Chainlink Labs has listed three oracle data services on the AWS Marketplace, giving developers a direct path to connect blockchain smart contracts with Amazon cloud infrastructure. The integration, announced on April 24, 2026, addresses what developers call the oracle problem – a technical barrier preventing blockchain networks from natively accessing external data sources or APIs.
AWS Blockchain Specialist Simon Goldberg detailed the launch in an AWS blog post, outlining how the three services target distinct layers of the tokenization stack that financial institutions are actively building on cloud infrastructure.
Chainlink Data Feeds: Decentralized Price and Market Data
Chainlink Data Feeds deliver decentralized price and market data aggregated from multiple independent node operators. According to Goldberg, financial institutions can use these feeds for asset valuation, settlement processing, and risk management. The data feeds enable real-time pricing across diverse asset classes without relying on a single point of failure.
Chainlink Data Streams: High-Frequency Data for Real-Time Markets
Chainlink Data Streams handle high-frequency data delivery for onchain systems that need to respond to market movements in real time. Use cases include perpetual futures and options markets that require fast, precise data to settle positions or trigger risk controls. The service maintains persistent connections to price feeds and verifies cryptographic signatures on every update.
Chainlink Proof of Reserve: Automated Reserve Transparency
Chainlink Proof of Reserve gives decentralized finance (DeFi) protocols and stablecoin issuers verifiable onchain attestations confirming that assets are fully backed. The service lets institutions demonstrate reserve transparency and automate token minting without publicly exposing sensitive internal data. This reduces protocol exposure to undercollateralization risk.
Goldberg described two reference architectures in the announcement. The first routes reserve data through Amazon API Gateway and AWS Lambda, with a Chainlink Runtime Environment workflow generating a signed report and submitting an attested reserve value to an Ethereum smart contract. Amazon DynamoDB stores raw source data for audit purposes.
The second architecture runs a Data Streams consumer on AWS Fargate, maintaining a persistent connection to Chainlink price feeds. The system verifies cryptographic signatures, evaluates trading rules, and submits signed transactions to a Central Limit Order Book when configured conditions are met. AWS Secrets Manager and AWS Key Management Service store the private keys required for transaction signing.
Goldberg cited unlocking liquidity, reducing settlement times, and creating new asset classes as core motivations driving financial institutions toward tokenization. The AWS Marketplace listing gives those institutions a procurement path that stays inside existing cloud workflows.
Beyond price data delivery, Chainlink's Decentralized Oracle Network supports cross-chain token transfers, compliance policy automation, and workflow orchestration across both onchain and offchain systems. Developers can access the three services directly through the AWS Marketplace, and Chainlink Labs offers use-case consultations. A reference implementation for the Proof of Reserve architecture is published in the AWS samples repository on GitHub.