# hop-protocol/hop

🐰 Hop Protocol Monorepo

Repository: https://github.com/hop-protocol/hop
Canonical: https://ross.abutalabs.com/products/hop
Homepage: https://hop.exchange/
Language: TypeScript
License: MIT
License Family: permissive
Topics: hop, hop-protocol, monorepo, react, typescript, npm, javascript, sdk, frontend, hop-node
Last push: 2025-10-29T16:38:04+00:00

## Health v2 (maintenance only)
Score: 61/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 49, release rhythm 54, longevity 100
- inputs: {"age_days": 2145, "days_push": 308, "days_rel": 308, "gap_med": 5, "n_releases_24m": 22}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2824, forks 213 (observed 2026-08-28T04:07:24.113238+00:00)

## What it is
Hop Protocol is a monorepo containing TypeScript SDKs, a hop-node, and a React frontend for the Hop cross-chain bridge, which enables token transfers between Ethereum and Layer 2 networks. It is published as npm packages including @hop-protocol/sdk, @hop-protocol/hop-node, and @hop-protocol/frontend.

## Use cases
- bridge tokens between ethereum and layer 2 rollups
- integrate hop bridge transfers into a defi app via sdk
- run a hop node to relay transfers across chains
- build a frontend for cross-chain token transfers
- programmatically send assets from arbitrum to optimism
- query cross-chain transfer routes and fees in typescript

## When to choose
- you need to add cross-chain bridging to a TypeScript or JavaScript application
- you want to operate infrastructure that relays transfers between Ethereum L2s
- you are building on or integrating with the Hop Protocol specifically

## When to avoid
- you need a general-purpose multi-bridge aggregator rather than Hop-specific tooling
- your project is not in the Ethereum/EVM ecosystem
- you need a non-TypeScript SDK with first-class support

## Facets
- artifact type: library
- maturity: active
- function: sdk, web-framework, developer-tools
- domain: blockchain, fintech, web-development, frontend
- platform: browser
- tags: blockchain, cross-chain-bridge, defi, ethereum, layer2, monorepo, pnpm, rollup, bridging, web3, cryptocurrency, nodejs, typescript, web-server

## Member repositories
- hop-protocol/hop (main) score 61

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:24.113238+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:38:15.240812+00:00, confidence not recorded.
  - readme: https://github.com/hop-protocol/hop (fetched 2026-08-28T04:07:24.113238+00:00, sha daa0aaa5b4e1)
  - homepage: https://hop.exchange/ (fetched 2026-08-29T09:53:48.425020+00:00, sha f277f3765ab1)
- Data as of 2026-08-30T08:39:29.467469+00:00.