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GET /v1/block

A block by height: hash, timestamp, tx count, reward pool

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

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

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Code snippets

curl "https://api.oanor.com/arweave-api/v1/block" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/arweave-api/v1/block", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/arweave-api/v1/block");
curl_setopt($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/arweave-api/v1/block",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

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

{
    "data": {
        "note": "An Arweave block by height: its independent hash, previous block, timestamp, transaction count, the miner reward pool (in AR) and the weave size. Omit height for the current tip block.",
        "miner": "DKx8gTUSInnXbnpaAb_nfvRlYva_Lts7pmDpjTwfRMs",
        "height": 1938430,
        "source": "Arweave gateway",
        "tx_count": 6,
        "timestamp": 1781426341,
        "block_size": 1572864,
        "indep_hash": "WYzszhn4Ve6YN9JSachqUCJmzBniMeE-vFX2XMuLHxUKqNvlbUlB12QLhSYgiHag",
        "weave_size": 388289100554486,
        "previous_block": "PBJw4xXF37XzO2iUx-acHjh313A0pcTf1ZWG8anFPj3Y9K6vEE2EEBp1iFEAL9Jz",
        "reward_pool_ar": 335632.76091313,
        "reward_pool_winston": "335632760913125483"
    },
    "meta": {
        "timestamp": "2026-06-14T17:04:34.718Z",
        "request_id": "cc86a589-ed83-4d40-ac50-b44a4ced3197"
    },
    "status": "ok",
    "message": "Block retrieved successfully",
    "success": true
}