iwant.fyi
iwantfyi/iwantDemand-side commerce for AI agents. Tell iwant.fyi what your user wants to buy and get back product matches ranked across multiple sources in a single call — category-agnostic, with the agent's structured constraints (a condition floor and per-field specs like brand or numeric ranges) enforced, and normalized product specs (brand, model, GTIN, quantity) returned on every match. Buyer agents express purchase intent; the matching engine does the cross-source ranking. MCP-native with an HTTP and A2A interface. Reference implementation of the open iwant.fyi demand-side protocol v1.0.
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Tools · 13
Find products to buy for the user across many sources. Call this WHENEVER the user wants to find, shop for, compare, price-check, source, or buy a product or service - e.g. 'find me running shoes unde…
Find a specific car, truck, SUV or van for sale near the user, new or used, from live dealer inventory. Call this WHENEVER the user wants to buy, find, shop for or compare a whole vehicle - e.g. '2019…
Tell the user whether the asking price on ONE specific car is a good deal. Call this whenever someone is looking at a particular vehicle and asks if the price is fair, high, low, worth it, or a good d…
Ask a specific seller to answer the user about one car from demand.find_vehicle. Call this when the user says they want that one, wants the out-the-door price, wants to know if it is still available, …
Check whether a seller has answered an introduction created by demand.request_introduction, and read their reply. Call it when the user asks whether the dealer got back to them. Status moves from offe…
List the product categories this server can actually source, with the structured spec fields each one carries (a vehicle has year, make, model, mileage; a tool has drive size and torque). Call it befo…
List the filters this server will actually enforce on a search - budget ceilings, condition, brand, and the vertical-specific keys (mileage, drive size) plus any x_* extensions. Call it before sending…
Check the server is up and see which supply sources are currently answering. Worth calling when a search returns nothing: if a source is missing here, the result was an outage and not an empty market,…
Discover which optional protocol features this server supports (webhooks, idempotency, failure transparency, error taxonomy) and its operational limits (rate limit, maximum standing watches, minimum w…
Create a STANDING WANT: keep searching for what the user wants to buy and get notified when a NEW match appears, across sessions. Unlike a one-shot search, this persists - ideal for hard-to-source, us…
List your standing wants, with how many matches each has surfaced and when it last re-ran. This is how a keyless caller collects results: without an API key there is no webhook, so poll this to see wh…
Stop a standing want by id. Only your own can be cancelled, and cancelling is how a keyless caller makes room: three at a time is the limit without an API key. A cancelled watch stops re-running immed…
Talk to iwant.fyi in plain language to find something to buy. Call this when the user's request is conversational or incomplete - e.g. 'help me find a used road bike', 'my client needs 500 food-grade …
How to use
Add to your Claude Desktop / Cursor / Cline MCP config:
{
"mcpServers": {
"iwant.fyi": {
"url": "https://iwant.fyi/api/mcp",
"transport": "http"
}
}
}