# Glossary

**Tool:** These are external services that AI agents call or interact with to perform specific actions or to increase their capabilities.

**Fiat on-ramps:** These are services that allow anyone to receive cryptocurrency in exchange for traditional currency.

**Fiat off-ramps:** These are services that allow anyone to receive traditional currency in exchange for cryptocurrency.

**Model Context Protocol (MCP):** An open protocol that facilitates interaction with AI models with external services.

**Sub-second finality:** The ability of a blockchain to facilitate, finalize, and make irreversible any transactions typically under a second.

**Executable NFT (xNFT):** An xNFT on Skynet is an NFT that is ownable, can be deployed, can hold an AI agent, can be monetized, and is modular.

**Chain abstraction:** It is a design principle or philosophy that enhances a user experience by unifying transactions or actions for different blockchains in one interface.

**Chain Agnostic:** A design approach allows any protocol to work with different blockchains without being tied to one.


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# 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://documentation.skynet.io/skynet/concepts/glossary.md?ask=<question>
```

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.