{"uid":"cap_J_LMlhxmpPjNgvFiNYciT","slug":"api-crushrewards-dev-b16a7dfd","name":"CrushRewards Category Inflation Tracker","description":"Real-time pricing, promotions, and competitive intelligence across US and Canadian retailers — exposed as paid API endpoints and MCP tools that AI agents can call directly, with x402 and MPP micropayments per query.","url":"https://api.crushrewards.dev/v1/analyst/inflation","method":"GET","headers":{},"bodySchema":null,"responseSchema":{"type":"json"},"example":{"request":{"input":{"type":"http","method":"GET","queryParams":{"to":"2024-03-31","from":"2024-01-01","country":"us","category":"grocery","retailer":"walmart","granularity":"weekly"}}},"response":{"meta":{"served_from":"live","schema_version":"v2","freshness_seconds":777664},"country":"us","category":"grocery","currency":"USD","resolved":{"alternates":[],"category_id":"27280","match_source":"exact","category_path":"grocery","match_confidence":1},"department":null,"granularity":"weekly","time_series":[],"overall_change_pct":null}},"exampleRequest":{"to":"2024-03-31","from":"2024-01-01","country":"us","category":"grocery","retailer":"walmart","granularity":"weekly"},"tags":["x402"],"displayCostAmount":"0.02","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"settled","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.02/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.02","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_5Fottaj5LENKioBqU-Me_","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.02","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Tracks category-level retail price inflation over time with configurable daily, weekly, or monthly granularity, returning period-over-period and overall percentage change.","exampleAgentPrompt":"Show me how grocery prices have changed on Amazon in the US over the past 3 months — give me weekly granularity so I can see the period-over-period inflation trend.","exampleUseCases":null,"resultDescription":"Returns a JSON object containing the queried category, country, currency, and granularity, plus a time_series array where each entry has a period date, avg_price, median_price, product_count, observation_count, and change_pct versus the prior period. Also includes an overall_change_pct summarizing the full date range.","failureModes":["Missing required 'category' query parameter returns a validation error","Invalid date format for 'from' or 'to' fields returns a schema error","Unsupported country code (not 'us' or 'ca') returns an enum validation error","Unsupported retailer name returns an enum validation error","Date range with no data for the specified category may return an empty time_series array","Network or payment failure may result in a 402 or 5xx response"],"whenToPreferThis":"Use this endpoint when you need to understand how prices in a specific product category have changed over time at a configurable granularity. It is ideal for inflation trend analysis, market research, and monitoring retail price movements. Prefer this over point-in-time pricing endpoints when the goal is to see directional change across periods rather than current prices. It complements the retailer price index endpoint (which normalizes by retailer) by providing raw category-level inflation data.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-09-15T12:39:22.472Z","isFirstParty":false}