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Chainlink

LINK · Field entry
Oracle & dataISO 20022Real-world assetsInfrastructure

A network that brings outside data and cross-chain messaging to blockchains

$14.160.89%Snapshot · October 4, 2026 · updates live
Market cap
$10.59B
24h volume
$265.29M
Rank
#13
Circulating
748.10M LINK
Max supply
1.00B LINK
All-time high
$52.70 May 9, 2021

LINK price chart

7-day snapshot. Chart data from CoinGecko.

What is Chainlink?

Chainlink is a network of independent node operators that deliver real-world data, such as asset prices, to smart contracts and move messages and tokens between blockchains. LINK is the token used to pay and stake node operators, and Chainlink has run several documented pilots with Swift and large financial institutions.

Utility Lens

What Chainlink actually does

Supplies smart contracts with reliable off-chain data and lets apps and institutions send instructions and tokens between different blockchains.

Real-world usage
establishedChainlink price feeds have secured a large share of DeFi lending and trading for years, and institutional pilots add a second line of real use.
Token necessity
integralLINK is used to pay and stake node operators and enterprise revenue is converted into LINK, but many users and sponsors pay for services indirectly or in other assets.
Decentralization
moderateEach data feed is served by multiple independent node operators, but operators are selected rather than permissionless and Chainlink Labs plays a central role in development and upgrades.
Track record
provenMainnet since 2019 with no major exploit of Chainlink's own oracle network, though apps using oracles have occasionally been hit by unusual market moves.

How we rate

What it’s used for

Lending and trading apps across many blockchains rely on Chainlink price feeds to value collateral and trigger liquidations. Its Cross-Chain Interoperability Protocol (CCIP) moves tokens and messages between chains, and banks and market infrastructures have used Chainlink software in tokenization pilots with Swift. Node operators are paid for these services, and part of enterprise revenue is converted into LINK held in a strategic reserve.

Role of the LINK token:

paymentsstaking security

Evidence of real use

  • In 2023 Swift ran interoperability experiments with Chainlink and more than a dozen financial institutions to instruct tokenized-asset transfers across public and private blockchains. Source
  • Swift, UBS Asset Management and Chainlink completed a pilot under Singapore's Project Guardian settling tokenized fund subscriptions and redemptions using Swift messages. Source
  • Chainlink launched the Chainlink Reserve in August 2025, accumulating LINK using revenue from enterprise and on-chain sources. Source
  • In September 2026 Chainlink announced it is working to let banks connect to Swift's blockchain ledger through the Chainlink Runtime Environment. Source

ISO 20022: claim vs. reality

What’s documented
Chainlink has documented collaborations with Swift, whose network now uses ISO 20022 for cross-border payments: 2023 interoperability experiments, a 2024 tokenized-fund pilot with UBS Asset Management, 2025 corporate-actions work in which Chainlink tools produce ISO 20022 messages, and a 2026 effort to connect banks to Swift's blockchain ledger. Chainlink is not on the ISO 20022 Registration Management Group roster.
What you’ll hear online
LINK is an 'ISO 20022 coin' and banks moving to ISO 20022 will have to buy LINK.
Reality check
ISO 20022 is a bank messaging standard; it does not certify or endorse any cryptocurrency. Chainlink's Swift work is real and documented, but it shows banks using Chainlink software alongside ISO 20022 messages, not an ISO requirement to hold LINK.

ISO 20022, explained

How Chainlink works

Blockchains cannot fetch information from the outside world on their own. Chainlink solves this with decentralized oracle networks: groups of independent node operators each pull data from several sources, combine their answers, and publish a single value on-chain. If one operator or source is wrong, the aggregate stays accurate, which matters when millions of dollars of loans depend on a price.

CCIP extends the same idea to communication between blockchains. A contract on one chain can send tokens or instructions to another, with separate node networks checking the transfer. The Chainlink Runtime Environment, launched in November 2025, lets institutions build workflows that combine these services with their own systems. CCIP 2.0, announced in 2026, is aimed at institutions with stricter security and compliance needs. Apps can pay CCIP fees in LINK or certain other tokens.

LINK is the network's payment and security token. Node operators earn fees, and stakers lock LINK to back the reliability of certain services. In pilots with Swift, banks kept using Swift messaging while Chainlink software handled the on-chain side. Chainlink's fee model converts some enterprise revenue into LINK held in the Chainlink Reserve rather than sold. In the corporate-actions work, Chainlink tools turned data into ISO 20022 messages that banks could process with their existing systems.

Key moments

  1. 2017Chainlink publishes its whitepaper and sells LINK in a token sale.
  2. 2019Chainlink mainnet launches with its first price feeds.
  3. 2023CCIP launches and Swift publishes results of interoperability experiments run with Chainlink.
  4. 2025The Chainlink Reserve and the Chainlink Runtime Environment launch.
  5. 2026Chainlink announces work to connect banks to Swift's blockchain ledger.

Supply

LINK has a fixed total supply of 1 billion tokens, all created at launch. A large share was held for node operator incentives and by the company, released over time. The Chainlink Reserve buys LINK with service revenue and holds it rather than burning it.

Risks to understand

  • Dependency risk: if a widely used feed reported a bad price, many apps could be affected at once.
  • Token value capture: enterprise and Swift adoption does not automatically require large LINK purchases; it depends on Chainlink's fee and reserve model.
  • Concentration: Chainlink Labs and its partners hold significant LINK and steer development.
  • Competition from other oracle and interoperability providers.

Chainlink FAQ

What does an oracle do?

An oracle brings information from outside a blockchain, such as asset prices or interest rates, onto the chain so smart contracts can use it.

Does Chainlink work with Swift?

Yes. Swift and Chainlink have run several documented pilots since 2023 on moving and servicing tokenized assets using existing Swift messaging.

Can I stake LINK?

Chainlink offers staking for LINK holders with limited capacity, which backs the performance of certain services in exchange for rewards.

Sources

  1. Connecting blockchains: Overcoming fragmentation in tokenised assets (Swift results report) — Swift
  2. Swift, UBS Asset Management and Chainlink successfully complete innovative pilot — Swift
  3. The Swift and Chainlink Partnership — Chainlink
  4. Chainlink Is Enabling Financial Institutions to Connect to Swift's Blockchain Ledger — Chainlink
  5. Introducing the Chainlink Reserve — Chainlink
  6. Chainlink Runtime Environment Now Live — Chainlink
  7. Registration Management Group member list — ISO 20022 Registration Authority

Last reviewed October 4, 2026 by The Crypto Guide editorial team. Utility Lens ratings are editorial judgments, not investment advice. Market data from CoinGecko. Spot an error? Request a correction.