Protocol Spec (High Level)

FAXP v1 is focused on one critical lane: AI freight booking through agent-to-agent messaging with strong message authentication, clear scope boundaries, and minimal coupling.

Scope Boundary

What FAXP Is: an open, vendor-neutral agent-to-agent freight booking protocol that standardizes discovery, bidding, optional verifier evidence transport, and booking confirmation using signed, validated, replay-protected messages.

What FAXP Is Not: a TMS, a load board, dispatch software, telematics/tracking infrastructure, document custody workflow (BOL/POD), payment/settlement rails, or a centralized operations host for verifier services.

FAXP does not determine regulatory eligibility; it authenticates protocol messages and can transport optional verifier evidence.

Core Flow

1. Agent capability alignment and booking intent exchange.
2. Opportunity and bid exchange.
3. Optional verifier evidence exchange or reference.
4. Booking confirmation and auditable receipt.

Discover -> Bid -> Verify -> Confirm

Envelope Structure (Illustrative)

{
  "Protocol": "FAXP",
  "ProtocolVersion": "0.3.0",
  "MessageType": "BidRequest",
  "From": "Carrier Agent",
  "To": "Broker Agent",
  "Timestamp": "2026-02-27T14:32:00Z",
  "MessageID": "598e68ad-f01e-4260-b39a-21220c8edb9b",
  "Nonce": "6cbec7dbd0e644ce8148236a38009758",
  "Body": {
    "LoadID": "f4b94843-bead-4e93-8196-79a4059c9675",
    "Rate": {
      "RateModel": "PerMile",
      "Amount": 2.62,
      "Currency": "USD",
      "AgreedMiles": 781,
      "MilesSource": "BrokerDeclared"
    },
    "AvailabilityDate": "2026-02-28"
  },
  "SignatureAlgorithm": "ED25519",
  "SignatureKeyID": "carrier-20260220193123",
  "Signature": "base64..."
}

Capability Discovery and Interop

FAXP is compatible with Agent Card or capability-profile style discovery so integrators can determine whether a counterparty supports the booking behavior, roles, and optional profiles they need before attempting a transaction.

{
  "agent_id": "carrier.agent.example",
  "protocols": ["FAXP"],
  "capabilities": {
    "roles": ["Carrier"],
    "booking": true,
    "truckPosting": true,
    "loadPosting": false,
    "profiles": {
      "verificationPolicy": ["US_FMCSA_BALANCED_V1"],
      "rateModels": ["PerMile", "Flat", "PerPallet", "CWT", "PerHour", "LaneMinimum"]
    }
  }
}

Technical Detail

This site intentionally stays lightweight.

Detailed schemas, conformance artifacts, governance documents, and implementation references are maintained in the public FAXP repository.

For demos, implementation conversations, or sponsorship inquiries, use Contact Us.