Real-Time Crypto Data
Engineered for Oracles. Adopted by Financial Institutions.
Blocksize is a leading provider of 9000+, real-time crypto price feeds from 70+ (d)exchanges. Developed to meet the strict accuracy standards of decentralized oracle networks - where data quality is enforced by consensus.
BTC/USD: realtime_vwap
$...
ETH/USD: realtime_vwap
$...
SOL/USD: realtime_vwap
$...
Market Coverage in Numbers
Crypto data adopted by leading networks — with volume, coverage, and validation to match.
Tier 1
Pyth Data Publisher
>80%
TVS Secured
70+
(D)exchanges
9000+
Price Pairs
Blocksize Methodology
Accuracy You Can See.
Performance You Can Trust.
Real-time, aggregated price feeds benchmarked against top exchanges — built for mission-critical use cases to avoid one-sided market inaccuracies.
Price Provider Selection
Live Price Feed Comparison
Outlier Detection
Individual trades are filtered using confidence interval models. If a trade price significantly deviates from the statistical norm, it is excluded.
Dynamic Source
We continuously monitor exchange behavior for consistency and accuracy. Markets that show sustained drift, staleness, or unreliable volume are dynamically excluded.
Contigency Logic
We have clearly defined rules in place to address rare situations where data is delayed, missing, or unavailable — such as during low liquidity events or extraordinary market conditions.
Governance by Design
All methodology rules are overseen by the Blocksize Data Committee. Inclusion of new data sources or methodological changes follow formal review — combining automation with expert accountability.
Customer Voices
The support and response times have been fantastic with Blocksize.
Arjun Somvanshi
Reliability Engineer, Luganodes
We proudly collaborate with Blocksize to seamlessly integrate their premium, high-fidelity market data into our Chainlink node operations, enhancing the reliability and accuracy of data used in smart contracts
Claudiu Nae
Founder, 01Node
Pricing Packages
Prices for Every Use Case
The best crypto data. No hidden fees. No rate limits. No Firlefanz. Just very good prices.
14 day trial on each package
Real-Time VWAP
The real-time VWAP (Volume-Weighted Average Price) represents the true average price of an asset, weighted by trade volume. Minimal latency updates ensuring traders and analysts get real-time, volume-sensitive pricing data via WebSocket.
$549 per month
30-Minute VWAP
The 30 minute VWAP provides market reference closing prices, calculated by averaging the asset trading prices across all supported exchanges within 30 minute interval (i.e 00:30:00 UTC, 01:00:00 UTC, etc).
$449 per month
24-Hour VWAP
The daily VWAP provides a single, volume-adjusted price point for an asset, calculated over the past 24 hours and updated at 00:00:00 UTC, delivered through a WebSocket API.
$189 per month
Bid/ Ask
This package delivers real-time aggregated buying (bid) and selling (ask) prices across multiple exchanges, helping traders assess market liquidity, price depth, and execution efficiency.
$549 per month
Exchange Data
Access real-time, aggregated bid/ask data from pre-selected exchanges.
$549 per month
Ready to get started?
Can’t find the prices you’re looking for? Please get in contact.