Settlement-Grade Reliability at Transparent Pricing
The same feed that powers Bloomberg Terminal and LSEG — accessible to every team.
BVIV and EVIV settle OTC options (Arbelos × B2C2, Jun 2024) and Polymarket prediction markets (Jan 2026), and clear perpetuals on Bitfinex, Hyperliquid and gTrade — Read the methodology paper ↗︎
- ✓Free API key — recommended on every request
- ✓REST access to BVIV, EVIV, MVIV + public indices
- ✓60-minute & daily resolutions
- ✓TradingView, Bloomberg, LSEG distribution
- ✓All methodology whitepapers
- ✓Enterprise evaluation key on request
- ✓Settlement-grade index licensing
- ✓Direct SLA + uptime guarantees
- ✓Custom indices and basket design
- ✓On-prem / colo distribution
- ✓Dedicated solutions engineer
All tiers include access to live charts, methodology whitepapers and the public REST endpoint. The BVIV package adds real-time delivery and WebSocket streaming for BVIV and BVUS; Pro and Enterprise add them for the full index family. The BVIV package and Pro are rungs on one ladder — upgrading swaps one for the other, so you are never billed for both.
Common Questions
Every plan can have one, including Public: sign in and generate a free key from your profile in seconds, no card required. The public endpoint still answers without a key, but we recommend sending one — it identifies your traffic as yours, and it is the same key that widens the instant you subscribe, so nothing in your code changes on upgrade. Pro and the BVIV package are paid self-serve upgrades, no sales call needed. The Enterprise API is separate and contact-gated: request an enterprise evaluation key to test the data.
Both use the same self-serve API and the same key. Public is free, with 60-minute and daily resolutions. Pro is real-time over REST and WebSocket, adds intraday resolutions, full history and the complete index family (realized vol, prime rate, IV).
Everything Pro gives you, scoped to the Bitcoin implied-vol complex: BVIV and BVIV-US (BVUS) across every term — 1D, 7D, 14D and 30D — real-time over REST and WebSocket, with intraday resolutions and full history. Other indices stay on the public free-tier limits. It is $199 per month, or $159 per month billed annually, and upgrades to Pro whenever you need the full index family.
Yes — switch plans from the billing portal on your profile. Pro is a superset of the BVIV package, so it replaces that subscription rather than adding to it; you are never billed for both, and your existing API key simply widens to the full index family.
Yes — that is the Enterprise API: settlement-grade licensing, direct SLAs, on-prem or co-located distribution and custom indices. Request an enterprise evaluation key and a solutions engineer will scope terms.
Pro is billed monthly with no commitment, self-serve from the portal. Enterprise contracts are custom — annual by default, with usage-based components available.
Yes — both self-serve plans start with a 14-day free trial, and checkout begins it straight away. The trial is one per customer rather than one per plan, so it applies to whichever you pick first. No sales call required, and the Public endpoint stays open either way.
Need Custom Indices, Licensing or Co-Located Distribution?
Enterprise teams use Volmex indices as settlement references for ETFs, structured products and on-chain derivatives, over a separate settlement-grade API. Request an enterprise evaluation key and a solutions engineer will scope the integration with you.