EchoARC protocol documentation

EchoARC is an Arc-native launch protocol that creates the final Uniswap V3 market at launch. Liquidity does not migrate at graduation, and the LP NFT remains in permanent protocol custody.

Arc chain ID 5042USDC marketsUniswap V3 · 1%Verified contracts

Overview

Every EchoARC token has a fixed supply of one billion tokens. The full supply is minted into a single-sided Uniswap V3 position at an initial fully diluted market value of 3,000 USDC. The position NFT is transferred to the permanent LP Vault in the same launch transaction.

Graduation is a status milestone. It does not create another pool, transfer liquidity, or replace the token contract.

Launch lifecycle

  1. 01
    Create

    The creator submits immutable name, symbol and metadata fields. EchoARC deploys a fixed-supply ERC-20 with CREATE2.

  2. 02
    Initialize the final market

    The Factory creates the token/USDC 1% Uniswap V3 pool and initializes the 3,000 USDC starting valuation.

  3. 03
    Lock the LP position

    The complete single-sided position is transferred to the permanent Vault. The Vault has no NFT withdrawal, approval, migration or upgrade function.

  4. 04
    Trade

    Buys and sells settle against canonical Arc USDC. The Factory exposes native USDC and ERC-20 USDC entry points.

  5. 05
    Graduate

    When the pool's real USDC balance reaches 9,000 USDC, the token is marked graduated. The same pool and LP NFT continue operating.

Protocol parameters

Token supply1,000,000,000
Initial market value3,000 USDC
Graduation threshold9,000 USDC pool balance
Pool fee tier1% · 10,000
Launch fee0.0005 USDC

The displayed market cap is calculated from the live V3 square-root price and fixed token supply. Graduation progress is based on the pool's canonical USDC balance, not on a virtual balance.

Creator fees

The LP Vault accumulates both sides of the Uniswap V3 trading fees. CallingcollectEchoFeesForToken(token) collects available fees and sends the token creator's available fees directly to the immutable creator address.

USDC + token
Paid to the token creator
  • The token creator recipient address is immutable.
  • Anyone may trigger collection; the creator fees cannot be redirected.
  • Collecting fees never removes liquidity or transfers the LP NFT.
  • The token detail page displays only the fees due to the token creator.

Verified contracts

Factory proxyView verified code ↗
0x0D68acd62B86Bce33AE1d1Edf33b60FDfb77889d

Canonical user-facing entry point for launches and trades.

Factory implementationView verified code ↗
0x5c9F6Af0e576067Db2E0f4849255af48abc3067a

Verified EchoARC UUPS implementation.

Permanent LP VaultView verified code ↗
0x4F095001d53220c4f2665dD21Ae099109bfA9892

Non-upgradeable custody and fee-distribution vault.

Arc USDCView verified code ↗
0x3600000000000000000000000000000000000000

Canonical 6-decimal USDC interface used by every pool.

Integration reference

Chain ID
5042
Native currency
USDC · 18-decimal native interface
Canonical pool asset
USDC · 6-decimal ERC-20 interface
Explorer API
https://api.arc.exploreme.pro/api
Launch event
EchoLaunched(token, creator, pool, lpTokenId, initialMarketCapUsdc, graduationLiquidityUsdc, name, symbol)
Arc API documentation ↗Factory ABI ↗

Risk disclosures

  • Launch tokens can be volatile and may lose all value.
  • Names, symbols and metadata are creator-provided and are not endorsements.
  • Pool price can move sharply in low-liquidity conditions.
  • Graduation does not guarantee price, volume or future liquidity.
  • Users should verify the Arc chain ID and Factory address before signing.
Ready to use EchoARC?

Connect an Arc-compatible wallet or review the verified contracts first.

Create tokenExplore launches