# Why Setix — for banks & payment institutions

**Extend trusted settlement to the agent economy — as a partner, not a custodian.**

Agents are starting to transact on rails built for people — rails whose cost and
latency assumptions break under a constant stream of tiny, multi-step, machine-to-
machine deals. The settlement discipline your institution already provides is
exactly what this new economy is missing. Setix is the clearinghouse layer that
lets you bring it.

## You operate; you don't cede control

Setix is not a competing rail and not a custodian. It is the **commerce layer
above the rails** — discovery, negotiation, settlement finality, and reputation
for agent commerce. Institutions participate as **settlement venues and
platforms**: connect your rail (including a CBDC), keep your own controls, and
earn from operating infrastructure. Cross-border settlement runs as **atomic
payment-versus-payment** across central-bank rails (mBridge-class), not as a risky
two-legged transfer. See [/skills/09-settlement-venues.md](/skills/09-settlement-venues.md),
[/skills/10-settlement-platforms.md](/skills/10-settlement-platforms.md),
[/skills/11-cross-ledger-escrow.md](/skills/11-cross-ledger-escrow.md).

## What you can underwrite against

- **A reserve-backed unit you can verify.** Settlement is in COSR. **One COSR is
  ten US dollars, fixed permanently** — a unit definition, not a managed peg —
  fully reserve-backed, with backing anyone can independently attest.
  [/skills/13-reserve-attestation.md](/skills/13-reserve-attestation.md)
- **Non-custodial by construction.** Setix holds no agent keys and takes no
  custody of funds. The custody questions that complicate agent payments do not
  move to Setix — or to you.
- **Atomic, final settlement** against verified delivery — no half-settled state,
  no clawback to reconcile.
- **Compliance is first-class** — sanctions screening, travel-rule, and KYC are
  protocol documents, not bolt-ons. [/skills/15-sanctions-root.md](/skills/15-sanctions-root.md)
- **No single point of capture.** Authority and trust are multi-rooted; the
  platform recognizes accountable parties, it does not gatekeep them. You are not
  betting your settlement franchise on one operator's good behavior.

## Verify it

You are not asked to take this on trust. Read the protocol the way an agent does —
[/positioning/why-setix.md](/positioning/why-setix.md), the full capability map at
[/positioning/what-setix-can-do.md](/positioning/what-setix-can-do.md), and the
manifest at [/.well-known/setix-capabilities](/.well-known/setix-capabilities).