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Most Accurate Real-Time Crypto Data for Institutions
Data Engineered with Oracles.
Adopted by Financial Institutions.
Blocksize aggregates real-time pricing from 70+ exchanges into one reference price per pair, across 9,000+ instruments, each validated through oracle consensus. Tokenized stocks are priced the same way, 24/7. Used by asset managers, funds, trading firms and brokers for NAV calculation, fair-value marks, best-execution benchmarking and risk management.
BTC/USD: realtime_vwap
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ETH/USD: realtime_vwap
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SOL/USD: realtime_vwap
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Proven on-chain. Delivered off-chain.
Our feeds are validated on-chain by independent node operators and delivered off-chain for mission-critical use cases.
9000+
Instruments Covered
70+
Aggregated Exchanges
<250ms
Real-Time Aggregation
5M+
Transactions
Crypto feeds
One price per pair from 70+ exchanges- Real-time VWAP
- Bid/ask
- State price
- Historical prices
- Trades
Our clients and partners
Why Blocksize?
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Oracle-Grade
We operate as a first-party data publisher across Chainlink, Pyth, RedStone and five more networks. Every price update is validated by node operators and verified through on-chain consensus, at every block.
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Multi-Venue Fair Value
Even top-tier exchanges fall within a tight fair-value corridor only about 25% of the time. Single-source feeds are incomplete. That is why we aggregate prices from 70+ exchanges across 9,000+ pairs in real time.
Proven On-Chain
The same feeds that are published and validated across eight leading oracle networks are delivered directly into institutional systems via API.
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Accuracy First
Our sub-250 ms multi-venue VWAP updates multiple times per second. In crypto markets, exceeding settlement speed yields no practical advantage, while improving accuracy yields immense benefit. Every update arrives validated.
Off-Chain
Whitepaper
Real‑Time Crypto Aggregation Matters More Than Ever
Single-exchange data in crypto is incomplete. A global, 24/7, fragmented market makes one-feed setups unfit for trading, risk and valuation. The paper sets out real-time, market-wide aggregation.
Pricing Packages
Prices for Mission-Critical Use Cases
The Business tier is built for firms running valuation, best execution and surveillance workflows daily — where a pricing error doesn't just look wrong, it lands in a report someone has to sign. It adds AMM state prices and trade events on top of the full VWAP and bid/ask set, a commercial licence, ten API keys, and three months of history for reporting and backtesting. Same data quality as every other tier; more capacity, more coverage, and Slack support when something needs an answer the same hour.
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Developer
For simple apps, scripts, or dashboards that need reliable crypto prices without complexity.
€49 / month
Billed monthly · €499 if billed yearly
€499 / year
Billed yearly · save €89 a year
- Assets
- Crypto RWA
- Price types
- VWAP, bid/ask, daily close (NAV)
- Active feeds
- 5
- Historical data
- 7 days
- Seats
- 1
- Support
- Docs, email
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Start-Up
For teams building products that rely on consistent, scalable pricing across multiple assets.
€299 / month
Billed monthly · €3,049 if billed yearly
€3,049 / year
Billed yearly · save €539 a year
- Assets
- Crypto RWA
- Price types
- VWAP, bid/ask, daily close (NAV)
- Active feeds
- 50
- Historical data
- 1 month
- Seats
- 5
- Support
- Docs, email
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Business
RecommendedFor teams running best execution, benchmarking, surveillance, or risk management.
€799 / month
Billed monthly · €8,149 if billed yearly
€8,149 / year
Billed yearly · save €1,439 a year
- Assets
- Crypto RWA
- Price types
- VWAP, bid/ask, daily close (NAV), AMM state prices
- Active feeds
- 350
- Historical data
- 3 months
- Seats
- 10
- Support
- Docs, email, Slack (4 h response)
Enterprise
Custom
For institutions, oracles, and systems requiring oracle-grade live aggregation and accuracy.
- Unlimited feeds
- AMM state prices
- Commodities
- HTTP delivery
- History on request
- Custom seats
- Slack (1 h response)
- 24/7 phone escalation
- Custom feeds on request
- 99.9% uptime SLA
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 (...)
Will Janensch
Director Data Providers
The support and response times have been fantastic with Blocksize.
Arjun Somvanshi
Reliability Engineer
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
Behind the Data
Blocksize Business Data FAQ
Common questions before our collaboration
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.
If any part of your portfolio touches DeFi, on-chain derivatives, lending protocols, structured products with crypto underlyings, the prices that govern those positions are set by oracle consensus, not by any single exchange. A trader might see one price on Binance, but liquidations, settlements, and margin calls on-chain are triggered by the oracle price. Blocksize delivers those exact oracle-grade prices off-chain into your systems, so your risk models reflect the same reality that smart contracts act on.
Download our Whitepaper to learn more.
A single exchange shows its own order book, which can drift from the market. On even the most liquid pair, only about 25% of a top exchange's quotes sit within multi-venue fair value, and during stress a venue can diverge by 10+ bps. Listing sites show a reference average for display. Blocksize aggregates 70+ venues in real time, filters outliers and down-weights drifting sources, so the result is the price the whole market agrees on.
As a first-party oracle data publisher, every price update we produce is verified by node operators across networks such as Chainlink, Pyth and RedStone. Submissions that deviate from consensus are rejected. Quality is enforced continuously, at every block.
Crypto markets never close, so there is no official closing price to mark against. Our 24-hour and 30-minute VWAP windows provide a documented, reproducible reference price for any timestamp, aggregated across 70+ venues. Firms use Blocksize as the pricing input for NAV calculation, fair-value marks and LP reporting. The classification itself remains the responsibility of the firm and its auditors.
Yes. Historical VWAP and bid/ask snapshots are available across all covered pairs, with 30-minute VWAP snapshots designed for reporting, audit trails and backtesting. Depth is 7 days on Developer, 1 month on Start-Up, 3 months on Business, and extended history on Enterprise.
Blocksize provides the market data input. The regulatory classification stays with the firm. Our VWAP methodology is published, every price carries a timestamped audit trail, and outputs are reproducible after the fact, which is what auditors look for in a pricing source. Firms use our data within their own best-execution, valuation and reporting processes.
Yes. RWA feeds price 35 tokenized stocks, gold and silver from centralised exchange quotes, 24/7, through the same API. RWA perp feeds are coming soon.
Data
Product Brochure
Towards a Unified View of Fragmented Markets - Together
In crypto, data quality is no longer about raw speed from one exchange; it is about real-time accuracy across the whole market. Get a glimpse of our view.