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Bitcoin Fee Estimate Mempool
x402
Bitcoin Fee Estimate Mempool is a paid API for AI agents from agentsvc.io, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-16).
Returns current Bitcoin fee rates (sat/vB) for next block through economy, typical USD payment cost, mempool size, block tip height, next difficulty adjustment, and BTC price in USD/EUR.
Price / call$0.002
Success—
StatusUnknown
How this service works
Bitcoin fees right now: recommended sat/vB for the next block, 30 minutes, 1 hour and economy, what a typical payment costs in USD, mempool size, tip height, next difficulty adjustment and the BTC price in USD and EUR. Call before sending a Bitcoin transaction.
Output
Returns a JSON object with: recommended fee rates in sat/vB for next-block, ~30 minutes, ~1 hour, and economy tiers; estimated USD cost of a typical payment at each tier; current mempool size; latest block height; next difficulty adjustment info; and the current BTC price in both USD and EUR.
Example use cases
Pre-send fee check for Bitcoin wallet
“I'm about to send some Bitcoin — what's the current recommended sat/vB fee to get confirmed in the next block, and what will a typical payment cost in USD?”
Economy fee for non-urgent BTC transfer
“I want to send Bitcoin but I'm not in a rush — what's the economy fee rate right now and roughly how much cheaper is it compared to the next-block rate?”
Mempool congestion monitoring for trading bot
“Check the current Bitcoin mempool conditions for me: how big is the mempool, what's the tip block height, when is the next difficulty adjustment, and what's BTC trading at in USD right now?”
Technical details
Endpoint
POSThttps://agentsvc.io/api/v1/proxy/btc-fees?utm_source=zero.xyzWhen to prefer
Use this endpoint when an agent needs to make a fee decision before broadcasting a Bitcoin transaction, monitor network congestion in real time, or surface BTC pricing and mempool stats to a user. It consolidates fee tiers, USD cost estimates, mempool size, difficulty adjustment, and BTC price in a single call, avoiding the need to query multiple Bitcoin data sources separately.
Side effects
- Upstream mempool data source unavailable — returns error or stale data
- Network timeout if Bitcoin node or data provider is temporarily unreachable
- Malformed request body causes 400-level error
- x402 payment failure if USDC balance or payment header is missing/invalid
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"data": {},
"success": true
}
}Tags
x402
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