curl -X POST https://win.oneshotagent.com/v1/tools/lookup/protein-sequence \
  -H "Content-Type: application/json" \
  -H "payment-signature: <base64 x402 payment>" \
  -d '{
    "accession": "P00001"
  }'

const response = await fetch("https://win.oneshotagent.com/v1/tools/lookup/protein-sequence", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "payment-signature": paymentProof,
  },
  body: JSON.stringify({
    "accession": "P00001"
  }),
});

const result = await agent.tool('lookup/protein-sequence', {
  accession: 'P00001'
});
console.log(result.data.result);
console.log(result.data.evidence);

{
  "success": true,
  "data": {
    "request_id": "uuid",
    "receipt_id": "rcpt_...",
    "status": "completed",
    "tool": "protein_sequence",
    "result": {
      "protein": null,
      "inactive": {
        "reason": "demerged",
        "replaced_by": [
          "P99999",
          "P99998"
        ]
      }
    },
    "evidence": {
      "source": "UniProt Consortium",
      "source_kind": "public",
      "retrieved_at": "2026-01-15T12:00:00.000Z",
      "calls": [
        {
          "retrieved_at": "2026-01-15T12:00:00.000Z"
        }
      ],
      "as_of": null
    }
  }
}