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https://github.com/lightningnetwork/lnd

Lightning Network Daemon ⚡️
https://github.com/lightningnetwork/lnd

bitcoin blockchain cryptocurrency cryptography lightning lightning-network micropayments payments peer-to-peer protocol

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Lightning Network Daemon ⚡️

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README 

        
## Lightning Network Daemon



[![Release build](https://github.com/lightningnetwork/lnd/actions/workflows/release.yaml/badge.svg)](https://github.com/lightningnetwork/lnd/actions/workflows/release.yaml)

[![MIT licensed](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/lightningnetwork/lnd/blob/master/LICENSE)

[![Irc](https://img.shields.io/badge/chat-on%20libera-brightgreen.svg)](https://web.libera.chat/#lnd)

[![Godoc](https://godoc.org/github.com/lightningnetwork/lnd?status.svg)](https://godoc.org/github.com/lightningnetwork/lnd)

[![Go Report Card](https://goreportcard.com/badge/github.com/lightningnetwork/lnd)](https://goreportcard.com/report/github.com/lightningnetwork/lnd)






The Lightning Network Daemon (`lnd`) - is a complete implementation of a

[Lightning Network](https://lightning.network) node.  `lnd` has several pluggable back-end

chain services including [`btcd`](https://github.com/btcsuite/btcd) (a

full-node), [`bitcoind`](https://github.com/bitcoin/bitcoin), and

[`neutrino`](https://github.com/lightninglabs/neutrino) (a new experimental light client). The project's codebase uses the

[btcsuite](https://github.com/btcsuite/) set of Bitcoin libraries, and also

exports a large set of isolated re-usable Lightning Network related libraries

within it.  In the current state `lnd` is capable of:

* Creating channels.

* Closing channels.

* Completely managing all channel states (including the exceptional ones!).

* Maintaining a fully authenticated+validated channel graph.

* Performing path finding within the network, passively forwarding incoming payments.

* Sending outgoing [onion-encrypted payments](https://github.com/lightningnetwork/lightning-onion)

through the network.

* Updating advertised fee schedules.

* Automatic channel management ([`autopilot`](https://github.com/lightningnetwork/lnd/tree/master/autopilot)).



## Lightning Network Specification Compliance

`lnd` _fully_ conforms to the [Lightning Network specification

(BOLTs)](https://github.com/lightningnetwork/lightning-rfc). BOLT stands for:

Basis of Lightning Technology. The specifications are currently being drafted

by several groups of implementers based around the world including the

developers of `lnd`. The set of specification documents as well as our

implementation of the specification are still a work-in-progress. With that

said, the current status of `lnd`'s BOLT compliance is:



  - [X] BOLT 1: Base Protocol

  - [X] BOLT 2: Peer Protocol for Channel Management

  - [X] BOLT 3: Bitcoin Transaction and Script Formats

  - [X] BOLT 4: Onion Routing Protocol

  - [X] BOLT 5: Recommendations for On-chain Transaction Handling

  - [X] BOLT 7: P2P Node and Channel Discovery

  - [X] BOLT 8: Encrypted and Authenticated Transport

  - [X] BOLT 9: Assigned Feature Flags

  - [X] BOLT 10: DNS Bootstrap and Assisted Node Location

  - [X] BOLT 11: Invoice Protocol for Lightning Payments



## Developer Resources



The daemon has been designed to be as developer friendly as possible in order

to facilitate application development on top of `lnd`. Two primary RPC

interfaces are exported: an HTTP REST API, and a [gRPC](https://grpc.io/)

service. The exported APIs are not yet stable, so be warned: they may change

drastically in the near future.



An automatically generated set of documentation for the RPC APIs can be found

at [api.lightning.community](https://api.lightning.community). A set of developer

resources including guides, articles, example applications and community resources can be found at:

[docs.lightning.engineering](https://docs.lightning.engineering).



Finally, we also have an active

[Slack](https://lightning.engineering/slack.html) where protocol developers, application developers, testers and users gather to

discuss various aspects of `lnd` and also Lightning in general.



## Installation

  In order to build from source, please see [the installation

  instructions](docs/INSTALL.md).



## Docker

  To run lnd from Docker, please see the main [Docker instructions](docs/DOCKER.md)



## IRC

  * irc.libera.chat

  * channel #lnd

  * [webchat](https://web.libera.chat/#lnd)



## Safety



When operating a mainnet `lnd` node, please refer to our [operational safety

guidelines](docs/safety.md). It is important to note that `lnd` is still

**beta** software and that ignoring these operational guidelines can lead to

loss of funds.



## Security



The developers of `lnd` take security _very_ seriously. The disclosure of

security vulnerabilities helps us secure the health of `lnd`, privacy of our

users, and also the health of the Lightning Network as a whole.  If you find

any issues regarding security or privacy, please disclose the information

responsibly by sending an email to security at lightning dot engineering,

preferably encrypted using our designated PGP key

(`91FE464CD75101DA6B6BAB60555C6465E5BCB3AF`) which can be found

[here](https://gist.githubusercontent.com/Roasbeef/6fb5b52886183239e4aa558f83d085d3/raw/5fa96010af201628bcfa61e9309d9b13d23d220f/[email protected]).



## Further reading

* [Step-by-step send payment guide with docker](https://github.com/lightningnetwork/lnd/tree/master/docker)

* [Contribution guide](https://github.com/lightningnetwork/lnd/blob/master/docs/code_contribution_guidelines.md)