For AI Agents

Compress.FAST publishes a machine-readable skill file that any AI agent can download and immediately use to call the API.

Give this prompt to your AI agent

Copy and paste the following into Claude Code, ChatGPT, Cursor, or any AI coding assistant:

Bash / macOS / Linux

Download the Compress.FAST skill and reference docs, then use them to complete my task:

curl -fsSL https://compress.fast/SKILL.md -o SKILL.md
mkdir -p reference && curl -fsSL https://compress.fast/api/docs.md -o reference/docs.md
curl -fsSL https://compress.fast/compress.fast.sh -o compress.fast.sh && chmod +x compress.fast.sh

Read SKILL.md to understand how to use the Compress.FAST API.

PowerShell / Windows

Download the Compress.FAST skill and reference docs, then use them to complete my task:

Invoke-RestMethod "https://compress.fast/SKILL.md" -OutFile SKILL.md
New-Item -ItemType Directory -Force -Path reference | Out-Null
Invoke-RestMethod "https://compress.fast/api/docs.md" -OutFile reference/docs.md
Invoke-RestMethod "https://compress.fast/compress.fast.ps1" -OutFile compress.fast.ps1

Read SKILL.md to understand how to use the Compress.FAST API.

Your agent will download everything it needs — the skill guide, the core API reference, and the CLI wrapper script — then follow the instructions to compress files on your behalf.

What the agent gets

File	Purpose	Tokens
`SKILL.md`	How to use the API: setup, CLI, raw API flow, discovery, errors	~2k
`reference/docs.md`	Full API reference: endpoints, models, compressor details, error codes	~29.2k tokens
`compress.fast.sh`	Bash wrapper that handles submit, poll, and download in one command	—
`compress.fast.ps1`	PowerShell wrapper (same functionality, for Windows/PowerShell environments)	—

API key

Your agent will need a Compress.FAST API key. Get one at accounts.tools.fast → API Keys, then set it as an environment variable:

export TOOLS_FAST_API_KEY="fast_prod_your_key_here"

$env:TOOLS_FAST_API_KEY = "fast_prod_your_key_here"

Convert.FAST — convert files between 200+ formats (images, documents, audio, video, archives, ebooks, fonts)

Getting Started

Authentication

# For AI Agents

Compress.FAST publishes a machine-readable skill file that any AI agent can download and immediately use to call the API.

## Give this prompt to your AI agent

Copy and paste the following into Claude Code, ChatGPT, Cursor, or any AI coding assistant:

### Bash / macOS / Linux
```text
Download the Compress.FAST skill and reference docs, then use them to complete my task:

curl -fsSL https://compress.fast/SKILL.md -o SKILL.md
mkdir -p reference && curl -fsSL https://compress.fast/api/docs.md -o reference/docs.md
curl -fsSL https://compress.fast/compress.fast.sh -o compress.fast.sh && chmod +x compress.fast.sh

Read SKILL.md to understand how to use the Compress.FAST API.
```

### PowerShell / Windows
```text
Download the Compress.FAST skill and reference docs, then use them to complete my task:

Invoke-RestMethod "https://compress.fast/SKILL.md" -OutFile SKILL.md
New-Item -ItemType Directory -Force -Path reference | Out-Null
Invoke-RestMethod "https://compress.fast/api/docs.md" -OutFile reference/docs.md
Invoke-RestMethod "https://compress.fast/compress.fast.ps1" -OutFile compress.fast.ps1

Read SKILL.md to understand how to use the Compress.FAST API.
```

Your agent will download everything it needs — the skill guide, the core API reference, and the CLI wrapper script — then follow the instructions to compress files on your behalf.

## What the agent gets

| File | Purpose | Tokens |
|------|---------|--------|
| `SKILL.md` | How to use the API: setup, CLI, raw API flow, discovery, errors | ~2k |
| `reference/docs.md` | Full API reference: endpoints, models, compressor details, error codes | {{all-docs-tokens}} |
| `compress.fast.sh` | Bash wrapper that handles submit, poll, and download in one command | — |
| `compress.fast.ps1` | PowerShell wrapper (same functionality, for Windows/PowerShell environments) | — |

## API key

Your agent will need a Compress.FAST API key. Get one at [accounts.tools.fast](https://accounts.tools.fast/account/register) → **API Keys**, then set it as an environment variable:

```bash
export TOOLS_FAST_API_KEY="fast_prod_your_key_here"
```

```powershell
$env:TOOLS_FAST_API_KEY = "fast_prod_your_key_here"
```

## Related APIs

- [Convert.FAST](https://convert.fast/api) — convert files between 200+ formats (images, documents, audio, video, archives, ebooks, fonts)

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