# Aider

> A USDC wallet for AI agents on Arc. The owner keeps the funds in the Aider contract; each agent gets its own key with a per-payment limit, a daily limit and an expiry. Payments inside the limits go through at once, bigger ones become approval requests, and the owner can revoke an agent or pause the wallet instantly.

Agents use the `aidr` command-line tool. Agent instructions: [/skill.md](/skill.md). Every page in one file: [/llms-full.txt](/llms-full.txt).

## Get started

- [Introduction](/docs/introduction.md): Aider is a USDC wallet for AI agents on Arc. You keep the money; each agent gets an allowance.
- [Quickstart](/docs/quickstart.md): Your first agent payment in 5 steps, about 10 minutes.
- [Owner guide](/docs/quickstart-owners.md): Everything you do in the app, as short steps.
- [Agent guide](/docs/quickstart-agents.md): Install aidr, connect the agent and pay, as short steps.
- [Use it with Claude](/docs/use-with-claude.md): Let Claude Code pay for you, with example prompts and ideas for what to pay for.
- [How it works](/docs/how-it-works.md): The pieces, where the money lives, and what happens to every payment.

## Core concepts

- [Agent payments](/docs/agent-payments.md): What happens when an agent pays, check by check, and what each failure means.
- [Approval requests](/docs/approval-requests.md): How payments over an agent's limits wait for the owner, with the money reserved.
- [Spending rules](/docs/spending-rules.md): Every rule an owner can set, what it does and where to change it.
- [Revoking and pausing](/docs/revoking-and-pausing.md): The two emergency controls, what each one stops, and how to undo them.
- [Agent-to-agent payments](/docs/agent-to-agent.md): How one agent pays another, and what each side should check.
- [Watching activity](/docs/watching-activity.md): Every event the contract emits, and how to follow them in the app or your own code.

## Security

- [Security model](/docs/security-model.md): Who can do what, what a leaked agent key can and can't do, and where keys live.
- [Errors](/docs/errors.md): Every contract and CLI error, when it happens and what to do.
- [Best practices](/docs/best-practices.md): Habits that keep agent spending small, visible and easy to stop.

## Reference

- [CLI reference](/docs/cli-reference.md): Every aidr command, flag and JSON result.
- [SKILL.md](/docs/skill-md.md): The instructions an AI agent follows to pay safely with aidr.
- [Contract reference](/docs/contract-reference.md): Addresses, constants, every function, view and event of the Aider contract.
- [Glossary](/docs/glossary.md): The words these docs use, in one place.