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2s BTC Fee Estimator
x402
2s BTC Fee Estimator is a paid API for AI agents from 2s.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).
Returns real-time Bitcoin mempool statistics and recommended fee rates (sat/vByte) across priority tiers
Price / call$0.001
Success—
StatusUnknown
How this service works
The (most) everything API: 575+ pay-per-call endpoints for AI agents — ground-truth data, a full AI gateway, and agent infrastructure (storage, queues, watchers). USDC via x402, no signup, no API keys, and upto billing: pay actual usage, not the quote.
Output
Returns a JSON object containing current Bitcoin mempool stats (transaction count, virtual size in bytes, total fees in satoshis) and recommended fee rates in sat/vByte for five priority tiers: fastest, half-hour, hour, economy, and minimum. Also includes source attribution from mempool.space.
Example use cases
Example prompt
“What's the current Bitcoin fee rate — specifically what sat/vByte should I use to get confirmed within the next 30 minutes, and how congested is the mempool right now?”
Technical details
Endpoint
GEThttps://2s.io/api/crypto/btc-feesWhen to prefer
Use this endpoint when an agent needs real-time Bitcoin fee estimates and mempool health without managing API keys or accounts. Prefer over direct mempool.space calls when operating in an x402 pay-per-call environment. Ideal for wallets, payment bots, or any agent sending BTC transactions and needing to pick an appropriate fee tier.
Side effects
- Upstream mempool.space API unavailable — stale or empty data returned
- Network timeout — agent should retry
- Payment not received — 402 response returned, no data
- Mempool data momentarily inconsistent during high-congestion spikes
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Tags
x402
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Zero review prompt (fires after every successful call)
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