Bitcoin halving countdown: current block subsidy, blocks and estimated days to t...
https://saylorinnovations.com/api/explorer/bitcoin/halvingOverview
Bitcoin halving countdown: current block subsidy, blocks and estimated days to the next halving, plus coins mined and the share of 21 million.
Protocol
x402
Price
$0.01
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Saylor Innovations Data Desk
Source
bazaar
Indexed
2026-10-21 04:24:45
Health
Status
healthy
Latency (p50)
561ms
Uptime (30d)
100.0%
Reliability Score
90/100
Last Checked
2026-10-28 16:17:19
Last Healthy
2026-10-28 16:17:19
Consecutive Failures
0
x402 Payment Validation
Payment Requirements
Valid
Asset Verified
Known USDC
Facilitator
—
Input Schema
{
"method": "GET",
"type": "http"
}
Output Schema
{
"example": {
"bitcoin_mined_btc": 20101268.75,
"block_height": 972405,
"blocks_until_halving": 77595,
"chain": "bitcoin",
"current_subsidy_btc": 3.125,
"estimated_days_until_halving": 538.9,
"estimated_halving_date_10min_blocks": "2028-04-11T23:12:36.601Z",
"halving_era": 4,
"next_halving_height": 1050000,
"next_subsidy_btc": 1.5625,
"note": "The date assumes one block every 10 minutes; real block times drift, so treat it as an estimate that can be off by days. Coins mined is the sum of block subsidies up to the tip: it includes the unspendable genesis block and any subsidy miners chose not to claim, and ignores lost coins.",
"remaining_to_mine_btc": 898731.25,
"share_of_21m_mined_pct": 95.7203,
"source": "Bitcoin Core JSON-RPC (public node)"
},
"type": "json"
}
Recent Health Checks
| Time | Status | HTTP | Latency | Error |
|---|---|---|---|---|
| 2026-10-28 16:17:19 | healthy | 402 | 1076ms | |
| 2026-10-28 15:24:31 | healthy | 402 | 385ms | |
| 2026-10-28 14:19:08 | healthy | 402 | 4378ms | |
| 2026-10-28 07:04:37 | healthy | 402 | 403ms | |
| 2026-10-28 05:41:25 | healthy | 402 | 640ms | |
| 2026-10-28 04:43:27 | healthy | 402 | 1044ms | |
| 2026-10-28 03:49:33 | healthy | 402 | 374ms | |
| 2026-10-28 02:50:02 | healthy | 402 | 1234ms | |
| 2026-10-28 01:45:22 | healthy | 402 | 346ms | |
| 2026-10-28 00:39:05 | healthy | 402 | 3669ms | |
| 2026-10-27 23:42:45 | healthy | 402 | 561ms | |
| 2026-10-27 22:56:33 | healthy | 402 | 381ms | |
| 2026-10-27 21:45:42 | healthy | 402 | 597ms | |
| 2026-10-27 20:31:06 | healthy | 402 | 442ms | |
| 2026-10-27 19:25:46 | healthy | 402 | 346ms | |
| 2026-10-26 12:32:51 | healthy | 402 | 942ms | |
| 2026-10-26 05:59:10 | healthy | 402 | 414ms |