Btc Fees

Current Bitcoin network fee rates and mempool backlog from mempool.space.

Overview

Current Bitcoin network fee rates and mempool backlog from mempool.space. Returns recommended fee rates in satoshis per virtual byte for target confirmation speeds (fastest ~next block, half-hour, hour, economy, minimum) plus the current mempool size (transaction count, total vsize, total fees waiting). Keyless, live. The BTC counterpart to crypto.gas-oracle (Ethereum) — fresh, fast-moving network state an agent cannot recall, for wallets, payment timing, and fee estimation.

Endpoint

Method	Endpoint	Price	Description
GET	/v1/marketplace/api/btc-fees	$0.00115	Invoke Btc Fees (Blockchain) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://api.jarvisclaw.ai/v1/marketplace/api/btc-fees

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://api.jarvisclaw.ai/v1/marketplace/api/btc-fees

Open in the marketplace