Atlas

Protocols

Five live rails.
One governed catalog.

Open a public endpoint, read the payload agents receive, and see which plan unlocks each surface. Catalog ownership stays on Product. This page is the wire.

Open the lab → How Atlas governs catalogs

Live lab

Pick a rail. Inspect the payload.

Public demo surfaces. Your catalogs appear on the rails your plan unlocks.

MCP

Model Context Protocol

Tool surface for agents to discover offers, validate parameters, and request quotes.

Primary surface
GET /mcp
Plan gate
Included on Sandbox with watermark. Pro removes the watermark.
Agent contract
Governed tools only. No invented totals outside published mandate.
Watch for
Sandbox responses are marked non-production.
UCP

Universal Commerce Protocol

Business profile, product feed, and commerce endpoints for ecosystem agents.

Primary surface
GET /.well-known/ucp
Product feed
GET /protocols/ucp/products (part of UCP, not a separate rail)
Plan gate
Pro and Enterprise. Sandbox does not expose this rail.
Agent contract
Discover seller identity and catalog feed. Quotes stay indicative.
A2A

Agent2Agent card

Machine-readable capability descriptor with commercial boundaries.

Primary surface
GET /a2a
Plan gate
Pro and Enterprise production presence.
Agent contract
Capability discovery and non-binding commercial edges.
Use when
Peer agents need a card before deeper catalog reads.
UAP

India UAP & Beckn

Compatibility with Unified Agent Protocol and open-network commerce grids.

Primary surface
GET /protocols/uap
Plan gate
Pro and Enterprise.
Agent contract
Network-style discovery mapped from your governed catalog.
Use when
Agents participate in open-network commerce grids.
ACP

Agentic Commerce Protocol

Procurement parameters and policy fences for autonomous negotiation.

Primary surface
GET /protocols/acp
Plan gate
Pro and Enterprise.
Agent contract
Policy-bounded negotiation inputs. Exceptions escalate to deal desk.
Use when
Buying agents need procurement-shaped parameters.

Need raw HTTP schemas? That is API documentation, not a sixth commerce rail: OpenAPI reference. The UCP product feed is listed under UCP above.

Plan gates

Same catalog. Different rail access.

Sandbox One rehearsal rail · watermarked

Validate discovery and quote tools without putting production trust on the wire.

Pro All five rails · live

Full production presence without sandbox watermark. You approve which machines can act; rotate or revoke access anytime.

Enterprise Dedicated capacity · controls

Custom rate limits, private networking, and contracted SLA on the same protocol set.

Tier depth lives on Product. Dollars and limits live on Pricing.

Agent contract

What every rail promises

  • Published catalog truth only. No scraped marketing pages.
  • Seller-approved machine access for action. Discovery can stay public; acting requires your say.
  • Indicative quotes by default. Binding stays outside PairRail.
  • Fail closed on exceptions. Humans own the deal desk.
  • One catalog projection. You do not maintain five price books.

Next steps

Inspect a rail, then publish a catalog

Use the lab above, then score a sheet or compare plans when you are ready to go live.

Score readiness → Onboard a catalog View pricing