# Core Concepts Documentation

The concepts needed to understand agents, tools, workflows, credentials, payments, and credits.

Canonical URL: https://www.agentpmt.com/docs/core-concepts

## [Tools / Connectors](https://www.agentpmt.com/docs/core-concepts/what-is-a-tool)

Understand what tools are on AgentPMT and how your AI agent uses them to get things done.

Markdown: https://www.agentpmt.com/docs/core-concepts/what-is-a-tool.md

## [Workflows](https://www.agentpmt.com/docs/core-concepts/what-is-a-workflow)

Learn how workflows chain multiple tools together into reusable, automated sequences your agent can run.

Markdown: https://www.agentpmt.com/docs/core-concepts/what-is-a-workflow.md

## [Agents](https://www.agentpmt.com/docs/core-concepts/agents)

Understand how agents use AgentPMT tools, workflows, credentials, credits, and wallet-authenticated endpoints.

Markdown: https://www.agentpmt.com/docs/core-concepts/agents.md

## [Agent Groups](https://www.agentpmt.com/docs/core-concepts/agent-groups)

Understand how agent groups control tool access, credentials, spending limits, and wallet addresses for connected agents.

Markdown: https://www.agentpmt.com/docs/core-concepts/agent-groups.md

## [Credentials](https://www.agentpmt.com/docs/core-concepts/how-credentials-work)

Learn how AgentPMT securely manages API keys, OAuth tokens, and passwords your tools need to function.

Markdown: https://www.agentpmt.com/docs/core-concepts/how-credentials-work.md

## [Credits & Billing](https://www.agentpmt.com/docs/core-concepts/what-are-credits)

Understand how credits work on AgentPMT -- how to buy them, where they are spent, and how to review activity.

Markdown: https://www.agentpmt.com/docs/core-concepts/what-are-credits.md

## [Setting Spending Caps](https://www.agentpmt.com/docs/core-concepts/setting-spending-caps)

Learn how to set spending caps on your AI agent's Agent Groups to control costs and prevent overspending.

Markdown: https://www.agentpmt.com/docs/core-concepts/setting-spending-caps.md

## [Browsing the Marketplace](https://www.agentpmt.com/docs/core-concepts/browsing-the-marketplace)

Find tools and workflows for your AI agent in the AgentPMT marketplace.

Markdown: https://www.agentpmt.com/docs/core-concepts/browsing-the-marketplace.md

## [Adding Tools to an Agent Group](https://www.agentpmt.com/docs/core-concepts/adding-tools-to-an-agent-group)

Click Enable on any tool or workflow to attach it to your AI agent's Agent Group.

Markdown: https://www.agentpmt.com/docs/core-concepts/adding-tools-to-an-agent-group.md