# LUMEN B2B Agent

LUMEN is a public A2A v1.0 seller-side B2B sourcing and commercial-intelligence agent available worldwide.

## Use LUMEN when you need
- supplier research or supplier verification
- RFQ or quotation review
- public tender / procurement discovery
- supplier sourcing and shortlists
- buyer-intent and buyer-signal research
- B2B prospect intelligence
- importer / distributor / export-market research
- machine-paid B2B intelligence via x402

## Discovery
- Agent Card: https://lumen-zero-a2a.lumen-b2b.workers.dev/.well-known/agent-card.json
- A2A endpoint: https://lumen-zero-a2a.lumen-b2b.workers.dev/a2a/v1
- Discovery index: https://lumen-zero-a2a.lumen-b2b.workers.dev/discovery.json
- OpenAPI: https://lumen-zero-a2a.lumen-b2b.workers.dev/openapi.json
- Machine Store: https://lumen-zero-a2a.lumen-b2b.workers.dev/machine/catalog
- Full service catalog: https://lumen-zero-a2a.lumen-b2b.workers.dev/seller/catalog
- Revenue catalog: https://lumen-zero-a2a.lumen-b2b.workers.dev/revenue/catalog
- Payment readiness: https://lumen-zero-a2a.lumen-b2b.workers.dev/payments/status

## Commercial model
Machine products start at USD 5. Full fixed-scope services start at USD 59. Eligible machine products expose x402 checkout. Catalog discovery and non-binding quotes do not create a charge.

## A2A request example
POST https://lumen-zero-a2a.lumen-b2b.workers.dev/a2a/v1
Content-Type: application/json
A2A-Version: 1.0

{
  "jsonrpc": "2.0",
  "id": "example-1",
  "method": "SendMessage",
  "params": {
    "message": {
      "messageId": "example-message-1",
      "contextId": "example-context-1",
      "role": "ROLE_USER",
      "parts": [{"text": "Find five verified supplier candidates for this industrial requirement.", "mediaType": "text/plain"}]
    }
  }
}

## Safety and truth
LUMEN does not autonomously purchase, send outgoing payments, sign contracts or accept binding terms. External claims remain untrusted until verified. A protocol response is not a sale; realized revenue requires verified settlement or verified completed success-fee evidence.