Eyewall Markets · Market Compendium
Pricing
Three subscription tiers for the research and data product. Public reference pages — events, categories, venues, methodology — remain free and require no account. Paid tiers unlock email notifications about cross-venue price differences, personal watchlists, deeper historical price data, and (on the Edge tier) read-only programmatic access to the market reference dataset. Sign in at /account to subscribe.
Eyewall Markets is a market-data and research subscription. It is not a broker, exchange, trading platform, or financial advisor. The site does not place orders on any venue and holds no positions. Subscribers receive descriptive notifications when published prices on the same event differ across venues; whether to act on that information at any third-party venue is the subscriber's decision and subject to that venue's own eligibility rules.
§ Tier comparison
Starter
$49/mo
One category. Email notifications when prices on the same event diverge across venues.
- Alert rules
- 5
- Daily alert cap
- 30
- Persistence floor
- 5 minutes
- Delivery channels
- Spread history
- 30 days
- Watchlists
- —
- REST API access
- —
Pro
$149/mo
All categories. Higher rate limits. Watchlists across venues.
- Alert rules
- 25
- Daily alert cap
- 200
- Persistence floor
- 2 minutes
- Delivery channels
- Email · Webhook
- Spread history
- 90 days
- Watchlists
- 25 events
- REST API access
- —
Edge
$499/mo
All categories, highest rate limits, priority delivery, REST API + MCP server.
- Alert rules
- 100
- Daily alert cap
- Unlimited
- Persistence floor
- 0 minutes
- Delivery channels
- Email · Webhook · API inbox
- Spread history
- Full history
- Watchlists
- 100 events
- REST API access
- /api/v1/* (10 req/sec)
- MCP server
- Claude · Cursor · Zed
§ Billing
- All prices in USD. Sales tax / VAT calculated and remitted by Paddle as Merchant of Record on behalf of XCH1TB, LLC (dba Eyewall Markets).
- Subscriptions auto-renew monthly on the calendar day of the original signup. Failed renewals retry per Paddle's standard schedule before the subscription lapses.
- Cancel any time from your account page — it links to the Paddle customer portal where the cancellation takes effect at the end of the current billing period.
- Refunds: see refund policy.
- Payment methods accepted are whatever Paddle supports for your jurisdiction (Visa, Mastercard, Amex, Apple Pay, Google Pay, PayPal, SEPA, and others).
§ What's included
Notification rules. Each rule describes a price-divergence condition — a category of event, a minimum size of the published price difference between two venues, a minimum 24h volume on each side, a minimum duration the difference has to persist. When an observation matches, Eyewall Markets sends a descriptive email naming the event, the two venues, the published prices, and the observation timestamp. Each tier caps how many rules a subscriber may keep enabled.
Daily notification cap. The maximum number of notification emails Eyewall Markets sends a single subscriber in one UTC day. Beyond the cap, additional matches are recorded as suppressed in the account log so subscribers can see what was filtered.
Persistence floor. The shortest duration a rule may require before firing. The Starter floor of 5 minutes filters transient observations; Edge subscribers may opt into single- observation matching.
Watchlists. Pro and Edge subscribers may pin canonical events and see their current cross-venue prices and 24h price movement on the account dashboard. Reference only; no notifications.
Historical price data. Each tier sets how far back a subscriber may query the recorded cross-venue price observations. Edge subscribers see the full retained history.
REST API access on the Edge tier is the read-only data surface at /api/v1/*: events, recorded cross-venue price observations, the venue reference table, market detail, and a subscriber's notification inbox. Rate-limited at 10 requests per second per api key.
MCP server on the Edge tier exposes the same dataset as seven Model Context Protocol tools, drop-in for Claude Desktop, Claude Code, Cursor, Zed, and any other MCP-aware host. A subscriber pastes one config block into their LLM client; the client can then read the event ontology, current cross-venue prices, and the subscriber's own notification inbox as native tool calls. Source at github.com/xch1tbllc/storm-mcp; installable via npx -y @eyewallmarkets/storm-mcp. MIT-licensed; uses the same Edge-tier api key.
§ What no tier includes
- Eyewall Markets does not place orders on a subscriber's behalf. There is no funded account on this site. Every venue listed is reached by the subscriber directly with their own credentials at that venue.
- Eyewall Markets is not a broker, not an exchange, not an investment advisor, not a financial, legal, or tax advisor. Notifications describe published prices; they are not buy or sell recommendations.
- Published prices are snapshots from each venue's own public read endpoints and may be stale at the moment a subscriber visits a venue. Eyewall Markets does not warrant fillable depth at any price reported.
- Venue eligibility (including Polymarket's CFTC-constrained US availability and Betfair's US geo-block) is the subscriber's responsibility, governed entirely by the venue and the subscriber's local law.
§ See also
- Methodology — how cross-venue prices are normalised and the limits of any comparison.
- About — what Eyewall Markets is and is not.
- Terms — the operating posture.
- Privacy — what data is collected and why.
- Refunds — refund policy.