Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Certificate recorded, valid to 2026-12-28
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Changed the definition of "check_product_url", "get_deal", "get_list" and 4 more
⟨111 unchanged words⟩ "type":["string","null"]},"product_id":{"type":["string","null"]},"product_url":{"type":["string","null"]}},"required":["deal","lowest_price","lowest_price_store","product_id","product_url"],"type":"object"}
⟨8 unchanged words⟩ ":[{"additionalProperties":false,"properties":{"cons":{"items":{"type":"string"},"type":"array"},"coupon_code":{"type":["string","null" ⟨4 unchanged words⟩ "},{"type":"null"}]},"faq":{"items":{"additionalProperties":false,"properties":{"answer":{"type":"string"},"question":{"type":"string"}},"required":["question","answer"],"type":"object"},"type":"array"},"id":{"type":"string"},"image_url" ⟨55 unchanged words⟩ "},{"type":"null"}]},"product_id":{"description":"For get_product and get_price_history","type":["string","null"]},"product_url":{"description":"Product page with price ⟨4 unchanged words⟩ "type":["string","null"]},"pros":{"items":{"type":"string"},"type":"array"},"published_at":{"description":"ISO 8601","type ⟨10 unchanged words⟩ "type":["string","null"]},"review_summary":{"description":"Summary of reviews and expert opinion","type":["string","null"]},"specs":{"items":{"additionalProperties":false,"properties":{"key":{"type":"string"},"value":{"type":"string"}},"required":["key","value"],"type":"object"},"type":"array"},"status":{"enum":["active","expired" ⟨4 unchanged words⟩ "type":["string","null"]},"summary":{"description":"Price facts: discount, price verdict and history","type":["string","null"]},"title":{"type":"string"},"url" ⟨16 unchanged words⟩ url","image_url","status","purchase_url","product_id","
⟨14 unchanged words⟩ description, price range and its active deals,2510 perpage.page by default (`limit` up to 25). Content in Brazilian Portuguese.
{"$schema":"http://json-schema.org/draft-07/schema#","additionalProperties":false,"properties":{"limit":{"default":10,"description":"Deals per page, up to 25","maximum":25,"minimum":1,"type":"integer"},"page":{"default":1,"maximum":999, ⟨22 unchanged words⟩
⟨8 unchanged words⟩ ":[{"additionalProperties":false,"properties":{"cons":{"items":{"type":"string"},"type":"array"},"faq":{"items":{"additionalProperties":false,"properties":{"answer":{"type":"string"},"question":{"type":"string"}},"required":["question","answer"],"type":"object"},"type":"array"},"id":{"type":"string"},"image_url" ⟨28 unchanged words⟩ ,"expired":{"type":"boolean"},"id":{"description":"Deal id, for get_deal","type":"string"},"price":{"description":"BRL","type": ⟨7 unchanged words⟩ "type":"string"}},"required":["id","store","price","coupon_code","expired"," ⟨38 unchanged words⟩ "},{"type":"null"}]},"pros":{"items":{"type":"string"},"type":"array"},"review_summary":{"description":"Summary of reviews and expert opinion","type":["string","null"]},"specs":{"items":{"additionalProperties":false,"properties":{"key":{"type":"string"},"value":{"type":"string"}},"required":["key","value"],"type":"object"},"type":"array"},"summary":{"description":"Price facts: discount, price verdict and history","type":["string","null"]},"url":{"type":"string"}},"required ⟨4 unchanged words⟩ ","lowest_price","lowest_price_store","offers","price_stats","summary","review_summary","pros","cons","specs","faq"],"type":"object"},{"type" ⟨13 unchanged words⟩
⟨15 unchanged words⟩ "format":"uuid","type":"string"},"limit":{"default":10,"description":"Deals per page, up to 25","maximum":25,"minimum":1,"type":"integer"}},"required":["id"],"type":"object"}
Stores on Pechincha.ai as name and slug, for search_deals and list_store_coupons.ThereWithout `query`, only the stores with deals in the last 7 days; there are 1000+ stores:, so pass `query` tofilterfind any other by name.
Search active (not expired) deals on Pechincha.ai,2510 perpage;page by default (`limit` up to 25); with `query` the most relevant come first, ⟨136 unchanged words⟩
⟨15 unchanged words⟩ [a-z0-9.-]*$","type":"string"},"limit":{"default":10,"description":"Deals per page, up to 25","maximum":25,"minimum":1,"type":"integer"},"max_price":{"description":"Maximum price in BRL ⟨111 unchanged words⟩
Added "get_list", "get_similar_deals", "list_coupon_stores" and 3 more; changed the definition of "list_store_coupons" and "search_deals" (8 tools before, 14 now)
⟨70 unchanged words⟩ page on Pechincha.ai","type":"string"},"valid_until":{"description":"ISO 8601, end date reported by the store","type":["string","null"]}},"required":["id","title","price ⟨3 unchanged words⟩ ","coupon_code","published_at","url","image_url","valid_until"],"type":"object"},"type": ⟨24 unchanged words⟩
Search active (not expired) deals on Pechincha.ai,newest25
Changed the definition of "check_product_url", "get_deal", "get_product" and 2 more
⟨21 unchanged words⟩ ,"id":{"type":"string"},"image_url":{"description":"Product photo","type":["string","null"]},"old_price":{"description":"BRL, price before ⟨43 unchanged words⟩ ","store","coupon_code","published_at","url","image_url","purchase_url"],"type":"object"}, ⟨38 unchanged words⟩
Full details of a deal: product photo, price and discount in BRL, store, coupon, ⟨14 unchanged words⟩
Unknown → Live
First tool surface recorded: 8 tools (server version 1.0.0)
https://pechincha.ai/mcp (mcp_streamable_http) — from mcp_registry, with the record
Showing the latest 8 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
⟨51 unchanged words⟩ :"integer"},"query":{"description":"TextWordstodescribingsearchthe item, e.g. \"air fryer\" or \"moletom de capuz azul\"","maxLength":50,"minLength":1,"type":"string"},"sort":{"default":"newest","description":"featured: best deals right now (discount, engagement and freshness); cheapest: lowest price first; popular: most viewed","enum":["newest","featured","cheapest","popular"],"type":"string"},"store":{"description":"Store slug from list_stores, e.g. \"amazon\"","pattern":"^[a-z0-9][a-z0-9.-]*$","type":"string"},"theme":{"description":"Theme slug from list_themes, e.g. \"black-friday\"","pattern":"^[a-z0-9][a-z0-9.-]*$ ⟨4 unchanged words⟩
Get list — A public Pechincha.ai list (https://pechincha.ai/lista/<slug>), such as a gift list someone shared: name, description, price range and its active deals, 25 per page. Content in Brazilian Portuguese.
Get similar deals — Active deals similar to a deal (same kind of product, other brands, models and stores), to compare alternatives or find a cheaper one. Content in Brazilian Portuguese.
List stores with coupons — Stores with active coupon codes on Pechincha.ai, as name and slug. Get the codes with list_store_coupons.
List coupons for a deal — Active coupon codes of the store selling a deal, to check whether one applies to it. Each coupon title states its rule (discount, eligible products or brands, minimum purchase) and valid_until is the end date the store reports: compare them with the deal's title and price before suggesting a code. Content in Brazilian Portuguese.
List themes — Pechincha.ai themes as name and slug, for the theme filter of search_deals: seasonal events (Black Friday, Dia das Crianças...), gift ideas and product niches. Pass `query` to filter.
Search buying guides — Buying guides and articles from the Pechincha.ai blog: title, summary, date and URL. Search in Portuguese with short terms, e.g. "air fryer"; without `query`, the newest posts. Content in Brazilian Portuguese.
⟨21 unchanged words⟩ ,"id":{"type":"string"},"image_url":{"description":"Product photo","type":["string","null"]},"old_price":{"description":"BRL, price before ⟨105 unchanged words⟩ ","store","coupon_code","published_at","url","image_url","status","purchase_url","product_url","price_30d ⟨16 unchanged words⟩
A product across stores: product photo, current offers with prices in BRL, lowest price ⟨13 unchanged words⟩
⟨11 unchanged words⟩ {"id":{"type":"string"},"image_url":{"description":"Product photo","type":["string","null"]},"lowest_price":{"description":"BRL","type": ⟨82 unchanged words⟩ ,"required":["id","name","url","image_url","lowest_price","lowest_price_store","offers","price_stats ⟨16 unchanged words⟩
⟨27 unchanged words⟩ ,"id":{"type":"string"},"image_url":{"description":"Product photo","type":["string","null"]},"old_price":{"description":"BRL, price before ⟨39 unchanged words⟩ ","store","coupon_code","published_at","url","image_url"],"type":"object"},"type": ⟨24 unchanged words⟩
⟨23 unchanged words⟩ store, coupon code if any, publication dateand, the deal page URL and the product photo URL. Content is Brazilian Portuguese, so search ⟨54 unchanged words⟩
⟨21 unchanged words⟩ ,"id":{"type":"string"},"image_url":{"description":"Product photo","type":["string","null"]},"old_price":{"description":"BRL, price before ⟨39 unchanged words⟩ ","store","coupon_code","published_at","url","image_url"],"type":"object"},"type": ⟨23 unchanged words⟩