# PartsNow > PartsNow (partsnow.ai) is an agentic commerce platform for heavy-duty truck and trailer parts. Our AI agents help buyers find, compare, and purchase parts through natural conversation — by text, voice, or photo. 50,000+ parts from trusted dealers. Ships nationwide across the United States from Knoxville, TN. Bilingual support in English and Spanish. ## Key Features - AI-powered part search with natural language queries (English and Spanish) - VIN lookup for vehicle-specific compatible parts - Per-product compatibility checks against any US truck VIN or make/model/year - OEM part number search across product SKUs, titles, and tags - Direct in-chat checkout — agents can create a cart and return a hosted checkout URL - Live shipping rate quotes (EasyPost) to any US destination - Visual part identification via image upload (web UI only, not yet exposed via MCP) - Live chat support powered by AI ## Product Categories - [All Products](https://partsnow.ai/products): Full catalog of 50,000+ truck and trailer parts - Truck Parts: Engine components, sensors, filters, pulleys, belts - Filters: Air, oil, fuel, and hydraulic filters (330+ options) - Driveline: Transmission, differential, and drivetrain components (250+) - Brakes: Brake drums, shoes, air valves, and complete kits (70+) - Hydraulics: Cylinders, valves, fittings, and hoses - Fasteners: Bolts, screws, washers, and hardware - Fluids & Lubricants: Oils, antifreeze, grease, and coolants - Trailer Parts: Rail systems, fenders, gauges, lighting ## Featured Brands - Post Onsite - Dixon Valve & Coupling Co. - LittleJohn Inc. - Knappco Corp. - Aurora Parts & Accessories - Scully - Betts Industries ## Truck Encyclopedia PartsNow maintains a browsable encyclopedia of the commercial trucks (Class 3-8) that run America's roads — 25 makes and 209 models, each with a dedicated page covering specs, engine options, body type, production years, and the common replacement parts that fit. Make hubs use the pattern `https://partsnow.ai/trucks/{make}` and model pages `https://partsnow.ai/trucks/{make}/{model}`. - [All Trucks](https://partsnow.ai/trucks): Browse every make and model; filter by make, class, or body type - [Freightliner](https://partsnow.ai/trucks/freightliner) - [Peterbilt](https://partsnow.ai/trucks/peterbilt) - [Kenworth](https://partsnow.ai/trucks/kenworth) - [Volvo Trucks](https://partsnow.ai/trucks/volvo-trucks) - [Mack Trucks](https://partsnow.ai/trucks/mack-trucks) - [International](https://partsnow.ai/trucks/international) - [Western Star](https://partsnow.ai/trucks/western-star) - [Autocar](https://partsnow.ai/trucks/autocar) - [Hino](https://partsnow.ai/trucks/hino) - [Isuzu](https://partsnow.ai/trucks/isuzu) - [Ford](https://partsnow.ai/trucks/ford) - [Chevrolet](https://partsnow.ai/trucks/chevrolet) - [Ram](https://partsnow.ai/trucks/ram) - [GMC](https://partsnow.ai/trucks/gmc) - [Mitsubishi Fuso](https://partsnow.ai/trucks/mitsubishi-fuso) - [RIZON](https://partsnow.ai/trucks/rizon) - [Sterling](https://partsnow.ai/trucks/sterling) - [Caterpillar](https://partsnow.ai/trucks/caterpillar) - [Battle Motors](https://partsnow.ai/trucks/battle-motors) - [Kalmar Ottawa](https://partsnow.ai/trucks/kalmar-ottawa) - [Capacity](https://partsnow.ai/trucks/capacity) - [Tesla](https://partsnow.ai/trucks/tesla) - [Nikola](https://partsnow.ai/trucks/nikola) - [Lion Electric](https://partsnow.ai/trucks/lion-electric) - [BYD](https://partsnow.ai/trucks/byd) ## AI Tools - [AI Part Search](https://partsnow.ai/search): Natural language search to find parts by description, symptom, or application - [Visual Part Finder](https://partsnow.ai/find-part): Upload a photo of a part to identify and find replacements - [VIN Lookup](https://partsnow.ai/vin-lookup): Enter a VIN to find compatible parts for a specific vehicle ## MCP Server PartsNow exposes a Model Context Protocol (MCP) server so AI assistants can search, recommend, check fitment, and complete purchases on behalf of users. - Endpoint: `https://partsnow.ai/api/mcp` (HTTP POST, JSON-RPC streamable) - Protocol: Model Context Protocol, server name `partsnow`, version `1.1.0` Available tools: - `search_products` — Keyword search over the catalog with optional category/vendor filters - `ai_search` — Natural-language search (English or Spanish), best for vague or symptom-based queries - `get_product` — Full product detail by handle, including variants, price, and availability - `get_categories` — List all product categories - `get_vendors` — List all brands and dealers - `find_related_products` — Complementary and similar products for a given handle - `decode_vin` — Decode a 17-character VIN and return vehicle details plus suggested compatible parts - `check_compatibility` — Heuristic compatibility check between a specific product and a VIN or make/model/year - `find_oem_equivalent` — Look up PartsNow products by OEM (manufacturer) part number - `add_to_cart` — Create a Shopify cart with one or more line items and return the hosted checkout URL - `get_checkout_url` — Re-query an existing cart by ID to retrieve its current state and checkout URL - `get_shipping_estimate` — Live carrier rates (EasyPost) for shipping a set of products to a US address ## Company Info - [About Us](https://partsnow.ai/about): Our mission and platform overview - [Contact](https://partsnow.ai/contact): Customer support via live chat, email, or phone ## Policies - [Shipping Policy](https://partsnow.ai/shipping): Nationwide US shipping, standard 3-5 business days - [Returns Policy](https://partsnow.ai/returns): 30-day return window - [Terms of Service](https://partsnow.ai/terms): Platform terms and conditions - [Privacy Policy](https://partsnow.ai/privacy): Data handling and privacy practices