.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.49.3. .TH BITCOIN-QT "1" "March 2025" "bitcoin-qt v28.1.0" "User Commands" .SH NAME bitcoin-qt \- manual page for bitcoin-qt v28.1.0 .SH SYNOPSIS .B bitcoin-qt [\fI\,options\/\fR] [\fI\,URI\/\fR] .SH DESCRIPTION Bitcoin Knots version v28.1.0 .PP The bitcoin\-qt application provides a graphical interface for interacting with Bitcoin Knots. .PP It combines the core functionalities of bitcoind with a user\-friendly interface for wallet management, transaction history, and network statistics. .PP It is suitable for users who prefer a graphical over a command\-line interface. .PP You can optionally specify a payment [URI], in e.g. the BIP20 or BIP21 URI formats. .SH OPTIONS .HP \-? .IP Print this help message and exit .HP \fB\-alertnotify=\fR .IP Execute command when an alert is raised (%s in cmd is replaced by message) .HP \fB\-allowignoredconf\fR .IP For backwards compatibility, treat an unused bitcoin.conf file in the datadir as a warning, not an error. .HP \fB\-assumevalid=\fR .IP If this block is in the chain assume that it and its ancestors are valid and potentially skip their script verification (0 to verify all, default: 000000000000000000006e926737e6a349f7581525ad36e743dfe5f4bc3abbb7, testnet3: 000000000000000465b1a66c9f386308e8c75acef9201f3f577811da09fc90ad, testnet4: 000000005be348057db991fa5d89fe7c4695b667cfb311391a8db374b6f681fd, signet: 0000014aad1d58dddcb964dd749b073374c6306e716b22f573a2efe68d414539) .HP \fB\-blockfilterindex=\fR .IP Maintain an index of compact filters by block (default: 0, values: basic, v0). If is not supplied or if = 1, certain indexes are enabled (currently just basic). .HP \fB\-blocknotify=\fR .IP Execute command when the best block changes (%s in cmd is replaced by block hash) .HP \fB\-blockreconstructionextratxn=\fR .IP Extra transactions to keep in memory for compact block reconstructions (default: 100) .HP \fB\-blocksdir=\fR .IP Specify directory to hold blocks subdirectory for *.dat files (default: ) .HP \fB\-blocksonly\fR .IP Whether to reject transactions from network peers. Disables automatic broadcast and rebroadcast of transactions, unless the source peer has the 'forcerelay' permission. RPC transactions are not affected. (default: 0) .HP \fB\-blocksxor\fR .IP Whether an XOR\-key applies to blocksdir *.dat files. The created XOR\-key will be zeros for an existing blocksdir or when `\-blocksxor=0` is set, and random for a freshly initialized blocksdir. (default: 1) .HP \fB\-coinstatsindex\fR .IP Maintain coinstats index used by the gettxoutsetinfo RPC (default: 0) .HP \fB\-conf=\fR .IP Specify path to read\-only configuration file. Relative paths will be prefixed by datadir location (only useable from command line, not configuration file) (default: bitcoin.conf) .HP \fB\-confrw=\fR .IP Specify read/write configuration file. Relative paths will be prefixed by the network\-specific datadir location (default: bitcoin_rw.conf) .HP \fB\-corepolicy\fR .IP Use Bitcoin Core policy defaults (default: 0) .HP \fB\-daemon\fR .IP Run in the background as a daemon and accept commands (default: 0) .HP \fB\-daemonwait\fR .IP Wait for initialization to be finished before exiting. This implies \fB\-daemon\fR (default: 0) .HP \fB\-datadir=\fR .IP Specify data directory .HP \fB\-dbcache=\fR .IP Maximum database cache size MiB (4 to 1048576, default: 450). In addition, unused mempool memory is shared for this cache (see \fB\-maxmempool\fR). .HP \fB\-debuglogfile=\fR .IP Specify location of debug log file (default: debug.log). Relative paths will be prefixed by a net\-specific datadir location. Pass \fB\-nodebuglogfile\fR to disable writing the log to a file. .HP \fB\-includeconf=\fR .IP Specify additional configuration file, relative to the \fB\-datadir\fR path (only useable from configuration file, not command line) .HP \fB\-loadblock=\fR .IP Imports blocks from external file on startup .HP \fB\-lowmem=\fR .IP If system available memory falls below MiB, flush caches (0 to disable, default: 10) .HP \fB\-maxmempool=\fR .IP Keep the transaction memory pool below megabytes (default: 300) .HP \fB\-maxorphantx=\fR .IP Keep at most unconnectable transactions in memory (default: 100) .HP \fB\-mempoolexpiry=\fR .IP Do not keep transactions in the mempool longer than hours (default: 336) .HP \fB\-par=\fR .IP Set the number of script verification threads (0 = auto, up to 15, <0 = leave that many cores free, default: 0) .HP \fB\-persistmempool\fR .IP Whether to save the mempool on shutdown and load on restart (default: 1) .HP \fB\-persistmempoolv1\fR .IP Whether a mempool.dat file created by \fB\-persistmempool\fR or the savemempool RPC will be written in the legacy format (version 1) or the current format (version 2). This temporary option will be removed in the future. (default: 0) .HP \fB\-pid=\fR .IP Specify pid file. Relative paths will be prefixed by a net\-specific datadir location. (default: bitcoind.pid) .HP \fB\-prune=\fR .IP Reduce storage requirements by enabling pruning (deleting) of old blocks. This allows the pruneblockchain RPC to be called to delete specific blocks and enables automatic pruning of old blocks if a target size in MiB is provided. This mode is incompatible with \fB\-txindex\fR. Warning: Reverting this setting requires re\-downloading the entire blockchain. (default: 0 = disable pruning blocks, 1 = allow manual pruning via RPC, >=550 = automatically prune block files to stay under the specified target size in MiB) .HP \fB\-pruneduringinit\fR .IP Temporarily adjusts the \fB\-prune\fR setting until initial sync completes. Ignored if pruning is disabled. (default: \fB\-1\fR = same value as \fB\-prune\fR) .HP \fB\-reindex\fR .IP If enabled, wipe chain state and block index, and rebuild them from blk*.dat files on disk. Also wipe and rebuild other optional indexes that are active. If an assumeutxo snapshot was loaded, its chainstate will be wiped as well. The snapshot can then be reloaded via RPC. Setting this to auto automatically reindexes the block database if it is corrupted. .HP \fB\-reindex\-chainstate\fR .IP If enabled, wipe chain state, and rebuild it from blk*.dat files on disk. If an assumeutxo snapshot was loaded, its chainstate will be wiped as well. The snapshot can then be reloaded via RPC. .HP \fB\-settings=\fR .IP Specify path to dynamic settings data file. Can be disabled with \fB\-nosettings\fR. File is written at runtime and not meant to be edited by users (use bitcoin.conf instead for custom settings). Relative paths will be prefixed by datadir location. (default: settings.json) .HP \fB\-shutdownnotify=\fR .IP Execute command immediately before beginning shutdown. The need for shutdown may be urgent, so be careful not to delay it long (if the command doesn't require interaction with the server, consider having it fork into the background). .HP \fB\-startupnotify=\fR .IP Execute command on startup. .HP \fB\-txindex\fR .IP Maintain a full transaction index, used by the getrawtransaction rpc call (default: 0) .HP \fB\-version\fR .IP Print version and exit .PP Connection options: .HP \fB\-addnode=\fR .IP Add a node to connect to and attempt to keep the connection open (see the addnode RPC help for more info). This option can be specified multiple times to add multiple nodes; connections are limited to 8 at a time and are counted separately from the \fB\-maxconnections\fR limit. .HP \fB\-asmap=\fR .IP Specify asn mapping used for bucketing of the peers (default: ip_asn.map). Relative paths will be prefixed by the net\-specific datadir location. .HP \fB\-bantime=\fR .IP Default duration (in seconds) of manually configured bans (default: 86400) .HP \fB\-bind=\fR[:][=onion] .IP Bind to given address and always listen on it (default: 0.0.0.0). Use [host]:port notation for IPv6. Append =onion to tag any incoming connections to that address and port as incoming Tor connections (default: 127.0.0.1:8334=onion, testnet3: 127.0.0.1:18334=onion, testnet4: 127.0.0.1:48334=onion, signet: 127.0.0.1:38334=onion, regtest: 127.0.0.1:18445=onion) .HP \fB\-cjdnsreachable\fR .IP If set, then this host is configured for CJDNS (connecting to fc00::/8 addresses would lead us to the CJDNS network, see doc/cjdns.md) (default: 0) .HP \fB\-connect=\fR .IP Connect only to the specified node; \fB\-noconnect\fR disables automatic connections (the rules for this peer are the same as for \fB\-addnode\fR). This option can be specified multiple times to connect to multiple nodes. .HP \fB\-discover\fR .IP Discover own IP addresses (default: 1 when listening and no \fB\-externalip\fR or \fB\-proxy\fR) .HP \fB\-dns\fR .IP Allow DNS lookups for \fB\-addnode\fR, \fB\-seednode\fR and \fB\-connect\fR (default: 1) .HP \fB\-dnsseed\fR .IP Query for peer addresses via DNS lookup, if low on addresses (default: 1 unless \fB\-connect\fR used or \fB\-maxconnections\fR=\fI\,0\/\fR) .HP \fB\-externalip=\fR .IP Specify your own public address .HP \fB\-fixedseeds\fR .IP Allow fixed seeds if DNS seeds don't provide peers (default: 1) .HP \fB\-forcednsseed\fR .IP Always query for peer addresses via DNS lookup (default: 0) .HP \fB\-i2pacceptincoming\fR .IP Whether to accept inbound I2P connections (default: 1). Ignored if \fB\-i2psam\fR is not set. Listening for inbound I2P connections is done through the SAM proxy, not by binding to a local address and port. .HP \fB\-i2psam=\fR .IP I2P SAM proxy to reach I2P peers and accept I2P connections (default: none) .HP \fB\-listen\fR .IP Accept connections from outside (default: 1 if no \fB\-proxy\fR, \fB\-connect\fR or \fB\-maxconnections\fR=\fI\,0\/\fR) .HP \fB\-listenonion\fR .IP Automatically create Tor onion service (default: 1) .HP \fB\-maxconnections=\fR .IP Maintain at most automatic connections to peers (default: 125). This limit does not apply to connections manually added via \fB\-addnode\fR or the addnode RPC, which have a separate limit of 8. .HP \fB\-maxreceivebuffer=\fR .IP Maximum per\-connection receive buffer, *1000 bytes (default: 5000) .HP \fB\-maxsendbuffer=\fR .IP Maximum per\-connection memory usage for the send buffer, *1000 bytes (default: 1000) .HP \fB\-maxuploadtarget=\fR .IP Tries to keep outbound traffic under the given target per 24h. Limit does not apply to peers with 'download' permission or blocks created within past week. 0 = no limit (default: 0M). Optional suffix units [k|K|m|M|g|G|t|T] (default: M). Lowercase is 1000 base while uppercase is 1024 base .HP \fB\-natpmp\fR .IP Use NAT\-PMP to map the listening port (default: 0) .HP \fB\-networkactive\fR .IP Enable all P2P network activity (default: 1). Can be changed by the setnetworkactive RPC command .HP \fB\-onion=\fR .IP Use separate SOCKS5 proxy to reach peers via Tor onion services, set \fB\-noonion\fR to disable (default: \fB\-proxy\fR). May be a local file path prefixed with 'unix:'. .HP \fB\-onlynet=\fR .IP Make automatic outbound connections only to network (ipv4, ipv6, onion, i2p, cjdns). Inbound and manual connections are not affected by this option. It can be specified multiple times to allow multiple networks. .HP \fB\-peerblockfilters\fR .IP Serve compact block filters to peers per BIP 157 (default: 0) .HP \fB\-peerbloomfilters\fR .IP Support filtering of blocks and transaction with bloom filters (default: 1) .HP \fB\-port=\fR .IP Listen for connections on (default: 8333, testnet3: 18333, testnet4: 48333, signet: 38333, regtest: 18444). Not relevant for I2P (see doc/i2p.md). If set to a value x, the default onion listening port will be set to x+1. .HP \fB\-proxy=\fR .IP Connect through SOCKS5 proxy, set \fB\-noproxy\fR to disable (default: disabled). May be a local file path prefixed with 'unix:' if the proxy supports it. .HP \fB\-proxyrandomize\fR .IP Randomize credentials for every proxy connection. This enables Tor stream isolation (default: 1) .HP \fB\-seednode=\fR .IP Connect to a node to retrieve peer addresses, and disconnect. This option can be specified multiple times to connect to multiple nodes. During startup, seednodes will be tried before dnsseeds. .HP \fB\-timeout=\fR .IP Specify socket connection timeout in milliseconds. If an initial attempt to connect is unsuccessful after this amount of time, drop it (minimum: 1, default: 5000) .HP \fB\-torcontrol=\fR: .IP Tor control host and port to use if onion listening enabled (default: 127.0.0.1:9051). If no port is specified, the default port of 9051 will be used. .HP \fB\-torpassword=\fR .IP Tor control port password (default: empty) .HP \fB\-uaappend=\fR .IP Append literal to the user agent string (should only be used for software embedding) .HP \fB\-upnp\fR .IP Use UPnP to map the listening port (default: 0) .HP \fB\-v2transport\fR .IP Support v2 transport (default: 1) .HP \fB\-whitebind=\fR<[permissions@]addr> .IP Bind to the given address and add permission flags to the peers connecting to it. Use [host]:port notation for IPv6. Allowed permissions: bloomfilter (allow requesting BIP37 filtered blocks and transactions), blockfilters (serve compact block filters to peers per BIP157), noban (do not ban for misbehavior; implies download), forcerelay (relay transactions that are already in the mempool; implies relay), relay (relay even in \fB\-blocksonly\fR mode, and unlimited transaction announcements), mempool (allow requesting BIP35 mempool contents), download (allow getheaders during IBD, no disconnect after maxuploadtarget limit), addr (responses to GETADDR avoid hitting the cache and contain random records with the most up\-to\-date info), forceinbound (when connections are full, attempt to evict a random unprotected inbound peer to open a slot; implies noban). Specify multiple permissions separated by commas (default: download,noban,mempool,relay). Can be specified multiple times. .HP \fB\-whitelist=\fR<[permissions@]IP address or network> .IP Add permission flags to the peers using the given IP address (e.g. 1.2.3.4) or CIDR\-notated network (e.g. 1.2.3.0/24). Uses the same permissions as \fB\-whitebind\fR. Additional flags "in" and "out" control whether permissions apply to incoming connections and/or outgoing (default: incoming only). Can be specified multiple times. .PP Wallet options: .HP \fB\-addresstype\fR .IP What type of addresses to use ("legacy", "p2sh\-segwit", "bech32", or "bech32m", default: "bech32") .HP \fB\-avoidpartialspends\fR .IP Group outputs by address, selecting many (possibly all) or none, instead of selecting on a per\-output basis. Privacy is improved as addresses are mostly swept with fewer transactions and outputs are aggregated in clean change addresses. It may result in higher fees due to less optimal coin selection caused by this added limitation and possibly a larger\-than\-necessary number of inputs being used. Always enabled for wallets with "avoid_reuse" enabled, otherwise default: 0. .HP \fB\-changetype\fR .IP What type of change to use ("legacy", "p2sh\-segwit", "bech32", or "bech32m"). Default is "legacy" when \fB\-addresstype\fR=\fI\,legacy\/\fR, else it is an implementation detail. .HP \fB\-consolidatefeerate=\fR .IP The maximum feerate (in BTC/kvB) at which transaction building may use more inputs than strictly necessary so that the wallet's UTXO pool can be reduced (default: 0.0001). .HP \fB\-disablewallet\fR .IP Do not load the wallet and disable wallet RPC calls .HP \fB\-discardfee=\fR .IP The fee rate (in BTC/kvB) that indicates your tolerance for discarding change by adding it to the fee (default: 0.0001). Note: An output is discarded if it is dust at this rate, but we will always discard up to the dust relay fee and a discard fee above that is limited by the fee estimate for the longest target .HP \fB\-fallbackfee=\fR .IP A fee rate (in BTC/kvB) that will be used when fee estimation has insufficient data. 0 to entirely disable the fallbackfee feature. (default: 0.00) .HP \fB\-keypool=\fR .IP Set key pool size to (default: 1000). Warning: Smaller sizes may increase the risk of losing funds when restoring from an old backup, if none of the addresses in the original keypool have been used. .HP \fB\-maxapsfee=\fR .IP Spend up to this amount in additional (absolute) fees (in BTC) if it allows the use of partial spend avoidance (default: 0.00) .HP \fB\-mintxfee=\fR .IP Fee rates (in BTC/kvB) smaller than this are considered zero fee for transaction creation (default: 0.00001) .HP \fB\-paytxfee=\fR .IP Fee rate (in BTC/kvB) to add to transactions you send (default: 0.00) .HP \fB\-signer=\fR .IP External signing tool, see doc/external\-signer.md .HP \fB\-spendzeroconfchange\fR .IP Spend unconfirmed change when sending transactions (default: 1) .HP \fB\-txconfirmtarget=\fR .IP If paytxfee is not set, include enough fee so transactions begin confirmation on average within n blocks (default: 144) .HP \fB\-wallet=\fR .IP Specify wallet path to load at startup. Can be used multiple times to load multiple wallets. Path is to a directory containing wallet data and log files. If the path is not absolute, it is interpreted relative to . This only loads existing wallets and does not create new ones. For backwards compatibility this also accepts names of existing top\-level data files in . .HP \fB\-walletbroadcast\fR .IP Make the wallet broadcast transactions (default: 1) .HP \fB\-walletdir=\fR .IP Specify directory to hold wallets (default: /wallets if it exists, otherwise ) .HP \fB\-walletimplicitsegwit\fR .IP Support segwit when restoring wallet backups and importing keys (default: 0) .HP \fB\-walletnotify=\fR .IP Execute command when a wallet transaction changes. %s in cmd is replaced by TxID, %w is replaced by wallet name, %b is replaced by the hash of the block including the transaction (set to 'unconfirmed' if the transaction is not included) and %h is replaced by the block height (\fB\-1\fR if not included). %w should NOT be quoted because this would break shell escaping used to invoke the command. .HP \fB\-walletrbf\fR .IP Send transactions with full\-RBF opt\-in enabled (RPC only, default: 1) .PP ZeroMQ notification options: .HP \fB\-zmqpubhashblock=\fR
.IP Enable publish hash block in
.HP \fB\-zmqpubhashblockhwm=\fR .IP Set publish hash block outbound message high water mark (default: 1000) .HP \fB\-zmqpubhashtx=\fR
.IP Enable publish hash transaction in
.HP \fB\-zmqpubhashtxhwm=\fR .IP Set publish hash transaction outbound message high water mark (default: 1000) .HP \fB\-zmqpubhashwallettx=\fR
.IP Enable publish hash wallet transaction in
.HP \fB\-zmqpubhashwallettxhwm=\fR .IP Set publish hash wallet transaction outbound message high water mark (default: 1000) .HP \fB\-zmqpubrawblock=\fR
.IP Enable publish raw block in
.HP \fB\-zmqpubrawblockhwm=\fR .IP Set publish raw block outbound message high water mark (default: 1000) .HP \fB\-zmqpubrawtx=\fR
.IP Enable publish raw transaction in
.HP \fB\-zmqpubrawtxhwm=\fR .IP Set publish raw transaction outbound message high water mark (default: 1000) .HP \fB\-zmqpubrawwallettx=\fR
.IP Enable publish raw wallet transaction in
.HP \fB\-zmqpubrawwallettxhwm=\fR .IP Set publish raw wallet transaction outbound message high water mark (default: 1000) .HP \fB\-zmqpubsequence=\fR
.IP Enable publish hash block and tx sequence in
.HP \fB\-zmqpubsequencehwm=\fR .IP Set publish hash sequence message high water mark (default: 1000) .PP Debugging/Testing options: .HP \fB\-debug=\fR .IP Output debug and trace logging (default: \fB\-nodebug\fR, supplying is optional). If is not supplied or if is 1 or "all", output all debug logging. If is 0 or "none", any other categories are ignored. Other valid values for are: addrman, bench, blockstorage, cmpctblock, coindb, estimatefee, http, i2p, ipc, leveldb, libevent, lock, mempool, mempoolrej, net, proxy, prune, qt, rand, reindex, rpc, scan, selectcoins, tor, txpackages, txreconciliation, validation, walletdb, zmq. This option can be specified multiple times to output multiple categories. .HP \fB\-debugexclude=\fR .IP Exclude debug and trace logging for a category. Can be used in conjunction with \fB\-debug\fR=\fI\,1\/\fR to output debug and trace logging for all categories except the specified category. This option can be specified multiple times to exclude multiple categories. This takes priority over "\-debug" .HP \fB\-help\-debug\fR .IP Print help message with debugging options and exit .HP \fB\-logips\fR .IP Include IP addresses in debug output (default: 0) .HP \fB\-loglevelalways\fR .IP Always prepend a category and level (default: 0) .HP \fB\-logsourcelocations\fR .IP Prepend debug output with name of the originating source location (source file, line number and function name) (default: 0) .HP \fB\-logthreadnames\fR .IP Prepend debug output with name of the originating thread (default: 0) .HP \fB\-logtimestamps\fR .IP Prepend debug output with timestamp (default: 1) .HP \fB\-maxtxfee=\fR .IP Maximum total fees (in BTC) to use in a single wallet transaction; setting this too low may abort large transactions (default: 0.10) .HP \fB\-printtoconsole\fR .IP Send trace/debug info to console (default: 1 when no \fB\-daemon\fR. To disable logging to file, set \fB\-nodebuglogfile\fR) .HP \fB\-shrinkdebugfile\fR .IP Shrink debug.log file on client startup (default: 1 when no \fB\-debug\fR) .HP \fB\-uacomment=\fR .IP Append comment to the user agent string .PP Chain selection options: .HP \fB\-chain=\fR .IP Use the chain (default: main). Allowed values: main, test, testnet4, signet, regtest .HP \fB\-signet\fR .IP Use the signet chain. Equivalent to \fB\-chain\fR=\fI\,signet\/\fR. Note that the network is defined by the \fB\-signetchallenge\fR parameter .HP \fB\-signetblocktime\fR .IP Difficulty adjustment will target a block time of the given amount in seconds (only for custom signet networks, must have \fB\-signetchallenge\fR set; defaults to 10 minutes) .HP \fB\-signetchallenge\fR .IP Blocks must satisfy the given script to be considered valid (only for signet networks; defaults to the global default signet test network challenge) .HP \fB\-signetseednode\fR .IP Specify a seed node for the signet network, in the hostname[:port] format, e.g. sig.net:1234 (may be used multiple times to specify multiple seed nodes; defaults to the global default signet test network seed node(s)) .HP \fB\-testnet\fR .IP Use the testnet3 chain. Equivalent to \fB\-chain\fR=\fI\,test\/\fR. Support for testnet3 is deprecated and will be removed in an upcoming release. Consider moving to testnet4 now by using \fB\-testnet4\fR. .HP \fB\-testnet4\fR .IP Use the testnet4 chain. Equivalent to \fB\-chain\fR=\fI\,testnet4\/\fR. .PP Node relay options: .HP \fB\-acceptnonstddatacarrier\fR .IP Relay and mine non\-OP_RETURN datacarrier injection (default: 0) .HP \fB\-acceptnonstdtxn\fR .IP Relay and mine "non\-standard" transactions (default: 0) .HP \fB\-bytespersigop\fR .IP Equivalent bytes per sigop in transactions for relay and mining (default: 20) .HP \fB\-bytespersigopstrict\fR .IP Minimum bytes per sigop in transactions we relay and mine (default: 20) .HP \fB\-datacarrier\fR .IP Relay and mine data carrier transactions (default: 1) .HP \fB\-datacarriercost\fR .IP Treat extra data in transactions as at least N vbytes per actual byte (default: 1) .HP \fB\-datacarriersize\fR .IP Maximum size of data in data carrier transactions we relay and mine, in bytes (default: 42) .HP \fB\-dustdynamic\fR=\fI\,off\/\fR|[*]target:|[*]mempool: .IP Automatically raise dustrelayfee based on either the expected fee to be mined within blocks, or to be within the best kvB of this node's mempool. If unspecified, multiplier is 3. (default: off) .HP \fB\-dustrelayfee=\fR .IP Fee rate (in BTC/kvB) used to define dust, the value of an output such that it will cost more than its value in fees at this fee rate to spend it. (default: 0.00003) .HP \fB\-maxscriptsize\fR .IP Maximum size of scripts we relay and mine, in bytes (default: 1650) .HP \fB\-mempoolfullrbf\fR .IP Accept transaction replace\-by\-fee without requiring replaceability signaling (default: 1) .HP \fB\-mempoolreplacement\fR .IP Set to 0 to disable RBF entirely, "fee,optin" to honour RBF opt\-out signal, or "fee,\-optin" to always RBF aka full RBF (default: fee,\-optin) .HP \fB\-mempooltruc\fR .IP Behaviour for transactions requesting TRUC limits: "reject" the transactions entirely, "accept" them just like any other, or "enforce" to impose their requested restrictions (default: accept) .HP \fB\-minrelaytxfee=\fR .IP Fees (in BTC/kvB) smaller than this are considered zero fee for relaying, mining and transaction creation (default: 0.00001) .HP \fB\-permitbaremultisig\fR .IP Relay transactions creating non\-P2SH multisig outputs (default: 0) .HP \fB\-permitbarepubkey\fR .IP Relay legacy pubkey outputs (default: 0) .HP \fB\-rejectparasites\fR .IP Refuse to relay or mine parasitic overlay protocols (default: 1) .HP \fB\-rejecttokens\fR .IP Refuse to relay or mine transactions involving non\-bitcoin tokens (default: 0) .HP \fB\-spkreuse=\fR .IP Either "allow" to relay/mine transactions reusing addresses or other pubkey scripts, or "conflict" to treat them as exclusive prior to being mined (default: allow) .HP \fB\-whitelistforcerelay\fR .IP Add 'forcerelay' permission to whitelisted peers with default permissions. This will relay transactions even if the transactions were already in the mempool. (default: 0) .HP \fB\-whitelistrelay\fR .IP Add 'relay' permission to whitelisted peers with default permissions. This will accept relayed transactions even when not relaying transactions (default: 1) .PP Block creation options: .HP \fB\-blockmaxsize=\fR .IP Set maximum block size in bytes (default: 300000) .HP \fB\-blockmaxweight=\fR .IP Set maximum BIP141 block weight (default: 1200000) .HP \fB\-blockmintxfee=\fR .IP Set lowest fee rate (in BTC/kvB) for transactions to be included in block creation. (default: 0.00001) .HP \fB\-blockprioritysize=\fR .IP Set maximum size of high\-priority/low\-fee transactions in bytes (default: 100000) .PP RPC server options: .HP \fB\-rest\fR .IP Accept public REST requests (default: 0) .HP \fB\-rpcallowip=\fR .IP Allow JSON\-RPC connections from specified source. Valid values for are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0), a network/CIDR (e.g. 1.2.3.4/24), all ipv4 (0.0.0.0/0), or all ipv6 (::/0). This option can be specified multiple times .HP \fB\-rpcauth=\fR[:wallet] .IP Username and HMAC\-SHA\-256 hashed password for JSON\-RPC connections. The field comes in the format: :$. A canonical python script is included in share/rpcauth. The client then connects normally using the rpcuser=/rpcpassword= pair of arguments. A single wallet name can also be specified to restrict access to only that wallet, or '\-' to deny all wallet access. This option can be specified multiple times .HP \fB\-rpcauthfile=\fR .IP A file with a single lines with same format as rpcauth. This option can be specified multiple times .HP \fB\-rpcbind=\fR[:port] .IP Bind to given address to listen for JSON\-RPC connections. Do not expose the RPC server to untrusted networks such as the public internet! This option is ignored unless \fB\-rpcallowip\fR is also passed. Port is optional and overrides \fB\-rpcport\fR. Use [host]:port notation for IPv6. This option can be specified multiple times (default: 127.0.0.1 and ::1 i.e., localhost) .HP \fB\-rpccookiefile=\fR .IP Location of the auth cookie. Relative paths will be prefixed by a net\-specific datadir location. (default: data dir) .HP \fB\-rpccookieperms=\fR .IP Set permissions on the RPC auth cookie file so that it is readable by [owner|group|all] (default: owner [via umask 0077]) .HP \fB\-rpcpassword=\fR .IP Password for JSON\-RPC connections .HP \fB\-rpcport=\fR .IP Listen for JSON\-RPC connections on (default: 8332, testnet3: 18332, testnet4: 48332, signet: 38332, regtest: 18443) .HP \fB\-rpcthreads=\fR .IP Set the number of threads to service RPC calls (default: 16) .HP \fB\-rpcuser=\fR .IP Username for JSON\-RPC connections .HP \fB\-rpcwhitelist=\fR .IP Set a whitelist to filter incoming RPC calls for a specific user. The field comes in the format: :,,...,. If multiple whitelists are set for a given user, they are set\-intersected. See \fB\-rpcwhitelistdefault\fR documentation for information on default whitelist behavior. .HP \fB\-rpcwhitelistdefault\fR .IP Sets default behavior for rpc whitelisting. Unless rpcwhitelistdefault is set to 0, if any \fB\-rpcwhitelist\fR is set, the rpc server acts as if all rpc users are subject to empty\-unless\-otherwise\-specified whitelists. If rpcwhitelistdefault is set to 1 and no \fB\-rpcwhitelist\fR is set, rpc server acts as if all rpc users are subject to empty whitelists. .HP \fB\-server\fR .IP Accept command line and JSON\-RPC commands .PP UI Options: .HP \fB\-choosedatadir\fR .IP Choose data directory on startup (default: 0) .HP \fB\-guisettingsdir=\fR .IP Choose a custom data directory especially for the Qt Settings .HP \fB\-lang=\fR .IP Set language, for example "de_DE" (default: system locale) .HP \fB\-min\fR .IP Start minimized .HP \fB\-resetguisettings\fR .IP Reset all settings changed in the GUI .HP \fB\-splash\fR .IP Show splash screen on startup (default: 1) .PP Statistic options: .HP \fB\-statsenable\fR .IP Enable statistics (default: 0) .HP \fB\-statsmaxmemorytarget=\fR .IP Set the memory limit target for statistics in bytes (default: 10485760) .SH COPYRIGHT Copyright (C) 2009-2025 The Bitcoin Knots developers Copyright (C) 2009-2025 The Bitcoin Core developers Please contribute if you find Bitcoin Knots useful. Visit for further information about the software. The source code is available from . This is experimental software. Distributed under the MIT software license, see the accompanying file COPYING or .SH "SEE ALSO" bitcoind(1), bitcoin-cli(1), bitcoin-tx(1), bitcoin-wallet(1), bitcoin-util(1)