The Market Calendar
Seasonality by month for 9 markets, S&P 500 day by day this month, and US economic release dates.
Should I use this
Quality & Safety
Findings (2)
- LOWTool 'seasonal_pattern' description lacks action verbin seasonal_pattern
- LOWTool 'economic_calendar' description lacks action verbin economic_calendar
Based on automated analysis of tool definitions and protocol compliance.
Context Cost
This is the approximate number of tokens consumed each time the server's tools are loaded into a model's context. Higher counts reduce the attention available for other tasks.
Install
One-Click Install
Add this to your `claude_desktop_config.json` file:
{
"mcpServers": {
"seasonality": {
"url": "https://marketcalendar.tech/mcp"
}
}
}Remote endpoints
https://marketcalendar.tech/mcpstreamable-httpWhat it can do
Tool inventory
Tools (8)
🟢list_assets
List the markets covered (S&P 500, Nasdaq, Nasdaq-100, Dow, Russell 2000, Bitcoin, Ethereum, crude oil, gold) with their data start dates.
Input Schema
{
"type": "object",
"properties": {}
}🟢monthly_seasonality(asset)
Average and median return, share of years up, best and worst year for each calendar month of an asset. Use for 'what's the best month for X', 'is September bad for stocks'.
Input Schema
{
"type": "object",
"properties": {
"asset": {
"type": "string",
"enum": [
"sp500",
"nasdaq",
"nasdaq-100",
"dow",
"russell-2000",
"bitcoin",
"ethereum",
"crude-oil",
"gold"
]
}
},
"required": [
"asset"
]
}🟢month_detail(asset, month)
Deep dive on one month for one asset: average, median, % of years up, rank among the 12 months, recent years, the cumulative seasonal path through the month, and its strongest/weakest days.
Input Schema
{
"type": "object",
"properties": {
"asset": {
"type": "string",
"enum": [
"sp500",
"nasdaq",
"nasdaq-100",
"dow",
"russell-2000",
"bitcoin",
"ethereum",
"crude-oil",
"gold"
]
},
"month": {
"type": "string",
"description": "1-12 or month name"
}
},
"required": [
"asset",
"month"
]
}🟢day_seasonality(asset, date)
How an asset has done on a calendar date across all years: average return, share of years up, rank among all days. Free for the S&P 500 in the current month; other assets/months return that month's free numbers and a Pro link (pro_required).
Input Schema
{
"type": "object",
"properties": {
"asset": {
"type": "string",
"enum": [
"sp500",
"nasdaq",
"nasdaq-100",
"dow",
"russell-2000",
"bitcoin",
"ethereum",
"crude-oil",
"gold"
]
},
"date": {
"type": "string",
"description": "MM-DD or YYYY-MM-DD"
}
},
"required": [
"asset",
"date"
]
}🟢window_seasonality(asset, start, end)
Every past year's return over a calendar window (start and end MM-DD), with average, median, % of years up, best and worst years. Free for S&P 500 windows inside the current month; otherwise returns the covered months' free numbers and a Pro link (pro_required).
Input Schema
{
"type": "object",
"properties": {
"asset": {
"type": "string",
"enum": [
"sp500",
"nasdaq",
"nasdaq-100",
"dow",
"russell-2000",
"bitcoin",
"ethereum",
"crude-oil",
"gold"
]
},
"start": {
"type": "string",
"description": "MM-DD"
},
"end": {
"type": "string",
"description": "MM-DD, on or after start"
}
},
"required": [
"asset",
"start",
"end"
]
}🟢seasonal_trends(asset, year)
Bullish and bearish seasonal stretches as shown on The Market Calendar. Free: the S&P 500's trends touching the current month; the full year and other assets are Pro (link included).
Input Schema
{
"type": "object",
"properties": {
"asset": {
"type": "string",
"enum": [
"sp500",
"nasdaq",
"nasdaq-100",
"dow",
"russell-2000",
"bitcoin",
"ethereum",
"crude-oil",
"gold"
]
},
"year": {
"type": "integer"
}
},
"required": [
"asset"
]
}🟢seasonal_pattern(pattern)
Statistics for well-known S&P 500 calendar effects: santa-claus-rally, sell-in-may, september-effect, best-days-of-the-year, worst-days-of-the-year, turn-of-the-month, presidential-cycle, january-barometer, options-expiration, pre-holiday, day-of-the-week, midterm-year.
Input Schema
{
"type": "object",
"properties": {
"pattern": {
"type": "string",
"enum": [
"santa-claus-rally",
"sell-in-may",
"september-effect",
"best-days-of-the-year",
"worst-days-of-the-year",
"turn-of-the-month",
"presidential-cycle",
"january-barometer",
"options-expiration",
"pre-holiday",
"day-of-the-week",
"midterm-year"
]
}
},
"required": [
"pattern"
]
}🟢economic_calendar(start, days)
Scheduled US economic releases (FOMC, CPI, jobs, PCE, GDP, PPI, retail sales, ISM, JOLTS) in a date range, with US Eastern times.
Input Schema
{
"type": "object",
"properties": {
"start": {
"type": "string",
"description": "YYYY-MM-DD (default today)"
},
"days": {
"type": "integer",
"minimum": 1,
"maximum": 60
}
}
}Community
Evidence