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Alex Bosworth 0d1cb3e5d6
Merge pull request #452 from suhailsaqan/patch-1
2 weeks ago
.github GitHub: add issue templates 11 months ago
cmd loop: allow setting swap type for individual rules 1 month ago
docs Fixed a typo in 2 weeks ago
labels multi: update autoloop labels to support both swap types 12 months ago
liquidity liquidity/test: add autoloop in tests 1 month ago
loopd loopd: close dbs when the daemon stops 4 weeks ago
loopdb loopdb: alias swapserverrpc with looprpc 1 month ago
looprpc multi: surface loop in parameters on rpc 1 month ago
regtest bump lnd versions from 12.1-beta to 13.4-beta 2 months ago
swap test: spend tests for the new v2 htlc 1 year ago
swapserverrpc swapserverrpc: remove unnecessary vars in proto dockerfile 1 month ago
sweep sweeper: set sequence to be able to sweep htlc v2 utxo 1 year ago
test loop: Reimplement SelectHopHints from lnd 1 month ago
.gitignore makefile+travis: add install and build commands 2 years ago
.golangci.yml lint: allow init functions 2 years ago
.travis.yml Travis+make: compile JSON/WASM stubs 6 months ago docs: remove weird character in 12 months ago
Dockerfile multi: bump minimum golang version to 1.15 9 months ago
LICENSE Initial commit 3 years ago
Makefile multi: move server proto files to their own directory 1 month ago Merge branch 'master' into patch-1 10 months ago
client.go loopd: close dbs when the daemon stops 4 weeks ago
client_test.go multi: surface server swap initiation grpc error codes 6 months ago
config.go multi: use aperture instead of local lsat library 9 months ago
executor.go executor: fix linter error 8 months ago
go.mod swapserverrpc: make swapserverrpc its own module 1 month ago
go.sum mod: bump lnd to v0.14.1-beta 2 months ago
interface.go multi: pass private, routehints from loopcli - loopd - loop server 1 month ago
log.go multi: add persistent logger 2 years ago
loopin.go multi: pass private, routehints from loopcli - loopd - loop server 1 month ago
loopin_test.go multi: surface server swap initiation grpc error codes 6 months ago
loopin_testcontext_test.go loopin: handle EOF case for SubscribeSingleInvoice 7 months ago
loopout.go multi: surface server swap initiation grpc error codes 6 months ago
loopout_test.go Merge pull request #368 from yyforyongyu/fix-test 6 months ago release: remove support for darwin 386 1 year ago docs: update release notes 4 weeks ago
server_mock_test.go loop: integrate the probe api with loop-in quote 6 months ago
store_mock_test.go loopin: record htlx tx hash 2 years ago
swap.go multi: integrate the new htlc v2 scripts to loop in/out 1 year ago
swap_server_client.go loop: alias import for swapserverrpc in swap server client 1 month ago
testcontext_test.go multi: add cancel swap function to execute config 8 months ago
uncharge_state.go loop: extract code from client package into new loop primary package 3 years ago
updates.go multi: consume and log sever state updates 2 years ago
utils.go loop: Reimplement SelectHopHints from lnd 1 month ago
utils_test.go loop: Reimplement SelectHopHints from lnd 1 month ago
version.go version: bump version to v0.16.0-beta 1 month ago

Lightning Loop

Lightning Loop is a non-custodial service offered by Lightning Labs that makes it easy to move bitcoin into and out of the Lightning Network.


  • Automated channel balancing
  • Privacy-forward non-custodial swaps
  • Opportunistic transaction batching to save on fees
  • Progress monitoring of in-flight swaps

Use Cases

  • Automate channel balancing with AutoLoop (Learn more)
  • Deposit to a Bitcoin address without closing channels with Loop In
  • Convert outbound liquidity into inbound liquidity with Loop Out
  • Refill depleted Lightning channels with Loop In


Download the latest binaries from the releases page.


The Loop client needs its own short-lived daemon to facilitate swaps. To start loopd:


To use Loop in testnet, simply pass the network flag:

loopd --network=testnet

By default loopd attempts to connect to the lnd instance running on localhost:10009 and reads the macaroon and tls certificate from ~/.lnd. This can be altered using command line flags. See loopd --help.



AutoLoop makes it easy to keep your channels balanced. Checkout our autoloop documentation for details.

Loop Out

Use Loop Out to move bitcoins on Lightning into an on-chain Bitcoin address.

To execute a Loop Out:

loop out <amt_in_satoshis>

Other notable options:

  • Use the --fast flag to swap immediately (Note: This opts-out of fee savings made possible by transaction batching)
  • Use the --channel flag to loop out on specific channels
  • Use the --addr flag to specify the address the looped out funds should be sent to (Note: By default funds are sent to the lnd wallet)

Run loop monitor to monitor the status of a swap.

Loop In

Use Loop In to convert on-chain bitcoin into spendable Lightning funds.

To execute a Loop In:

loop in <amt_in_satoshis>

More info

For more information about using Loop checkout our Loop FAQs.



To get started with local development against a stripped down dummy Loop server running in a local regtest Bitcoin network, take a look at the regtest server environment example documentation.


To use Loop in testnet, simply pass the network flag:

loopd --network=testnet

Submit feature requests

The GitHub issue tracker can be used to request specific improvements or report bugs.

Join us on Slack

Join us on the LND Slack and join the #loop channel to ask questions and interact with the community.


Note that Loop requires lnd to be built with all of its subservers. Download the latest official release binary or build lnd from source by following the installation instructions. If you choose to build lnd from source, use the following command to enable all the relevant subservers:

make install tags="signrpc walletrpc chainrpc invoicesrpc"


The Loop daemon exposes a gRPC API (defaults to port 11010) and a REST API (defaults to port 8081).

The gRPC and REST connections of loopd are encrypted with TLS and secured with macaroon authentication the same way lnd is.

If no custom loop directory is set then the TLS certificate is stored in ~/.loop/<network>/tls.cert and the base macaroon in ~/.loop/<network>/loop.macaroon.

The loop command will pick up these file automatically on mainnet if no custom loop directory is used. For other networks it should be sufficient to add the --network flag to tell the CLI in what sub directory to look for the files.

For more information on macaroons, see the macaroon documentation of lnd.

NOTE: Loop's macaroons are independent from lnd's. The same macaroon cannot be used for both loopd and lnd.

Build from source

If you’d prefer to build from source:

git clone
cd loop/cmd
go install ./...