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Oracle
Chainlink
First-Party Crypto Data for Chainlink
Powering Chainlink Oracles with Real-Time Crypto Data
Blocksize is a first-party data provider in the Chainlink oracle network. We stream real-time crypto price data to 25 Chainlink Oracles, powering feeds across Ethereum, Polygon, Avalanche, and zkSync. Integrated via Chainlink’s adapter framework, our data helps secure decentralized applications with trusted on-chain pricing.
NEW: State Pricing Feature
Many crypto assets trade in environments where real liquidity is sporadic.
Blocksize's new State Pricing infers the price at which the market would trade if meaningful liquidity were present.
Data Publishing in Numbers
#Price Feeds
Data Report Uptime
100%
Real-Time Aggregation
70+ (D)Exchanges
Oracle TVS Secured
>75%
DONs Supported
8
Slashing Events
0
#Chainlink Oracles Powered
200+
Liquidity is scattered. Prices are aggregated between 70+ exchanges live.
Real-Time Aggregation
Individual trades are filtered using confidence intervals.
Outlier Detection
Markets that show sustained drift, staleness, or unreliable volume are dynamically excluded.
Dynamic Source
We have clearly defined rules in place to address rare situations where data is delayed or missing.
Contingency Logic
All methodology rules are overseen by the Blocksize Data Committee.
Governance by Design
Customer Voices
Blocksize has proven to be a reliable and forward-thinking data infrastructure provider, delivering institutional-grade access to high-quality digital asset market data. Their commitment to transparency and robust infrastructure has made them a key contributor to strengthening the Chainlink ecosystem (...)
Feedback from the Chainlink Ecosystem
We believe the future of finance is decentralized. At Blocksize, we contribute to the Chainlink network by providing real-time crypto data to 25 Chainlink oracles. Here is some of their feedback.
Oracle-Verified Accuracy For Everyone
Interested in real-time crypto data?
Always On
Chainlink RPC Performance
Our RPC infrastructure is built for measurable performance and institutional-grade reliability, always on to secure stake and make slashing events non existent.
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Behind the Node
Chainlink Network FAQs
From validator performance to compliance and infrastructure standards, here’s how we safeguard institutional access to the Chainlink network.
If any part of your portfolio touches DeFi, on-chain derivatives or lending protocols, the prices behind those positions are set by oracle consensus. Liquidations, settlements and margin calls on-chain follow the oracle price, whatever one exchange shows. Blocksize delivers those oracle-grade prices off-chain into your systems, so your risk models match what smart contracts act on. Download our Whitepaper to learn more.
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Our feeds are validated across eight leading oracle networks, which together secure around 75% of all value secured by oracles, and delivered off-chain to institutional systems. Compliance, risk and trading teams receive the same oracle-grade prices that govern DeFi smart contracts.
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As a first-party oracle data publisher, every price update we produce is independently verified by multiple node operators across decentralized oracle networks like Chainlink, Pyth, and RedStone. Submissions that deviate from consensus are rejected, and operators providing inaccurate data face financial penalties. This creates continuous, real-time quality enforcement in every single block.
A single exchange only shows its own order book, which can drift from the real market: on even the most liquid pair, only about 25% of a top exchange's quotes sit within the true multi-venue fair value, and during stress a venue can diverge by 10 basis points or more. Listing sites like CoinGecko show a reference average, not a real-time, validated feed you can build on. We aggregate across 70+ venues in real time, filter outliers, and down-weight drifting sources, so you get the consensus price the whole market agrees on, not one venue's version of it.
Disclaimer: Blocksize is an independent validator and is not affiliated with or endorsed by the Chainlink Foundation.