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ScriptMasterLabs BTC Mempool Fees API
x402
ScriptMasterLabs BTC Mempool Fees API is a paid API for AI agents from acp-x402-discovery.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).
Returns current Bitcoin mempool fee estimates (e.g. slow, standard, fast sat/vB rates) via a pay-per-call x402/USDC endpoint
Price / call$0.001
Success—
StatusUnknown
How this service works
Pay-per-call crypto, RWA, federal, SEC, and compliance APIs. Settled in USDC on Base via x402. Hyphen routes only (e.g. /x402/rwa-aggregates, /x402/gas-tracker).
Output
Returns current Bitcoin mempool fee estimates broken down by priority tier (slow, standard, fast), expressed in satoshis per virtual byte (sat/vB), reflecting real-time mempool congestion conditions. Response is a JSON object with fee rate data per confirmation speed tier.
Example use cases
Optimal BTC transaction fee selection
“What fee rate should I use for my Bitcoin transaction if I want it confirmed within the next block? Give me the current fast sat/vB rate from the mempool.”
Wallet fee suggestion feature
“Pull the current Bitcoin mempool fees for slow, standard, and fast confirmation tiers — I need to display these to users in my wallet app so they can choose their priority.”
Mempool congestion monitoring alert
“Check the Bitcoin mempool fee rates right now and let me know if the fast confirmation fee has spiked above 50 sat/vB — I want to know if the network is congested.”
Technical details
Endpoint
GEThttps://acp-x402-discovery.onrender.com/x402/btc-mempool-feesWhen to prefer
Choose this endpoint when you need real-time Bitcoin mempool fee estimates in a pay-per-call micro-payment model settled in USDC on Base via the x402 protocol. Prefer it in automated agent workflows that need on-demand BTC fee data without a subscription, or when integrating with x402-native payment infrastructure. Alternative free endpoints (mempool.space API, Blockstream) may be preferred for high-volume or unauthenticated use cases.
Side effects
- Payment failure: x402 USDC payment on Base not processed — endpoint returns 402 Payment Required
- Upstream mempool data source unavailable — may return 503 or empty/stale data
- Malformed or empty response body if the underlying mempool feed is down
- Rate limiting or provider outage on Render-hosted service causing timeouts
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"example": {}
}Tags
x402
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