# Gas Tracker
Whenever a user buys, sells, trades, or mints an NFT on GhostMarket, they will need to pay a “gas fee”. Gas fees are required to perform transactions on a blockchain, and the price often dictates how fast your transaction will be completed. This is important to keep in mind, as paying too little gas could result in longer wait times or a transaction failing all together.
GhostMarket’s gas tracking feature assists users by showing the current gas prices across all of our supported blockchains. Network gas prices are displayed in real-time through the tracker’s UI, which also has additional settings to check the cost of transactions at various speeds.
To open the fee strategy menu within the gas tracker, click on any blockchain. From there, users can choose between slow, standard, fast, and instant transaction speeds which will show various gas prices. Alternatively, leaving the gas tracker set to default will show your current transaction speed prices based on your wallet’s settings.
The gas tracking feature is great for taking advantage of low gas prices when they’re available, or being able to wait until high gas prices go down.
---
# Agent Instructions: Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.
Perform an HTTP GET request on the current page URL with the `ask` query parameter:
```
GET https://docs.ghostmarket.io/user-guides/platform-features-and-tools/gas-tracker.md?ask=
```
The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.
Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.