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Bitcoin recommended fees

chain.openverbs.com · x402

Live recommended Bitcoin transaction fee rates (in sat/vB) for next-block, ~30-minute, ~1-hour, economy and minimum confirmation targets, straight from the mempool. Also estimates the total fee (in sats and BTC) for a transaction of the given virtual size, so an agent can pick a fee tier and know the cost before broadcasting.
Name and description as published by x402 Bazaar

Live

Last successful check: 26 Oct 2026, 07:37 UTC.

answered, last 24 hours
100%
answered, last 30 days
100%
How addrbook checks →

Connect

https://chain.openverbs.com/v1/btc-fees

x402: an unpaid request gets a 402 with the price and pay-to wallet. addrbook never pays.

Who's behind it

Listed by
  • x402 Bazaarlast seen UTC
Wallets named
  • 0xb3f4de103f34b99f0da19b4f16d6b53a14c2194anamed by x402 Bazaar
Listed since

Payments

different wallets paid it, last 30 days
3
paid calls, last 30 days
3
last paid call (UTC)

As the x402 Bazaar reports, from payments Coinbase's facilitator settled. Read . addrbook has not counted these payments itself.

How it asks to be paid

NetworkPricePaid inSettled byPays to
Base$0.006USDCPer request0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a

From its own 402 answer at UTC. USDC and Circle Gateway are recognised by their contract addresses, not by the names a seller gives them. How payments are read

Checks by endpoint

HostProtocolStateLast checked (UTC)Last answered (UTC)24 hours30 daysTools
chain.openverbs.comx402Live100%100%—

Also listed as

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