        ]
    },
    "meta": {
        "timestamp": "2026-06-01T00:03:28.826Z",
        "request_id": "878be616-84e1-4954-a5f2-eb07d182d746"
    },
    "status": "ok",
    "message": "Meta retrieved",
    "success": true
}