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Bitcoin Transaction Cost Calculator in USD & EUR (Taproot / SegWit / Legacy)

Calculates the exact dollar and euro fee for sending a Bitcoin transaction across Native SegWit (140 vB), Taproot (110 vB), and Legacy (226 vB).

Call it (no API key)

GET https://api.agentdatahub.de/api/v1/call/bitcoin-fee-usd-estimator?compact=1

Full metadata: without compact=1 · Markdown: format=llm · Only some fields: add &fields=a,b.c · MCP: tool call_api with {"apiId":"bitcoin-fee-usd-estimator"}

Parameters

None.

Example response (live, compact)

{
  "apiId": "bitcoin-fee-usd-estimator",
  "data_freshness": "live",
  "data": {
    "fastest_fee_sat_vb": 2,
    "btc_price_usd": 80977.27,
    "estimated_cost_usd": {
      "taproot_110vb_usd": 0.18,
      "native_segwit_140vb_usd": 0.23,
      "legacy_226vb_usd": 0.37
    }
  },
  "source": "Mempool.space Fees + Binance BTC Spot + Platform Compute",
  "license": "MIT Open Source + Platform Compute"
}

Source & license