> ## Documentation Index
> Fetch the complete documentation index at: https://docs.asgcompute.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Glossary

> ASG terminology reference

# Glossary

Key terms and concepts used in ASG Agent Cloud.

## A

### Agent

An autonomous AI system that can call tools, make decisions, and execute tasks without continuous human intervention.

## B

### Budget

Maximum spend limit for a Run or Step. Prevents runaway costs.

## G

### Gasless

Payment model where ASG covers Solana transaction fees. Users only need USDC.

## I

### Idempotency Key

Unique identifier ensuring a request is processed only once, even if retried.

## L

### Lease

A timed allocation of GPU resources. Requires heartbeat to maintain.

## M

### MCP (Model Context Protocol)

Standard protocol for agent-to-service communication. Used by ASG for all tool interactions.

### microusd

1/1,000,000 of a USD. ASG uses microusd for precise billing.

* 1 USD = 1,000,000 microusd
* \$0.01 = 10,000 microusd

## Q

### Quote

A price commitment for a specific request with an expiration time.

## R

### Receipt

Proof of completed work, including actual cost and refund (if any).

### Run

Container for related work. Has a budget, TTL, and contains Steps.

## S

### Step

Single tool execution within a Run. Generates one Receipt.

## T

### TTL (Time-to-Live)

Expiration time for resources (quotes, leases, runs).

## U

### USDC

USD Coin — the stablecoin used for all ASG payments on Solana.