> ## Documentation Index > Fetch the complete documentation index at: https://docs.solanatracker.io/llms.txt > Use this file to discover all available pages before exploring further. # Glossary > Plain-language definitions for Solana Tracker terms — wallet tags, sniper, bundler, KOL, PnL, datastream rooms, slippage, priority fees, and more. Use this page when a guide uses a term you have not seen before. The API names stay exact, but the explanations here use plain language. ## API Basics | Term | Plain meaning | | ----------------- | ------------------------------------------------------------------------------------------------------------------------ | | Data API | Solana Tracker's HTTP API for token prices, wallets, trades, holders, charts, and analytics. | | RPC | A direct way to ask a Solana node for blockchain data or to send transactions. | | WebSocket | A live connection that keeps sending updates after you subscribe. | | WebSocket room | A named live feed, such as `latest` or `price:{tokenAddress}`, that you join to receive messages. | | Cursor pagination | A way to load large lists in pages. The response gives you a `cursor`; send it in the next request to get the next page. | | API key | Your private key for using Solana Tracker APIs. Keep it secret. | ## Token And Trading Terms | Term | Plain meaning | | -------------- | ----------------------------------------------------------------------------------------------------------- | | Token mint | The Solana address that identifies a token. | | SPL token | A standard Solana token. Most tokens on Solana use this format. | | DEX | A decentralized exchange where users swap tokens on-chain. | | DEX aggregator | A tool that checks many exchanges and picks a route for a swap. | | Liquidity | Money in a trading pool that lets people buy and sell. | | Liquidity pool | A pool of tokens used for trading. More liquidity usually means smoother trades. | | LP | Short for liquidity provider or liquidity position, depending on context. | | Slippage | The price change you allow between quote time and trade time. | | Smallest units | Blockchain integer amounts without decimals. For example, lamports are the smallest unit of SOL. | | Bonding curve | A pricing path where the token price changes as people buy or sell before it moves to a normal pool. | | Graduation | When a token leaves its bonding curve and moves liquidity to a DEX pool. | | Rug pull | A risky token event where liquidity or safety disappears and buyers may not be able to sell safely. | | Sniper | A wallet that buys very early after a token launches. | | Bundler | A wallet or service that groups transactions together, often during launch. | | MEV | Profit made by changing or using transaction order. In these docs it often means bot-like trading behavior. | ## Price And Chart Terms | Term | Plain meaning | | ---------- | ------------------------------------------------------------------------------------- | | OHLCV | Open, high, low, close, and volume. These are the values used for candlestick charts. | | Open | The first price in a time window. | | High | The highest price in a time window. | | Low | The lowest price in a time window. | | Close | The last price in a time window. | | Volume | The amount traded in a time window. | | Market cap | Token price multiplied by supply, when supply data is available. | ## Wallet And PnL Terms | Term | Plain meaning | | -------------- | ------------------------------------------------------------------------------------- | | PnL | Profit and loss. It shows how much a wallet gained or lost. | | Realized PnL | Profit or loss from tokens already sold. | | Unrealized PnL | Paper profit or loss on tokens still held. It changes when price changes. | | Total PnL | Realized PnL plus unrealized PnL. | | Cost basis | What the wallet paid for a token position. | | FIFO | First in, first out. The oldest buys are matched to sells first when calculating PnL. | | Open position | Tokens the wallet still holds. | | Equity curve | A line chart of wallet value over time. | | Drawdown | A drop from a high point to a lower point. | | Quote asset | The token used as the price side of a trade, such as SOL or a stablecoin. | ## Solana Infrastructure Terms | Term | Plain meaning | | ----------- | ----------------------------------------------------------------------------------- | | Slot | A short time window when Solana can produce a block. | | Block | A group of transactions recorded by the network. | | Entry | A lower-level part of a block that helps show transaction order. | | Shred | A small piece of Solana block data sent across the network. | | Leader | The validator scheduled to produce a block for a slot. | | Commitment | How final a result is. Common levels are `processed`, `confirmed`, and `finalized`. | | `processed` | Fastest, but the result can still change. | | `confirmed` | Slower, with stronger network agreement. | | `finalized` | Slowest, with the strongest finality. | | gRPC | A fast streaming protocol used by Yellowstone for live Solana data. |