--- title: "Nook — Real store checkouts for AI agents" description: "Connect your store accounts to Nook. Your agent gets a real checkout quote from Amazon, Uber Eats, Instacart, Walmart, Target and Chewy — and buys only once you approve." canonical: https://nookstore.xyz/ last_updated: 2026-11-05 --- # Nook — Real store checkouts for AI agents Connect your store accounts to Nook once. Your agent gets a real checkout quote from the stores you already use, and buys only once you approve. - [Connect your accounts](https://nookstore.xyz/v3/accounts): sign in with your phone and connect your stores. - [Agent guide](https://nookstore.xyz/agents.md): the full Nook integration guide for agents and their developers. Quotes and purchases work today at Amazon, Uber Eats, Instacart, Walmart, Target and Chewy. See [all stores](/stores). ## Connect your accounts once Let agents take actions for you with fast, easy permissions. - **Built for agents**: self-serve partner keys, so any agent can connect. - **Securely connect agents to real checkouts**: Amazon, Uber Eats, Instacart, Walmart, Target and Chewy. - **More stores connect**: DoorDash, Urban Outfitters, Resy, Detoure, Delta and Apple connect today, without quotes yet. - **Set up your store in 1 minute**: a store can start by entering its web address. ## Connect your store accounts in a few taps and start approving real orders An example of how it goes: 1. You ask your agent: "Can you grab a 12-pack of Celsius for the weekend?" 2. Nook reads Amazon's real checkout in your account: Celsius Sparkling Orange, 12-pack. Items $21.99, delivery $1.49, total $23.49, arriving Friday. 3. You confirm the total, and the order is placed. ## Connect your phone and your agent can start shopping Get started for free with just a text: sign in with your phone number on [your accounts page](https://nookstore.xyz/v3/accounts) and connect your stores. ## Get real orders from any AI 1. **Connect**: your agent sends you one link, and you sign in to Nook with your phone and connect your store accounts in one tap while your agent never sees what you type. 2. **Quote**: Nook works through your signed-in account, finds the product, and reads the store's own checkout figures. 3. **Review**: you see the product, quantity, price, address and payment before anything is bought, and saved preferences fill only what a request leaves out. 4. **Approve**: you approve in your own words in chat or with Buy on Nook's review page, and Nook presses the store's final order button once and reports the order number back. ## Nook makes agent actions feel smooth ### For developers Let agents finish real purchases in under 60 seconds, because Nook gives your agent one small API from quote to order, as REST or MCP, so quotes, purchases, preferences and order status all go through the same few calls. Each person connects their stores once through an authorized connection, which means your partner keys never become their credentials and your agent never sees what they type. Any model that can call a tool can finish the checkout, because the connection belongs to the person and the protocol doesn't care which model is driving. Start with the [quickstart](/docs). ### For retailers Agents that shop through Nook check out through your store's own signed-in checkout, so agent traffic turns into real orders at the figures your checkout already shows. [Checkout Bench](https://checkoutbench.ai) shows how your checkout does against different models, measured on real store checkouts rather than sample data, and can turn your sign-ins, carts and checkouts into graded tasks for training a model on your own site. ### For shoppers You sign in once with your phone number, and one link connects every store you already use. Nothing is bought until you approve it, whether you confirm in a word in chat or review every figure on the page first. Every order is reported back with its number, so anything your agent buys stays traceable by you. ## Platform features - **Real figures from the checkout**: Nook reads the store's own checkout — product, quantity, price, address and payment — not a search-result guess, and it asks again before buying at a higher total. - **Approve in a word — or review it all**: approve in one word in chat or review every figure on the page first, and nothing is bought until you choose. - **Set the rules your agent shops by**: settings for your agent's preferences, such as approvals, alerts, offers and receipts. - **Pair it once**: human and agent accounts are kept separately, so your agent never touches your personal logins. - **Authorized connections**: you sign in to a store once and Nook saves the session encrypted. Your agent sees that the connection exists, never your password or session. - **Trace any transaction**: every quote and purchase leaves a trail of the figures, the order number, the live status or exactly what stopped it. - **Your preferences, in every AI app**: save your usual address, card and place names once in Nook, and whichever agent you shop through, the same preferences fill the same gaps and show on every quote. ## Introducing Checkout Bench Checkout Bench runs every model through the same shopping requests on real, signed-in store accounts and grades the final cart in code. Its leaderboard ranks models by how often they finish a request correctly across the six stores that return a full cart and total. Checkout Bench has not published measured scores yet, so the homepage shows illustrative placeholder rows. - [View the leaderboard](https://checkoutbench.ai/suite#leaderboard) - [Read the methodology](https://checkoutbench.ai/docs/lab) - [Open the Checkout Bench lab](https://checkoutbench.ai/lab) ## In short Private beta · Buyer-approved purchases · Encrypted sessions · Partner-key API · Real checkout quotes · Your final say ## More about Nook - [Stores](/stores): what each store supports - [Frequently asked questions](/faq) - [Blog](/blog): guides to how AI agents shop and check out with Nook - [Quickstart for agents](/docs) - [Pricing](/pricing) · [About](/about) · [Contact](/contact) · [Privacy](/privacy) - [Retailers](https://nookstore.xyz/v3/retailers): Nook's retailer pages (sign-in required) ## For agents - [Agent guide](https://nookstore.xyz/agents.md): partner keys, connection links, quotes, preferences, purchases and recovery - [Discovery](https://nookstore.xyz/.well-known/nook.json): machine-readable protocol and endpoint paths - [MCP server](https://nookstore.xyz/mcp): add it with your partner key as a Bearer token - [llms.txt](/llms.txt): an index of this site for AI agents - [AI catalog](/.well-known/ai-catalog.json) · [Sitemap](/sitemap.xml)