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Mezo provides market data through two oracle systems: Skip Connect for BTC/USD and Pyth Network for additional price feeds.

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Overview

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Skip Oracle

The Skip oracle provides native BTC/USD price feeds on Mezo through a Chainlink-compatible aggregator interface.
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Supported pair
string
BTC/USD only
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Update frequency
string
Every block
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Interface
string
Chainlink Aggregator

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Pyth Oracle

The Pyth oracle provides multiple price feeds beyond BTC/USD. Update frequency: Depends on the tokens pair.
Price is being updated when price_deviation deviates more than a set threshold (in percentage points) or every time_difference seconds, whichever is first.

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Best Practices

When building dApps that consume oracle data, follow these guidelines:
  • Validate freshness: Always check timestamps and block numbers to detect stale data. Set appropriate staleness thresholds for your use case.
  • Set price bounds: Implement sanity checks on price values to detect anomalies or manipulation attempts.
  • Monitor market conditions: Be aware of volatility, liquidity, and potential manipulation events that may require pausing your application.
  • Security audits: Ensure your contracts and dependencies meet security standards. Audit code that handles oracle data to prevent exploits.

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Reading Price Feeds

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Using Skip Oracle (BTC/USD)

The Skip oracle implements a Chainlink-compatible interface. Call latestRoundData() to retrieve the latest price: Contract: 0x7b7c000000000000000000000000000000000015 Return values:
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roundId
uint256
The round ID when the price was updated
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answer
int256
The BTC/USD price (use decimals() to get the decimal precision)
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startedAt
uint256
Unix timestamp when the round started
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updatedAt
uint256
Unix timestamp when the round was last updated

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Using Pyth Oracle (Multiple Feeds)

Pyth provides multiple price feeds through its EVM contracts. Use getPriceNoOlderThan(pair_id, maxAgeSeconds) to fetch prices with built-in staleness checks.

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Contract Addresses

0x2880aB155794e7179c9eE2e38200202908C17B43
Contract Mezo Mainnet: 0x2880aB155794e7179c9eE2e38200202908C17B43 Contract Mezo Testnet: 0x2880aB155794e7179c9eE2e38200202908C17B43 Contract Ethereum Mainnet: 0x4305FB66699C3B2702D4d05CF36551390A4c69C6 Contract Ethereum Sepolia: 0xDd24F84d36BF92C65F92307595335bdFab5Bbd21

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Example Implementation

Example to fetch the price for a given price id: 
import "@pythnetwork/pyth-sdk-solidity/IPyth.sol";
import "@pythnetwork/pyth-sdk-solidity/PythStructs.sol";

contract ReadPythPrice {
    IPyth public immutable pyth;

    constructor(address pythContract) {
        pyth = IPyth(pythContract); // 0x2880aB155794e7179c9eE2e38200202908C17B43 on Mezo
    }

    function getPrice(bytes32 priceId, uint256 maxAgeSeconds)
        external
        view
        returns (int64 price, uint64 conf, int32 expo, uint256 publishTime)
    {
        PythStructs.Price memory priceData = pyth.getPriceNoOlderThan(priceId, maxAgeSeconds);
        return (priceData.price, priceData.conf, priceData.expo, priceData.publishTime);
    }

    // Example: Get MUSD/USD price
    function getMUSDPrice() external view returns (int64, uint256) {
        bytes32 musdPriceId = 0x0617a9b725011a126a2b9fd53563f4236501f32cf76d877644b943394606c6de;
        PythStructs.Price memory price = pyth.getPriceNoOlderThan(musdPriceId, 3600); // Max 1 hour old
        return (price.price, price.publishTime);
    }
}
Reference: getPriceNoOlderThan API documentation

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Offchain Price Data

You can query price feeds and metadata directly from the Pyth Network without interacting with the blockchain:

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Available Price Feeds

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Skip Oracle Feeds

Available on both Mezo mainnet and testnet:
PairContract AddressNetwork
BTC/USD0x7b7c000000000000000000000000000000000015Mainnet
BTC/USD0x7b7c000000000000000000000000000000000015Testnet
Node API (Testnet only): http://mezo-node-0.test.mezo.org:1317/connect/oracle/v2/get_price?currency_pair=BTC/USD

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Pyth Oracle Feeds

Available on:
  • Mezo Mainnet at 0x2880aB155794e7179c9eE2e38200202908C17B43
  • Mezo Testnet at 0x2880aB155794e7179c9eE2e38200202908C17B43
  • Ethereum Mainnet at 0x4305FB66699C3B2702D4d05CF36551390A4c69C6
  • Ethereum Sepolia at 0xDd24F84d36BF92C65F92307595335bdFab5Bbd21

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Supported Price Feed IDs (Mezo)

PairPrice Feed ID
SolvBTC/USD0xf253cf87dc7d5ed5aa14cba5a6e79aee8bcfaef885a0e1b807035a0bbecc36fa
MUSD/USD0x0617a9b725011a126a2b9fd53563f4236501f32cf76d877644b943394606c6de
BTC/USD0xe62df6c8b4a85fe1a67db44dc12de5db330f7ac66b72dc658afedf0f4a415b43
cbBTC/USD0x2817d7bfe5c64b8ea956e9a26f573ef64e72e4d7891f2d6af9bcc93f7aff9a97
USDC/USD0xeaa020c61cc479712813461ce153894a96a6c00b21ed0cfc2798d1f9a9e9c94a
USDT/USD0x2b89b9dc8fdf9f34709a5b106b472f0f39bb6ca9ce04b0fd7f2e971688e2e53b
T/USD0x7a072b799215196b0ecb6a58636ec312bce8461dcc33c28c3a046b1e636d121d

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Supported Price Feed IDs (Ethereum)

PairPrice Feed ID
MUSD/USD0x0617a9b725011a126a2b9fd53563f4236501f32cf76d877644b943394606c6de
USDT/USD0x2b89b9dc8fdf9f34709a5b106b472f0f39bb6ca9ce04b0fd7f2e971688e2e53b
Requesting additional price feeds: To enable additional Pyth price feeds, browse the complete list of available price feed IDs and contact the Mezo team to request onchain activation.

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