17 Services from api.nativebtc.org

Returns a tiered fee ladder (cheap/normal/urgent) with sat/vbyte estimates and block targets from Core v31 optimizer cache

Fetches Bitcoin transaction details — fee, vsize, and fee rate — via a REST endpoint styled for Ethereum JSON-RPC consumers.

Returns recommended Bitcoin fee rates (sat/vB) and fee histogram data for a specified confirmation target window

Returns a Replace-By-Fee (RBF) bump plan for an unconfirmed Bitcoin transaction, including current and target fee amounts needed to reach a desired confirmation block target.

Returns an optimized, fee-maximizing ordered list of up to 4,000 transaction IDs for a Bitcoin block template, with fee uplift metrics and Ed25519 receipt metadata for Stratum V2 Job Declaration workflows.

Returns a Bitcoin fee estimate in sat/vB for a given confirmation target (in blocks), sourced from Bitcoin Core's estimatesmartfee.

Fetches Bitcoin mempool details for a specific transaction by txid, returning virtual size, fee rate, and RBF replaceability status.

Returns the current Bitcoin blockchain block height as both a hex string and decimal integer

Returns the unspent transaction outputs (UTXOs) for a given Bitcoin address, paid via x402 micropayment.

Returns RBF (Replace-By-Fee) replacement history and status for a specific Bitcoin transaction by txid

Retrieves the current Bitcoin balance for a given on-chain address, returned in satoshis

Translates Ethereum-style JSON-RPC requests into Bitcoin blockchain data, fee estimates, mempool insights, and Bitcoin Core v31 package signals.

Returns current Bitcoin mempool statistics including size, fee estimates by time horizon, RBF status, and network congestion level.

Checks whether a Bitcoin transaction is included in Bitcoin Core v31's baseline or optimized fee-estimation templates for a given block-confirmation target

Analyzes a Bitcoin transaction to produce a fee verdict, current mempool state, RBF bump plan, and Bitcoin Core v31 block template compatibility check.

Issues a short-lived WebSocket authentication ticket granting access to the live Bitcoin mempool data stream.

Checks whether a batch of Bitcoin transaction IDs are included in the Core v31 optimized mempool template, given a target block confirmation window.