# smartcontractkit/chainlink

node of the decentralized oracle network, bridging on and off-chain computation

Repository: https://github.com/smartcontractkit/chainlink
Canonical: https://ross.abutalabs.com/products/chainlink
Homepage: https://chain.link
Language: Go
License: NOASSERTION
License Family: other
Topics: chainlink, ethereum, blockchain, golang, solidity, oracle
Last push: 2026-08-26T21:42:52+00:00

## Health v2 (maintenance only)
Score: 99/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 99, longevity 100
- inputs: {"age_days": 3208, "days_push": 7, "days_rel": 9, "gap_med": 7.0, "n_releases_24m": 47}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 8236, forks 1979 (observed 2026-08-28T04:10:19.769137+00:00)

## What it is
Chainlink is the core node software of a decentralized oracle network that bridges smart contracts with real-world data and off-chain computation. Node operators run this Go binary (also distributed as Docker images) to participate in oracle networks powering data feeds, cross-chain messaging (CCIP), and other on-chain services.

## Use cases
- run a chainlink oracle node
- get real-world price data into smart contracts
- connect defi protocols to offchain market data
- bridge data between blockchains and external apis
- participate in a decentralized oracle network
- provide cross-chain messaging infrastructure
- feed asset prices to lending protocols

## When to choose
- you operate or want to run a Chainlink oracle node
- you need the core node source code to build custom oracle infrastructure
- you want to contribute to or audit the Chainlink protocol implementation

## When to avoid
- you just want to consume Chainlink data feeds in a dapp - use the @chainlink/contracts npm package instead
- you need a simple centralized API integration without oracle guarantees
- you are not working with blockchain or smart contract systems

## Facets
- artifact type: service
- maturity: stable
- function: blockchain, networking, middleware, api-framework, webhook, sdk
- domain: blockchain, fintech, microservices, apis
- platform: go, cross-platform, self-hosted
- tags: oracle-network, smart-contracts, defi, ethereum, solidity, data-feeds, node-operator, offchain-computation, ccip, price-feeds, cryptocurrency, docker, linux, macos

## Member repositories
- smartcontractkit/chainlink (main) score 99

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:10:19.769137+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 2026-08-29T17:29:30.050349+00:00, confidence not recorded.
  - readme: https://github.com/smartcontractkit/chainlink (fetched 2026-08-28T04:10:19.769137+00:00, sha 7ccb1875a4fe)
  - homepage: https://chain.link (fetched 2026-08-29T08:28:02.319153+00:00, sha c166363a56a7)
  - site_page: https://docs.chain.link/docs (fetched 2026-08-29T08:28:02.328599+00:00, sha 44136fa355b3)
  - site_page: https://docs.chain.link/data-feeds (fetched 2026-08-29T08:28:02.330828+00:00, sha 155e99ac2c19)
  - site_page: https://chain.link/faqs (fetched 2026-08-29T08:28:02.333049+00:00, sha 42caf19c66b1)
- Data as of 2026-08-30T08:39:29.467469+00:00.