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OpenFiat

A marketplace that no country or company can switch off.

OpenFiat is an open protocol for exchanging stablecoins for local currency, peer to peer. Escrow settles on Solana; discovery, reputation and communication run on a network anyone can join. No government can censor it and no company can suspend you — there is no operator to pressure, only participants.

Join the community presaleSee how a trade works

Your OPEN rewards

Connect the wallet you contributed with.

Connect your wallet to check what you've earned in the presale.

2

layers

7

staked roles

28

specifications

10

repositories

0

central operators

Every P2P exchange today has the same architecture.

The cryptocurrency is decentralized. The marketplace is not. Behind almost every peer-to-peer exchange:

  • A single company owns the servers
  • A single company controls the database
  • A single company decides which advertisements appear
  • A single company resolves disputes
  • A single company stores reputation scores
  • A single company may suspend or remove users
  • A single company decides which countries are supported
  • A single company can be shut down, hacked, or pressured

If the operator fails — technically, financially, legally — the marketplace disappears, even though the blockchain underneath never stopped. OpenFiat eliminates the dependency.

Two layers, each doing what it does best.

The architecture minimizes on-chain cost while preserving decentralized ownership and transparency.

Coordination layer · OpenFiat network

Fast communication between people

Runs on an open peer-to-peer network anyone can join — no company in the middle, no server to seize.

  • Advertisement discovery
  • Trade coordination
  • Reputation
  • Encrypted communication
  • Notifications & search
  • Marketplace indexing

Settlement layer · Solana

What blockchains do exceptionally well

Assets are locked and released by audited smart contracts — never by an operator's goodwill.

  • Secure asset custody
  • Escrow management
  • Staking
  • Treasury management
  • Governance execution

One trade, four moves

Protected from the second move onward — nobody in the middle can take the funds, and nobody has to trust the other side's goodwill.

  1. 01 · NETWORK

    You pick an offer

    Offers show the rate, the payment methods accepted, the limits, and how the other side has performed on past trades. Nothing is committed yet.

  2. 02 · ON-CHAIN

    Their crypto goes into escrow

    Before any money moves, the seller's stablecoins are locked in an on-chain escrow. The seller cannot take them back and the buyer cannot take them early. This is the step that makes the rest safe.

  3. 03 · FIAT RAIL

    You pay the way you normally pay

    Bank transfer, mobile money, an instant payment network, or cash. The payment happens on your usual rails, not on a blockchain, and you mark it as sent when it is done.

  4. 04 · ON-CHAIN

    Escrow releases

    The seller confirms the money arrived and the escrow releases automatically. If they do not confirm, or something is wrong, either side can open a dispute.

See how a trade worksthen keep going: trader, operator and builder guide paths →

Read the protocol

Every chapter published as a web page — no download, nothing behind a form. It assumes no prior blockchain experience and builds up from what money is. The numbered specifications sit alongside for implementers.

Start reading28 specificationsDownload PDFs
  1. 00Preface
  2. 01Executive Summarystart here
  3. 02Why OpenFiat Exists
  4. 03Design Philosophy
  5. 04System Architecture
  6. 05The OpenFiat Network Protocol (OFNP)
  7. …22 more chapters

Build it with us

Every layer is open source under Apache-2.0, and the specs repo accepts prose and translations — contributing does not have to mean code.

openfiat-specsThe canonical protocol specifications and the whitepaper. Everything on this site is generated from it.Markdownopenfiat-coreThe reference node, in Rust. Peer-to-peer networking, gossip, marketplace state, snapshots and the node APIs.Rustopenfiat-sdksOfficial SDKs for Rust, TypeScript and Python, plus the shared reference data they depend on.Rust · TypeScript · Pythonopenfiat-appThe default web application: trading, network view, staking, governance, disputes and history.TypeScriptopenfiat-appsAdditional applications — merchant dashboard and network explorer.TypeScriptopenfiat-devtoolsTest networks, protocol conformance vectors, benchmarks and fuzzing.Rustopenfiat-infraContainer images, Helm charts, Terraform modules and the monitoring stack.Terraform · Helmopenfiat-docsThe developer documentation site.TypeScriptopenfiat-orgThis website.TypeScriptawesome-openfiatA community-curated list of OpenFiat projects, tools and resources.Community

The OPEN community presale

OPEN is the stake behind every role that keeps the marketplace honest — merchants, arbitrators, nodes, oracles. The presale offers the community allocation at a fixed rate before any public sale. The presale is live on devnet; connecting a wallet lets you contribute today.

Connect walletSale terms & allocation
Presale rate
1 USDC = 100 OPEN
Public sale after
1 USDC = 80 OPEN
Supply
100,000,000,000 · mint authority unset
Status
Live on devnet