Lemmebuyit is not a product named in the candidate list, so the closest matches are agentic shopping and checkout tools that let an AI agent find products and complete purchases. Coal 1 offers programmable crypto checkout with a discovery action for buying, VaultGraph 2 exposes catalog, cart and checkout through an MCP gateway, and Ucpg 8 provides a shopping checkout handoff for UCP-capable agents.
A question back: Do you mean Lemmebuyit as a product you want to use, or are you looking for a tool that lets an AI agent buy things for you, and which store or platform should it buy from?
- 1
Coal - Programmable Commerceusecoal.xyzverified and signed
Creates crypto checkout sessions that settle in USDC on Base and includes a discover_merchants action for finding things to buy 1.
for agents: create_checkout · discover_merchants · get_checkout_status
- 2
VaultGraphvaultgraph.comwebsite read, tools not yet checked
Exposes a shop's catalog, cart, checkout and orders to AI agents such as ChatGPT and Claude through one MCP gateway 2.
- 3
Sources
- 1Coal - Programmable Commerceusecoal.xyz · read 2026-10-29
- 2VaultGraph - AI shopping for modern brandsvaultgraph.com · read 2026-10-29
- 8The Agent Times UCP Gatewayucpg.ai · read 2026-10-29
For agents: the 10 actions behind this answer
create_checkout · Coal - Payments for AI agents verified and signed
Create a Coal checkout session to pay for a product or amount. Settles in USDC on Base (~2s). Returns a checkout URL. Needs a Coal API key — set once via Claude config header `X-Coal-Api-Key:YOUR_KEY`, or pass per-call as `coalApiKey`. Get one at https://usecoal.xyz/console/keys.
· VaultGraph website read, tools not yet checked
Make your shop usable by any AI agent. One MCP gateway exposes catalog, cart, checkout, and orders to ChatGPT, Claude, and beyond.
· BuyRecord API website read, tools not yet checked
BuyRecord tells AI shopping agents how often a product is kept or returned, from verified purchases only. Agents read it before buying and report back after, with the receipt as proof. REST API and MCP server.
Purchase · Nexbid Commerce Agent verified and signed
Create a purchase intent for a product and return a Task. The task tracks progress via tasks/get; the purchase completes only after the human buyer authorizes it out-of-band through a magic link — that authorization step is not part of the A2A protocol.
PlaceOrder · Checkout API verified and signed
Place order
OrderAdd · Swagger API2Cart verified and signed
Add a new order to the cart.
Checkout · Apparel Monster Storefront Agent verified and signed
Set email, shipping/billing address, select shipping rate, add payment, complete the order. Accepts major card networks via Spree's integrated Stripe payment handler. Available over the Agent Commerce API v1 and MCP (see supportedInterfaces); A2A message/send will point you at them. e.g. Ship to 123
shopping_checkout_create · UCP Gateway found in code, not yet checked
Create a merchant checkout handoff URL after operator confirmation. Does not accept payment credentials. Buyer phone should be E.164 and country must be ISO-2.
· Agent Checkout website read, tools not yet checked
purchaseElicitation · gift-cards verified and signed
Interactive, stateful endpoint to guide small-footprint AI agents through a purchase flow for gift cards or mobile top-ups. Call repeatedly with the same session_token until 'status' is 'complete' or 'error'. For the first call, provide an empty 'body': {} (session_token will be generated and return
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.