# Services from stableproduct.dev on Zero > stableproduct.dev serves 28 paid API services for AI agents, indexed by Zero. Each is callable per call with payment handled by Zero. Canonical page: https://www.zero.xyz/host/stableproduct.dev Live health (JSON, refreshed every minute): https://www.zero.xyz/host/stableproduct.dev/health.json ## Services - [StableProduct Shopify Global Catalog Search](https://www.zero.xyz/c/stableproduct-shopify-global-catalog-search-33d6d2a1/llms.txt): $0.01/call via x402. Search across all eligible Shopify stores using natural-language text, product-ID similarity, image similarity, filters, and cursor-based pagination. - [StableProducts Channel3 Image Search](https://www.zero.xyz/c/stableproducts-channel3-image-search-367e26dc/llms.txt): $0.01/call via x402. Search a product catalog by image URL or base64 image to find visually similar products with pricing, availability, and merchant links - [stableproduct.dev Wirecutter Review Lookup](https://www.zero.xyz/c/stableproduct-dev-b1928551/llms.txt): $0.01/call via x402. Fetch a single persisted Wirecutter product review by ID, URL, or slug, including extracted product recommendations and offers. - [Wirecutter Recommendation Search](https://www.zero.xyz/c/stableproduct-dev-7d09525e/llms.txt): $0.01/call via x402. Searches the persisted Wirecutter product recommendation database by product type, pick name, review title, category, and model tokens using lexical matching. - [Channel3 Product Price History](https://www.zero.xyz/c/stableproduct-dev-487fadd4/llms.txt): $0.01/call via x402. Retrieves historical price data for a canonical Channel3 product over a specified number of days. - [StableProducts Wirecutter Review Extractor](https://www.zero.xyz/c/stableproducts-wirecutter-review-extractor-87104acf/llms.txt): $0.01/call via x402. Extracts structured product recommendation data from a Wirecutter review page URL - [StableProducts Channel3 Product Search](https://www.zero.xyz/c/stableproducts-channel3-product-search-1008ab8b/llms.txt): $0.01/call via x402. Search a multi-country product catalog with semantic or keyword queries, filtering by price, brand, condition, availability, and more. - [Channel3 Category Search](https://www.zero.xyz/c/stableproduct-dev-6d0a180a/llms.txt): $0.01/call via x402. Searches Channel3 product categories by free-text query, returning matching category results from the Wirecutter recommendation database. - [StableProducts Channel3 Similar Products](https://www.zero.xyz/c/stableproducts-channel3-similar-products-58ab6c0b/llms.txt): $0.01/call via x402. Finds products similar to a given product ID from the Channel3 catalog, with filtering and localization options. - [StableProducts Channel3 Product Search](https://www.zero.xyz/c/stableproducts-channel3-product-search-6ba067db/llms.txt): $0.01/call via x402. Searches a product catalog with semantic or keyword search, supporting filters for price, category, brand, availability, gender, age group, condition, and locale. - [Channel3 Website/Domain Commission Rate Lookup](https://www.zero.xyz/c/stableproduct-dev-1017d8be/llms.txt): $0.01/call via x402. Resolves a Channel3 website or domain and returns its affiliate commission rate. - [Channel3 Product Detail (v1)](https://www.zero.xyz/c/stableproduct-dev-8873e19d/llms.txt): $0.01/call via x402. Fetches detailed product information from the Channel3 product catalog by product ID, with optional country, currency, language, and website filtering. - [StableProducts Wirecutter Crawl](https://www.zero.xyz/c/stableproducts-wirecutter-crawl-966b969d/llms.txt): $0.01/call via x402. Crawls Wirecutter review pages to extract product recommendations and review data, returning structured results with optional scoop content. - [Channel3 Categories List](https://www.zero.xyz/c/stableproduct-dev-ee51d436/llms.txt): $0.01/call via x402. Returns a paginated list of all Channel3 product categories, optionally filtered to root-level categories only. - [Channel3 Brand Detail by ID](https://www.zero.xyz/c/stableproduct-dev-f5a1be8a/llms.txt): $0.01/call via x402. Fetches detailed information about a specific Channel3 brand using its brand_id. - [Channel3 Brand Search](https://www.zero.xyz/c/stableproduct-dev-6ba6ce56/llms.txt): $0.01/call via x402. Search Channel3 brands by free-text query with optional result limit - [Channel3 Price Tracking Subscriptions List](https://www.zero.xyz/c/stableproduct-dev-c0cf825b/llms.txt): $0.01/call via x402. Lists all active Channel3 price tracking subscriptions with optional pagination and raw data inclusion. - [StableProducts Channel3 URL Lookup](https://www.zero.xyz/c/stableproducts-channel3-url-lookup-4a416e4c/llms.txt): $0.01/call via x402. Look up a Channel3 product by URL, returning catalog data with optional raw content and staleness control. - [Channel3 Brands List (Paginated)](https://www.zero.xyz/c/stableproduct-dev-3d180b6b/llms.txt): $0.01/call via x402. Lists all Channel3 brands with cursor-based pagination, supporting incremental traversal of the full brand catalog. - [Channel3 Legacy Brand Detail (v0)](https://www.zero.xyz/c/stableproduct-dev-37d7dfe3/llms.txt): $0.01/call via x402. Retrieves detailed information about a specific Channel3 brand using its brand_id via the legacy v0 API. - [Channel3 Legacy Product Detail (v0)](https://www.zero.xyz/c/stableproduct-dev-eb176e83/llms.txt): $0.01/call via x402. Fetches legacy Channel3 v0 product detail by product_id, optionally filtered by website IDs. - [Channel3 Category Detail by Slug](https://www.zero.xyz/c/stableproduct-dev-02c74f90/llms.txt): $0.01/call via x402. Retrieves detailed information about a specific Channel3 product category identified by its slug. - [Channel3 Legacy Brand Lookup by Name](https://www.zero.xyz/c/stableproduct-dev-94404755/llms.txt): $0.01/call via x402. Looks up a Channel3 brand by name using the legacy v0 API endpoint. - [StableProducts Channel3 Price Tracking Start](https://www.zero.xyz/c/stableproducts-channel3-price-tracking-start-89b46637/llms.txt): $0.01/call via x402. Start a price tracking subscription for a specific Channel3 product by canonical product ID - [StableProducts Channel3 Price Tracking Stop](https://www.zero.xyz/c/stableproducts-channel3-price-tracking-stop-14e0e72d/llms.txt): $0.01/call via x402. Stops active price tracking for a specific product in the Channel3 catalog - [stableproduct.dev Channel3 Legacy Brand List (v0)](https://www.zero.xyz/c/stableproduct-dev-ea4a34a4/llms.txt): $0.01/call via x402. Returns a paginated list of Channel3 brands using cursor-based pagination, via the legacy v0 API. - [StableProducts Wirecutter Reviews API](https://www.zero.xyz/c/stableproducts-wirecutter-reviews-api-d7543c22/llms.txt): $0.01/call via x402. Fetches Wirecutter-style product reviews and recommendations from the StableProducts catalog - [Channel3 Health Check](https://www.zero.xyz/c/stableproduct-dev-3c33d74d/llms.txt): $0.01/call via x402. Performs a health check passthrough on the Channel3 API service to verify its availability and operational status. Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently. - [Zero catalog index](https://www.zero.xyz/llms.txt)