> ## Documentation Index
> Fetch the complete documentation index at: https://tetrafi.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Introduction

> propAMM (RFS) - request-for-stream execution, coming soon.

<Note>
  **Not live yet.** propAMM (RFS) is on the roadmap; expect the full integration surface to appear on this page as launch nears.
</Note>

TetraFi propAMM is a **request-for-stream (RFS)** execution venue - the streaming counterpart to the request-for-quote model. In an RFQ, a market maker commits to a firm price and must hold and hedge that commitment until it expires; that risk is priced into the spread. In an RFS, makers continuously stream their latest price on-chain, and you execute against the freshest one - no quote to hold, no validity window to defend.

Why that matters:

* **Tighter pricing** - makers aren't held to a stale number, so they don't charge for the risk of being picked off while a quote ages
* **Freshest execution** - trades settle at the most recently streamed price, not one frozen seconds earlier
* **Healthier liquidity** - LPs stop being arbitraged on stale quotes, so they can quote larger sizes at the right price, consistently
* **Complementary to RFQ** - firm escrow-backed quotes stay the right tool when you need a locked-in price; RFS shines for flow that wants the best current price at size

<CardGroup cols={2}>
  <Card title="Trade today" icon="bolt" href="/rfq-api/introduction">
    Firm escrow-backed liquidity is live now through the RFQ API.
  </Card>

  <Card title="Register interest" icon="sparkles" href="/support">
    Reach out through the support page and we'll let you know when the program opens.
  </Card>
</CardGroup>