# 0xProject/0x-monorepo

0x protocol monorepo - includes our smart contracts and many developer tools

Repository: https://github.com/0xProject/0x-monorepo
Canonical: https://ross.abutalabs.com/products/0x-monorepo
Language: TypeScript
License: NOASSERTION
License Family: other
Topics: 0x, ethereum, erc20, erc721, exchange
Archived: true
Last push: 2021-04-24T01:16:16+00:00

## Health v2 (maintenance only)
Score: 10/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 3389, "days_push": 1958, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: archived, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1408, forks 459 (observed 2026-08-28T04:04:38.511215+00:00)

## What it is
The 0x protocol monorepo containing Ethereum smart contracts and developer tooling (TypeScript and Python packages) for trustless exchange of Ethereum-based assets. This repository is deprecated and no longer maintained, with successors at 0xProject/protocol and 0xProject/tools.

## Use cases
- build a decentralized exchange on ethereum
- integrate 0x protocol order handling into an app
- get deployed 0x contract addresses for a network
- wrap 0x smart contracts in python
- trade erc20 and erc721 tokens trustlessly

## When to choose
- you need historical 0x v2/v3 contract artifacts or order utilities
- you're maintaining legacy code that depends on these npm/pypi packages

## When to avoid
- starting a new project - use 0xProject/protocol and 0xProject/tools instead
- you need maintained, supported tooling

## Facets
- artifact type: library
- maturity: abandoned
- function: sdk, cryptography, developer-tools
- domain: blockchain, developer-tools
- platform: python
- tags: ethereum, 0x-protocol, smart-contracts, erc20, erc721, decentralized-exchange, monorepo, deprecated, cryptocurrency, typescript, nodejs

## Member repositories
- 0xProject/0x-monorepo (main) score 10

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:38.511215+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 2026-08-30T04:38:34.086624+00:00, confidence not recorded.
  - readme: https://github.com/0xProject/0x-monorepo (fetched 2026-08-28T04:04:38.511215+00:00, sha 06de6e106610)
- Data as of 2026-08-30T08:39:29.467469+00:00.