Live fast food prices from 10 US chains: Big Mac Index by state, chain medians & price changes.
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The Fast Food Index Big Mac index: the national median Big Mac price across priced US McDonald's restaurants, its range and extremes, and the median by state with each state vs the national figure. Data collected weekly from McDonald's own ordering system.
This tool takes no arguments.
This tool isn't marked read-only, so it may change something on the server or in an account you connected.
Pick your client. Values in capitals, like YOUR_TOKEN, are yours to fill in.
Run in a terminal
claude mcp add --transport http fast-food-index https://api.fastfoodindex.com/mcp
The Fast Food Index Big Mac index: the national median Big Mac price across priced US McDonald's restaurants, its range and extremes, and the median by state with each state vs the national figure. Data collected weekly from McDonald's own ordering system.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}Every chain Fast Food Index prices (10 US chains): flagship item, its national median price and range, and restaurants priced. Data collected weekly from the chains' own ordering systems.
No arguments.
{
"type": "object",
"properties": {},
"additionalProperties": false
}The price of one menu item at one chain: national median, typical range, restaurants priced, and the cheapest / priciest states (for flagship items) or stores. Chain accepts names like "McDonald's", "taco bell", "bk".
| Argument | Type | Description |
|---|---|---|
| item* | string | Menu item name, e.g. "Big Mac" or "Whopper". |
| chain* | string | Chain name or slug, e.g. "McDonald's" or "taco-bell". |
{
"type": "object",
"required": [
"chain",
"item"
],
"properties": {
"item": {
"type": "string",
"description": "Menu item name, e.g. \"Big Mac\" or \"Whopper\"."
},
"chain": {
"type": "string",
"description": "Chain name or slug, e.g. \"McDonald's\" or \"taco-bell\"."
}
},
"additionalProperties": false
}The latest verified fast-food price changes: gated repricing events (same item, same old and new price, at 40+ restaurants) from the most recent weekly collection round.
| Argument | Type | Description |
|---|---|---|
| limit | integer | How many events to return (1–25, default 10). |
{
"type": "object",
"properties": {
"limit": {
"type": "integer",
"maximum": 25,
"minimum": 1,
"description": "How many events to return (1–25, default 10)."
}
},
"additionalProperties": false
}One US state: its fast-food price index position (percent vs the national basket) and the flagship item medians in that state (Big Mac, Whopper, Chick-fil-A Chicken Sandwich, Crunchwrap Supreme where priced). Accepts a state name or abbreviation.
| Argument | Type | Description |
|---|---|---|
| state* | string | State name or 2-letter abbreviation, e.g. "Texas" or "TX". |
{
"type": "object",
"required": [
"state"
],
"properties": {
"state": {
"type": "string",
"description": "State name or 2-letter abbreviation, e.g. \"Texas\" or \"TX\"."
}
},
"additionalProperties": false
}Search priced menu items by name across all 10 chains (e.g. "nuggets", "frosty", "burrito"). Returns matching items with national medians and restaurant counts.
| Argument | Type | Description |
|---|---|---|
| chain | string | Optional: restrict to one chain (name or slug). |
| query* | string | Item name or fragment to search for. |
{
"type": "object",
"required": [
"query"
],
"properties": {
"chain": {
"type": "string",
"description": "Optional: restrict to one chain (name or slug)."
},
"query": {
"type": "string",
"description": "Item name or fragment to search for."
}
},
"additionalProperties": false
}We read every tool's name, description and inputs the way the model will, looking for instructions hidden from you. A clean result means no warning signs, not a guarantee. Scanned Nov 15, 2026.
No readOnlyHint / destructiveHint annotations, so clients can't tell a read from a write without asking.
Fix: Add annotations to each tool, e.g. { readOnlyHint: true } for tools that only read.