CoreXus DEX Developer Documentation

USD per VTRS from the VTRS/USDC pool's reserves on Vitreus, at the finalized block — the pool found by asset id, never by symbol, and the only price source this site has. A price is published only from mainnet. The site currently reads a devnet: there vtrsUsd is null with reason: "test_network" (status 200), because a pool we seeded on a test chain is not a market. Its ratio is under poolRate for anyone who wants the test figure, labelled as such. On mainnet the endpoint responds 503 with vtrsUsd: null and a reason when there is no DEX or no such pool; nothing is estimated and no third-party price is consulted. network names the chain the figures were read on, by genesis hash. change24h is null unless the market has a price at both ends of the window.

curl https://corexusdex.com/api/vtrs-usd

Response shape (illustrative — values are placeholders, not sample data):

{
  "symbol": "VTRS",
  "quote": "USD",
  "vtrsUsd": <number> | null,      // USD per VTRS; mainnet only
  "reason": null | "test_network" | "no_dex" | "no_pool"
          | "usdc_unconfigured" | "pool_read_failed",
  "change24h": <number> | null,    // fraction over 24h, e.g. 0.012 = +1.2%
  "network": {
    "key": "mainnet" | "testnet" | "devnet" | null,   // null: unknown chain
    "label": "Mainnet" | "Testnet" | "Devnet" | null,
    "genesis": "<0x… genesis hash>",
    "isTestNetwork": <boolean>     // true unless mainnet; unknown counts as test
  },
  "poolRate": null | {             // test networks only: NOT a market price
    "usd": <number> | null,
    "change24h": <number> | null,
    "note": "<why this is not a price>"
  },
  "source": {
    "kind": "pool",
    "pool": "native-<usdc asset id>",   // the pool the reserves were read from
    "base": "native",
    "quoteAsset": "<usdc asset id>"
  },
  "finalized": <number>,           // block the reserves were read at
  "generatedAt": <ms since epoch>
}

Price Widget

Displays live VTRS price with 24h change, from mainnet only; on a test network it shows “no market price” and no number. Two lines of HTML, zero dependencies.

<script src="https://corexusdex.com/widget.js"></script>
<div id="vtrs-widget"></div>

• Per-pool fee routing (D4, runtime 219): every swap on a native-quoted pool routes protocol and creator slices, snapshotted per pool; pool accounts re-derived by hash after a collision on 20-byte accounts (D8, Finding 13, runtime 220)
• pallet-launch-treasury (index 59, runtime 221): a slice of every launch token trade on both legs is staked with validators as one pooled cooperator, the LNRG yield is sold to the energy broker and burns the token back on its own venue; dormant launches retire and their principal is burned into the venue. /treasury is the pitch with live figures; the launch page carries the treasury card; the site's indexer runs the keeper
• A table of every shape the frontend assumes about the chain, checked against the runtime's metadata at every connect, after three client-side mirrors drifted silently in a week
• Adversarial review of the three pallets (2026-09-17): eleven findings, all fixed red→green (runtimes 222, 223 and 224); a proptest fuzz harness over arbitrary call sequences with every invariant checked after every step
• Creator record beside every creator address; a Telegram launch feed on the indexer (off until a channel exists); Launch in the phone's bottom bar; devnet lines on Markets, Swap and the pool pages