# Espresso Steals > Espresso gear price history: live Amazon prices, 2+ years of daily data, BUY calls at verified lows. - name: com.espressosteals/catalog - version: 1.0.0 - connection class: R0 (autonomous) - trust: 83/100 flags: no-repository - quality: 80/100 (good) - owner: not claimed - descriptor: https://api.protogrid.dev/v1/servers/com.espressosteals%2Fcatalog - tools: https://api.protogrid.dev/v1/servers/com.espressosteals%2Fcatalog/tools **An agent can connect right now, no human step.** Remote endpoint, no authentication, reachable on the last probe. ## Connection (mcpServers) ```json { "mcpServers": { "catalog": { "type": "http", "url": "https://espressosteals.com/api/mcp" } } } ``` ## Trust - hygiene: 80 - liveness: 100 - freshness: 100 - provenance: 55 - drivers: +dns-namespace +website +reachable +uptime-100% +updated-17d-ago -no-repository - Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. ## Quality 80/100 (good) ### protocol: 75 (weight 25) - warn `protocol.modern`: newest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28 - n/a `protocol.stateless`: only applies to 2026-07-28 servers - pass `protocol.transport`: streamable HTTP - n/a `protocol.list_ttl`: only applies to 2026-07-28 servers ### authorization: n/a (weight 15) - n/a `auth.prm`, `auth.as_metadata`, `auth.cimd`: no remote uses OAuth - n/a `auth.secret_in_url`: no templated URL ### tool hygiene: 100 (weight 30) - pass `tools.descriptions`: every tool has a description - pass `tools.description_length`: descriptions are concise - pass `tools.schemas`: every tool has an object input schema - pass `tools.annotations`: 4 of 4 tools declare readOnlyHint or destructiveHint - pass `tools.directory_hints`: every tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint - pass `tools.token_cost`: about 961 tokens to load every tool - pass `tools.api_dump`: tools are not a one-to-one API dump ### stability: 50 (weight 15) - pass `stability.changes`: 3 tool changes in 30 days - fail `stability.rug_pull`: 1 tools kept their name but changed most of their description in 30 days; review before trusting them ### dependencies: n/a (weight 15) - n/a `deps.known_vulns`, `deps.mcp_sdk_version`, `deps.resolvable`: no npm or PyPI package - tools: 4, about 961 tokens to load them all - tool set hash: eb124307c06ea01a30466bd0aaf6a81a - tools last changed: 2026-10-12T21:35:28.779Z - badge: [![protogrid quality](https://protogrid.dev/badge/com.espressosteals/catalog.svg)](https://protogrid.dev/servers/com.espressosteals/catalog) - Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. ### Tool changes - 2026-10-12 `get_product` changed (description, inputSchema) - before: Full detail for one tracked product by slug: community sentiment, reference price and basis, date of the latest price observation, portafilter size (machines) or accessory size (sized accessories), superautomatic / manual-lever / hand-grinder flags, product URL and Amazon link. - after: Full detail for one product by slug: community sentiment, reference price and basis, date of the latest price observation, portafilter size (machines) or accessory size (sized accessories), superautomatic / manual-lever / hand-grinder flags, product URL and Amazon link. A known product with no price returns price null, the reason, and priced alternatives. An unknown slug returns did_you_mean. - 2026-10-12 `search_catalog` changed (description, inputSchema) **meaning changed** - before: Search the espresso gear this site tracks (every result has a live Amazon price and, when it is at a genuine low, a BUY call computed from its own price history; otherwise no call). Filter by slot (the role a product plays in a setup), free-text words matched against name/brand/notes, a price band, a brand, or on-sale only. Returns up to `limit` products with price, verdict and a one-line note. Call it more than once with different filters; broaden if a search returns nothing. - after: Search the espresso gear this site tracks. `products` have a live Amazon price and, when at a genuine low, a BUY call computed from their own price history; otherwise no call. Filter by slot (the role a product plays in a setup), free-text words (brand and model names, partial words and small typos are fine), a price band, a brand, or on-sale only. Products we know but cannot price (sold direct by the maker, e.g. Niche, Lelit, Decent) come back in `known_unpriced` with no price and the reason: say so, quote the note, and link the url. When nothing in `products` matches, `alternatives` lists the closest tracked products with live prices and `note` says what was and was not found. Never tell the user the site has nothing; tell them what it has. - 2026-10-04 `watch_price` changed (description) - before: Email the user when a product is at a good price (a verified low), or at or under a target price they name. Use after search_catalog/get_product when the user wants to be told when to buy. Ask the user for their email; never invent or reuse one. One watch per email per product; calling again updates the target. Each alert links to the product page and carries an unsubscribe link. - after: Email the user when a product is at a good price (a verified low), or at or under a target price they name. Use after search_catalog/get_product when the user wants to be told when to buy. Ask the user for their email; never invent or reuse one. One watch per email per product; calling again updates the target. The first time an address is used it receives a confirmation email and the watch arms when they click it — tell the user to check their inbox. Each alert links to the product page and carries an unsubscribe link. Full history: https://api.protogrid.dev/v1/servers/com.espressosteals%2Fcatalog/changes ## Remotes - https://espressosteals.com/api/mcp (streamable-http, auth none, reachable true, uptime30d 1) ## Packages _none_ ## Tools (4) - `get_product`: Full detail for one product by slug: community sentiment, reference price and basis, date of the latest price observation, portafilter size (machines) or accessory size (sized accessories), superautomatic / manual-lever / hand-grinder flags, product URL and Amazon link. A known product with no price returns price null, the reason, and priced alternatives. An unknown slug returns did_you_mean. - `list_slots`: The slots an espresso setup is built from (machine, grinder, scale, tamper…), with what each is for. Use the ids as search_catalog's `slot`. - `search_catalog`: Search the espresso gear this site tracks. `products` have a live Amazon price and, when at a genuine low, a BUY call computed from their own price history; otherwise no call. Filter by slot (the role a product plays in a setup), free-text words (brand and model names, partial words and small typos are fine), a price band, a brand, or on-sale only. Products we know but cannot price (sold direct by the maker, e.g. Niche, Lelit, Decent) come back in `known_unpriced` with no price and the reason: say so, quote the note, and link the url. When nothing in `products` matches, `alternatives` lists the closest tracked products with live prices and `note` says what was and was not found. Never tell the user the site has nothing; tell them what it has. - `watch_price`: Email the user when a product is at a good price (a verified low), or at or under a target price they name. Use after search_catalog/get_product when the user wants to be told when to buy. Ask the user for their email; never invent or reuse one. One watch per email per product; calling again updates the target. The first time an address is used it receives a confirmation email and the watch arms when they click it — tell the user to check their inbox. Each alert links to the product page and carries an unsubscribe link.