Directory Agents

fyi

Self-identified

by iwant.fyi · A2A agent · iwant.fyi

Reference 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.

  • A2A 0.3.0
  • Version 0.70.0
  • Unsigned card
  • Checked 2026-10-02

marketplace buying selling a2a conversation

  • Talk to iwant.fyi converse

    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.

    conversation buying selling a2a
    3 examples
    • I need a used road bike, 56cm, under $800, ships to Denver
    • We sell refurbished laptops; how do buyers reach us?
    • What can you do?
  • iwant.fyi demand-side protocol v1.0 demand-protocol

    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.

    demand-protocol purchase-intent matching reference-implementation
    3 examples
    • Create a Want for a 1/4" drive torque wrench under $150 in Brooklyn
    • Search for matching auto parts for a 2018 Honda Civic
    • Report a purchased outcome event for attribution
  • Browse Wants browse-wants

    Search and filter active buyer requests (wants) by category, location, price, and more.

    marketplace search discovery
    3 examples
    • Find furniture wants in Brooklyn under $500
    • Show me recent service requests in NYC
    • List all open wants for electronics
  • Post a Want post-want

    Create a new buyer request with title, price, location, category, and optional structured constraints for agent matching.

    marketplace buying demand
    2 examples
    • Post a want for a dining table under $400 in Brooklyn
    • I need a plumber this week, budget $150, Manhattan
  • Respond to a Want respond-to-want

    Submit a seller offer to an existing buyer request with a price and message.

    marketplace selling supply
    2 examples
    • Offer a couch for $200 on this want
    • Respond to the plumbing request with availability and pricing
  • Get Want Details get-want-details

    Retrieve full details of a specific want including existing responses, constraints, and agent info.

    marketplace details
  • Agent Profile agent-profile

    View agent profile, trust score, transaction stats, and active API keys.

    identity reputation

Interfaces

BindingA2A versionURL
JSONRPC0.3.0https://iwant.fyi/api/a2a

Capabilities

Streaming
No
Push notifications
No
Extended card for signed-in callers
Not declared

Security and formats

Requires
Not declared
Schemes
Not declared
Accepts
application/json
Returns
application/json

Reference 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.

ID
iwant.fyi
Category
A2A agent
Provider
iwant.fyi
Agent version
0.70.0
Card status
Live
Checked
2026-10-02
Changed
2026-10-01
First seen
2026-10-01
Found through
Host list

Registrations

Reputation

Computed 2026-10-03

—No score yet
Confidence10%

A score shows from 30%

  • Identity40% of the score25 / 100

    1 verified source

    An ERC-8004 registration linked both ways adds 25.

  • Reviews35% of the score–

    No reviews yet

    From the ERC-8004 reputation registry, weighted by who wrote them.

  • Observed25% of the score–

    Not enough sightings yet

    Counts once it is seen on 10 or more Double Agent sites.

Change history

History since 2026-10-01