# Value tracking

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Meme20’s value is designed to track the aggregate market capitalization of the top 20 meme tokens in real time. This is accomplished through integration with external data providers such as:

1. **CoinGecko**: Provides free and reliable market data, including pricing and market capitalization information.
2. **CoinMarketCap (CMC)**: Offers premium services with more advanced analytics and tracking options.
3. **Alternative APIs**: Ensures redundancy and data reliability through additional providers.

#### **How It Works:**

* **Periodic Market Data Fetching**: External APIs are queried every 30 minutes to fetch the latest market cap data.
* **Index Calculation**: The market cap data for the top 20 meme tokens is aggregated.
* **Rebase Adjustments**: The total supply of Meme20 is adjusted based on the index, ensuring its value reflects the underlying assets.

#### **Meme20 Index Mechanism:**

* **Starting Point**: Meme20 begins with an initial supply of 80 million tokens, representing the total market capitalization of the top 20 meme tokens at launch.
* **Real-Time Updates**: Market cap changes are fetched via APIs and recalculated every 30 minutes.
* **Proportional Adjustment**: Meme20’s supply adjusts proportionally to match fluctuations in the total market cap of the tracked tokens.

#### **Transparency:**

* All data used for tracking is sourced from publicly available APIs.
* Logs of rebase events and supply adjustments are available on-chain for verification.