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The CantonCap API
Every figure on this site is one request away, with its venues and the moment it was calculated. Every plan reaches every public endpoint; pay by card.
Choose a plan
Developer
For an integration, a dashboard, a research desk.
60 requests per minute
31 days of history per request
Pages of up to 100 rows
1 concurrent stream
Every public REST and streaming endpoint
Email support
Pro
For products that read the market continuously.
300 requests per minute
31 days of history per request
Pages of up to 500 rows
5 concurrent streams
Every public REST and streaming endpoint
Priority support
Enterprise
Higher rates, more streams, an SLA, invoicing and procurement paperwork, and a named contact. Priced per integration.
Already Have a Key?
Manage the subscription, payment method and invoices in the customer portal, or read how the key is used.
What a Key Buys
35 Public Endpoints
Assets, markets, pools, venues, global metrics, status and issuers, over REST, plus six WebSocket channels for tickers, books, trades and candles.
Provenance on Every Figure
Each response says which venues contributed, which observations were rejected and why, and the methodology version behind the number.
Exact Decimals, Never Floats
Every monetary value is a decimal string. Canton amounts exceed what a float can carry, so the API never rounds one on your behalf.
Minute Refresh, 31 Days Back
Reference prices refresh every minute. Candles reach 31 days back at every interval from one minute to one week.
The Request Behind the Home Page
This is the call the market table is built from. Paste it with your key and you have the same figures, the same provenance, in three lines.
- Every monetary value is an exact decimal string, never a float.
- Every figure carries its basis: source, method and time.
- Reference prices refresh every minute; candles reach 31 days back.
