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Bitcoin Network Fee Estimator
x402
Bitcoin Network Fee Estimator is a paid API for AI agents from bitcoin-network.x402tookit.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-29).
Returns current Bitcoin fee rates (sat/vB) for fastest/half-hour/hour/economy confirmation tiers, mempool congestion level, and estimated USD/sats cost for a transaction of given size.
Price / call$0.03
Success—
StatusUnknown
How this service works
Bitcoin fee rates for next-block to economy confirmation, mempool congestion level and the cost of a typical transaction.
Output
Returns fee rates in sat/vB for four confirmation speed tiers (fastest, halfHour, hour, economy), estimated transaction cost in sats and USD for each tier, mempool congestion label, mempool vsize, mempool tx count, backlog block depth, a human-readable summary and verdict, data source URL, and a timestamp. Optionally scoped to a custom transaction size in vbytes (default 141).
Example use cases
Cheapest time to send Bitcoin
“Is the Bitcoin mempool backed up right now, and what's the economy fee rate in sats per vbyte if I'm okay waiting for a slower confirmation?”
Real-time fee for wallet transaction
“I'm about to send a Bitcoin transaction that's 250 vbytes — how much will it cost in sats and USD to get it confirmed in the next block versus within an hour?”
Mempool monitoring for trading bot
“Check the current Bitcoin mempool congestion level and give me the fastest and half-hour fee rates in sat/vB so I know how urgently to set fees on my next outgoing transaction.”
Technical details
Endpoint
GEThttps://bitcoin-network.x402tookit.com/btc-fee-estimate?utm_source=zero.xyzWhen to prefer
Use this endpoint when you need live, multi-tier Bitcoin fee estimates with both sat/vB rates and fiat USD costs in a single call, especially when you also need mempool congestion context. It is preferable over raw mempool.space or similar when you want a pre-interpreted verdict/summary alongside the numbers, and when you need cost estimates scoped to a specific transaction size in vbytes.
Side effects
- Upstream mempool data source unavailable — response may include degraded flag and reduced field set
- Invalid vbytes parameter type returns schema validation error
- Fee data may be stale if upstream provider is lagging — check asOf timestamp
- Network timeout if Bitcoin node or mempool API is temporarily unreachable
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Tags
x402
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