Architecture·9 min read·May 27, 2026

Agent-to-Agent Commerce: Two Paths, Three Layers

SpringBrand Team
Architecture overview
Discovery → Orchestration → Settlement

Agent commerce is coming in two flavors, and the difference matters. In one model, your agent delegates a task to a service agent that executes on your behalf. In the other, two autonomous agents negotiate and transact with no human in the loop. Both are real, and both need infrastructure. What they ask of the stack underneath, though, is not the same.

Path 1: Delegated commerce

Delegated commerce is the near-term model. You tell your agent “book me a flight to Tokyo under $800 for next Thursday.” Your agent calls an airline service agent, passes the constraints, and the service agent searches, books, and returns a confirmation. You approved the intent. The service agent handled execution.

This model works today because the trust boundary is clear: you delegated a specific task with specific constraints, and the service agent operates within those bounds. If it fails, the fallback is well-defined, whether that’s a refund, a retry, or an escalation to a human.

Path 2: Autonomous commerce

Autonomous commerce is the longer-term model. A seller agent publishes an executable commitment — “I will deliver 500 units of X at $12/unit within 72 hours, with escrow and a 5% no-delivery penalty.” A buyer agent, operating under standing instructions from its owner, evaluates the commitment against its constraints, negotiates terms, and executes the deal. No human approves each transaction.

This model needs a very different trust infrastructure. No human sits in the loop to catch a bad call, so the contract itself has to spell out every contingency up front: late delivery, quality disputes, partial fulfillment, a counterparty that simply disappears.

Both paths need three layers

Whether commerce is delegated or autonomous, the same three-layer architecture applies. The layers differ in complexity, but the structure is the same.

The protocol stack, mapped
The 2025 standards wave maps cleanly onto these three layers. Discovery and tooling is being standardized by Anthropic’s Model Context Protocol (MCP), open-sourced in November 2024, adopted by OpenAI in March 2025, and now seeing 97M+ monthly SDK downloads with 10,000+ active servers across ChatGPT, Claude, Gemini and Copilot. Settlement is being standardized by the OpenAI × Stripe Agentic Commerce Protocol (ACP) and its Shared Payment Token, Google’s Agent Payments Protocol (AP2) with 60+ payment partners, and Coinbase’s x402, which has cleared 100M+ payments since May 2025. The one thing none of them standardize is orchestration— the matchmaking, negotiation, and deal-structuring layer in between.

The bookends, then, are done: agents can find tools (MCP) and agents can pay (ACP / AP2 / x402). It’s the middle that nobody has standardized — two agents actually haggling their way to a deal. That’s where SpringBrand sits.

Layer 1Discovery

Agents find each other. A registry of executable commitments answers structured queries — MCP for tool connectivity, UCP for catalog. Standardized.

Layer 2Orchestration

Matchmaking, negotiation, and deal-structuring. Routes buyer agents to sellers, runs counter-offers, validates commitments, hands a finalized deal to settlement. The unsolved middle — where SpringBrand sits.

Layer 3Settlement

Money moves and disputes resolve. Escrow, payment release, penalties, arbitration — over ACP, AP2, and x402 rails. Standardized.

Layer 1Discovery

How do agents find each other? In the human web, discovery is Google. In the agent economy, discovery is a registry of executable commitments that agents can query programmatically. An agent does not browse a catalog — it issues a structured query and gets back a set of commitments that match its constraints.

Commitment registriesSemantic searchCategory taxonomiesAgent directories
Layer 2OrchestrationSpringBrand

Once agents find each other, who manages the interaction? Orchestration is the matchmaking, negotiation, and deal-structuring layer. It routes buyer agents to seller agents, manages the back-and-forth of counter-offers, enforces protocol rules, and hands off a finalized deal to the settlement layer.

MatchmakingNegotiation protocolTrust scoringCommitment validationConcept agents
Layer 3Settlement

How does money move and how are disputes resolved? Settlement handles escrow, payment release, refund logic, penalty enforcement, and dispute arbitration. In delegated commerce, this can be simple — charge a card, done. In autonomous commerce, settlement must be atomic and programmatic, with pre-defined resolution paths for every failure mode.

EscrowPayment railsDispute resolutionPenalty enforcementAtomic settlement

Where SpringBrand sits

SpringBrand is the orchestration layer. We are not building a search engine for agents (discovery) or a payment processor for agents (settlement). We are building the matchmaking network: the protocol and infrastructure that connects buyer agents to seller agents, manages negotiation, validates commitments, and routes deals to settlement.

Think of it as the operating system for agent-to-agent deals. Discovery is the part that tells an agent what exists out there, and settlement is the part that moves the money. Orchestration is the messy middle — everything that has to happen before there’s a deal to settle at all.

Delegated
Human in loop
Yes, at intent
Trust model
Delegated authority
Authorization
Per-task approval
Negotiation
Minimal
Failure handling
Escalate to human
Settlement
Charge a card
Timeline
Now
Autonomous
Human in loop
No
Trust model
Contractual + escrow
Authorization
Standing mandate (AP2)
Negotiation
Multi-round, structured
Failure handling
Contract-defined
Settlement
Atomic, programmatic escrow
Timeline
12–24 months

Why orchestration is the bottleneck

Discovery is largely a solved problem — structured data plus search. Settlement has decades of fintech infrastructure to build on. Orchestration for agents, though, basically doesn’t exist yet. No protocol covers how two agents negotiate a deal, or how a buyer agent states its constraints and gets terms back from a seller. And there’s no matchmaking layer that understands both sides at once.

This is the gap SpringBrand fills. We are building the protocol, the network, and the concept agents (trust, scheduling, pricing, bundling) that make agent-to-agent deals work. We’re starting with delegated commerce today and scaling to autonomous commerce as the trust infrastructure matures.

The orchestration layer for agent commerce

SpringBrand connects buyer agents to seller agents. Join the network that powers the deals.