Bitcoin fee rates for next-block to economy confirmation, mempool congestion lev...

{ "method": "GET", "queryParams": { "vbytes": 141 }, "type": "http" }

{ "example": { "asOf": "2026-10-11T05:14:44.047Z", "backlogBlocks": 8, "congestion": "CLEAR", "cost": { "economy": { "sats": 141, "usd": 0.117 }, "fastest": { "sats": 282, "usd": 0.2339 }, "halfHour": { "sats": 141, "usd": 0.117 }, "hour": { "sats": 141, "usd": 0.117 } }, "degraded": false, "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.", "economySatPerVb": 1, "fastestSatPerVb": 2, "halfHourSatPerVb": 1, "hourSatPerVb": 1, "mempoolTxCount": 79793, "mempoolVsize": 40465808, "minimumSatPerVb": 1, "notChecked": [ "fee changes after this moment (blocks arrive randomly, about every 10 minutes)", "replace-by-fee or child-pays-for-parent strategies", "…1 more" ], "reasons": [ "Fees are at or near the floor: next-block inclusion costs little. A long backlog of very-low-fee transactions can still exist and does not affect you if you pay the next-block rate.", "79793 unconfirmed transactions, 40.5 MvB." ], "source": "mempool.space", "sourceUrl": "https://mempool.space", "summary": "Next-block fee 2 sat/vB (about 282 sats, $0.2339 for 141 vB); economy 1 sat/vB. Mempool: 8 blocks of backlog.", "vbytes": 141, "verdict": "CLEAR" }, "type": "json" }