# @libp2p/kad-dht

> JavaScript implementation of the Kad-DHT for libp2p

Latest version **16.4.5** (published 2026-08-31) · Apache-2.0 OR MIT license · 0 weekly downloads

## Install

```sh
npm install @libp2p/kad-dht
pnpm add @libp2p/kad-dht
yarn add @libp2p/kad-dht
bun add @libp2p/kad-dht
```

## Health

**Score 75/100 (B)** — status: active.

Positive: has types; esm support; no vulnerabilities; has provenance; recently updated; high maintenance score; high quality score.

Warnings: low downloads.

## Facts

| | |
|---|---|
| Version | 16.4.5 |
| Published | 2026-08-31 |
| First published | 2022-02-21 |
| Weekly downloads | 0 |
| License | Apache-2.0 OR MIT |
| TypeScript types | bundled |
| Module format | ESM |
| Dependencies | 31 |
| Unpacked size | 4.5 MB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| Provenance | attested (GitHub Actions) |
| GitHub stars | 2580 |
| Maintainers | daviddias, alanshaw, achingbrain, vascosantos, npm-service-account-libp2p, jacobheun |
| Keywords | IPFS |

## Links

- npm: https://www.npmjs.com/package/@libp2p/kad-dht
- Repository: https://github.com/libp2p/js-libp2p
- Homepage: https://github.com/libp2p/js-libp2p/tree/main/packages/kad-dht#readme
- Issues: https://github.com/libp2p/js-libp2p/issues
- npm.io page: https://npm.io/package/@libp2p/kad-dht

## Dependencies (31)

- [it-all](https://npm.io/package/it-all.md) ^3.0.9
- [it-map](https://npm.io/package/it-map.md) ^3.1.4
- [it-pipe](https://npm.io/package/it-pipe.md) ^3.0.1
- [it-take](https://npm.io/package/it-take.md) ^3.0.9
- [p-defer](https://npm.io/package/p-defer.md) ^4.0.1
- [p-event](https://npm.io/package/p-event.md) ^7.0.0
- [it-drain](https://npm.io/package/it-drain.md) ^3.0.10
- [it-merge](https://npm.io/package/it-merge.md) ^3.0.12
- [it-length](https://npm.io/package/it-length.md) ^3.0.9
- [any-signal](https://npm.io/package/any-signal.md) ^4.1.1
- [main-event](https://npm.io/package/main-event.md) ^1.0.1
- [it-parallel](https://npm.io/package/it-parallel.md) ^3.0.13
- [it-pushable](https://npm.io/package/it-pushable.md) ^3.2.3
- [race-signal](https://npm.io/package/race-signal.md) ^2.0.0
- [uint8arrays](https://npm.io/package/uint8arrays.md) ^6.1.1
- [@libp2p/ping](https://npm.io/package/@libp2p/ping.md) ^3.1.13
- [multiformats](https://npm.io/package/multiformats.md) ^14.0.0
- [uint8-varint](https://npm.io/package/uint8-varint.md) ^3.0.0
- [@libp2p/utils](https://npm.io/package/@libp2p/utils.md) ^7.4.1
- [@libp2p/crypto](https://npm.io/package/@libp2p/crypto.md) ^5.1.23
- [@libp2p/record](https://npm.io/package/@libp2p/record.md) ^4.0.15
- [uint8arraylist](https://npm.io/package/uint8arraylist.md) ^3.0.2
- [@libp2p/peer-id](https://npm.io/package/@libp2p/peer-id.md) ^6.0.15
- [progress-events](https://npm.io/package/progress-events.md) ^1.0.1
- [protons-runtime](https://npm.io/package/protons-runtime.md) ^7.0.0
- [@libp2p/interface](https://npm.io/package/@libp2p/interface.md) ^3.3.0
- [interface-datastore](https://npm.io/package/interface-datastore.md) ^10.0.1
- [@multiformats/multiaddr](https://npm.io/package/@multiformats/multiaddr.md) ^13.0.3
- [@libp2p/peer-collections](https://npm.io/package/@libp2p/peer-collections.md) ^7.0.28
- [@libp2p/interface-internal](https://npm.io/package/@libp2p/interface-internal.md) ^3.1.13
- [@multiformats/multiaddr-matcher](https://npm.io/package/@multiformats/multiaddr-matcher.md) ^3.0.2

## Recent versions

- 16.4.5 (latest) — 2026-08-31
- 16.4.5-5cb617ae2 (next) — 2026-09-02
- 16.4.5-185d901cd — 2026-09-02
- 16.4.4-cef4d32cf — 2026-08-31
- 16.4.4-ac7305ccf — 2026-08-31
- 16.4.4-87dca02b0 — 2026-08-27
- 16.4.4-4a6c5d11a — 2026-08-27
- 16.4.4 — 2026-08-23
- 16.4.3-947d304ed — 2026-08-22
- 16.4.3-0967e75f5 — 2026-08-22
- 16.4.3-4dae661b4 — 2026-08-22
- 16.4.3-8786aa8d0 — 2026-08-20
- 16.4.3-55d7a539a — 2026-08-20
- 16.4.3 — 2026-08-14
- 16.4.2-d5534174d — 2026-08-13
- … 985 more at https://npm.io/package/@libp2p/kad-dht/versions

## README

# @libp2p/kad-dht

[![libp2p.io](https://img.shields.io/badge/project-libp2p-yellow.svg?style=flat-square)](http://libp2p.io/)
[![Discuss](https://img.shields.io/discourse/https/discuss.libp2p.io/posts.svg?style=flat-square)](https://discuss.libp2p.io)
[![codecov](https://img.shields.io/codecov/c/github/libp2p/js-libp2p.svg?style=flat-square)](https://codecov.io/gh/libp2p/js-libp2p)
[![CI](https://img.shields.io/github/actions/workflow/status/libp2p/js-libp2p/main.yml?branch=main\&style=flat-square)](https://github.com/libp2p/js-libp2p/actions/workflows/main.yml?query=branch%3Amain)

> JavaScript implementation of the Kad-DHT for libp2p

# About

<!--

!IMPORTANT!

Everything in this README between "# About" and "# Install" is automatically
generated and will be overwritten the next time the doc generator is run.

To make changes to this section, please update the @packageDocumentation section
of src/index.js or src/index.ts

To experiment with formatting, please run "npm run docs" from the root of this
repo and examine the changes made.

-->

This module implements the [libp2p Kademlia spec](https://github.com/libp2p/specs/blob/master/kad-dht/README.md) in TypeScript.

The Kademlia DHT allow for several operations such as finding peers, searching for providers of DHT records, etc.

## Example - Using with libp2p

```TypeScript
import { kadDHT } from '@libp2p/kad-dht'
import { createLibp2p } from 'libp2p'
import { peerIdFromString } from '@libp2p/peer-id'
import { ping } from '@libp2p/ping'
import { identify } from '@libp2p/identify'

const node = await createLibp2p({
  services: {
    dht: kadDHT({
      // DHT options
    }),
    ping: ping(),
    identify: identify()
  }
})

const peerId = peerIdFromString('QmFoo')
const peerInfo = await node.peerRouting.findPeer(peerId)

console.info(peerInfo) // peer id, multiaddrs
```

## Example - Connecting to the IPFS Amino DHT

The [Amino DHT](https://blog.ipfs.tech/2023-09-amino-refactoring/) is a public-good DHT used by IPFS to fetch content, find peers, etc.

If you are trying to access content on the public internet, this is the implementation you want.

```TypeScript
import { kadDHT, removePrivateAddressesMapper } from '@libp2p/kad-dht'
import { createLibp2p } from 'libp2p'
import { peerIdFromString } from '@libp2p/peer-id'
import { ping } from '@libp2p/ping'
import { identify } from '@libp2p/identify'

const node = await createLibp2p({
  services: {
    aminoDHT: kadDHT({
      protocol: '/ipfs/kad/1.0.0',
      peerInfoMapper: removePrivateAddressesMapper
    }),
    ping: ping(),
    identify: identify()
  }
})

const peerId = peerIdFromString('QmFoo')
const peerInfo = await node.peerRouting.findPeer(peerId)

console.info(peerInfo) // peer id, multiaddrs
```

## Example - Connecting to a LAN-only DHT

This DHT only works with privately dialable peers.

This is for use when peers are on the local area network.

```TypeScript
import { kadDHT, removePublicAddressesMapper } from '@libp2p/kad-dht'
import { createLibp2p } from 'libp2p'
import { peerIdFromString } from '@libp2p/peer-id'
import { ping } from '@libp2p/ping'
import { identify } from '@libp2p/identify'

const node = await createLibp2p({
  services: {
    lanDHT: kadDHT({
      protocol: '/ipfs/lan/kad/1.0.0',
      peerInfoMapper: removePublicAddressesMapper,
      clientMode: false
    }),
    ping: ping(),
    identify: identify()
  }
})

const peerId = peerIdFromString('QmFoo')
const peerInfo = await node.peerRouting.findPeer(peerId)

console.info(peerInfo) // peer id, multiaddrs
```

## Example - Connecting to both a LAN-only DHT and the IPFS Amino DHT

When using multiple DHTs, you should specify distinct datastore, metrics and
log prefixes to ensure that data is kept separate for each instance.

```TypeScript
import { kadDHT, removePublicAddressesMapper, removePrivateAddressesMapper } from '@libp2p/kad-dht'
import { createLibp2p } from 'libp2p'
import { peerIdFromString } from '@libp2p/peer-id'
import { ping } from '@libp2p/ping'
import { identify } from '@libp2p/identify'

const node = await createLibp2p({
  services: {
    lanDHT: kadDHT({
      protocol: '/ipfs/lan/kad/1.0.0',
      peerInfoMapper: removePublicAddressesMapper,
      clientMode: false,
      logPrefix: 'libp2p:dht-lan',
      datastorePrefix: '/dht-lan',
      metricsPrefix: 'libp2p_dht_lan'
    }),
    aminoDHT: kadDHT({
      protocol: '/ipfs/kad/1.0.0',
      peerInfoMapper: removePrivateAddressesMapper,
      logPrefix: 'libp2p:dht-amino',
      datastorePrefix: '/dht-amino',
      metricsPrefix: 'libp2p_dht_amino'
    }),
    ping: ping(),
    identify: identify()
  }
})

const peerId = peerIdFromString('QmFoo')
const peerInfo = await node.peerRouting.findPeer(peerId)

console.info(peerInfo) // peer id, multiaddrs
```

# Install

```console
$ npm i @libp2p/kad-dht
```

## Browser `<script>` tag

Loading this module through a script tag will make its exports available as `Libp2pKadDht` in the global namespace.

```html
<script src="https://unpkg.com/@libp2p/kad-dht/dist/index.min.js"></script>
```

# API Docs

- <https://libp2p.github.io/js-libp2p/modules/_libp2p_kad-dht.html>

# License

Licensed under either of

- Apache 2.0, ([LICENSE-APACHE](https://github.com/libp2p/js-libp2p/blob/main/packages/kad-dht/LICENSE-APACHE) / <http://www.apache.org/licenses/LICENSE-2.0>)
- MIT ([LICENSE-MIT](https://github.com/libp2p/js-libp2p/blob/main/packages/kad-dht/LICENSE-MIT) / <http://opensource.org/licenses/MIT>)

# Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

---
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