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Syntalic Price History
x402shopping
Syntalic Price History is a paid API for AI agents from api.syntalic.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).
Returns historical price observations for a product over a date range, including current price, period low/high/avg, price trend, good-deal flag, and a time-series for charting.
Price / call$0.01
Success—
StatusUnknown
How this service works
Get historical price observations for a product within a date range. Returns current price, period low/high/avg, trend (rising/falling/stable), good-deal flag, and an observation time-series for charting.
Output
Returns a JSON object with the query string and a history array of time-series price observations. Each observation includes timestamps and price data points. Top-level summary fields include current price, period low, period high, period average, trend classification (rising/falling/stable), and a boolean good-deal flag suitable for charting or purchase-timing decisions.
Example use cases
Example prompt
“Show me the price history for AirPods on Amazon in the US over the last 30 days — I want to know the current price, the period low and high, whether the price is trending up or down, and if it's a good deal right now.”
Technical details
Endpoint
GEThttps://api.syntalic.com/v1/shopper/price-historyWhen to prefer
Use this endpoint when you need historical price trend data for a specific product, want to determine if a product is currently at a low price, need to chart price fluctuations over a custom date range, or want to evaluate purchase timing. Prefer this over Best Price (which only gives current lowest price) when trend context, volatility, or period statistics matter. Choose this over Inflation or Price Dispersion when you want product-level history rather than category-level aggregates.
Side effects
- No results found for obscure or misspelled product queries — returns empty history array
- Invalid date range (from > to) — returns 400 validation error
- Unsupported country code — returns 400 enum validation error
- Unsupported retailer value — returns 400 enum validation error
- Payment failure or insufficient USDC balance — returns 402 Payment Required
- Rate limiting if too many requests in short period — returns 429 Too Many Requests
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| qrequired | string | Search query (product name, keyword, or category term) |
| to | string | End date (ISO 8601, defaults to now) |
| from | string | Start date (ISO 8601, defaults to 30 days ago) |
| country | string | Country (us or ca) |
| retailer | string | Filter to a specific retailer |
Output
Schema · Response
| Field | Type | Description |
|---|---|---|
| query | string | |
| history | array |
Tags
x402shopping
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