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

# Introduction

> One API for every AI tool your agent needs.

Spiral gives your agent every AI tool through one API key and one balance. Send a provider, a tool and its input;
Spiral prices the run before it starts, runs it on the provider and charges the measured usage.

> [card] [Quickstart](/docs/quickstart.md)
>
> Create a key and make your first run.

> [card] [Connect your agent](/docs/mcp-server.md)
>
> Add the hosted MCP server to Claude Code, Codex, Cursor or VS Code.

> [card] [API reference](/docs/api-reference/introduction.md)
>
> Every endpoint, with its request and response.

> [card] [Runs and pricing](/docs/concepts/pricing.md)
>
> How to work out a run's price, and how it is held and charged.


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