agentgen-cli-0.1.3 is not a library.

agentgen · Rust SDK + CLI

Async Rust client and command-line tool for the AgentGen API — HTML → PDF and HTML → Image generation.

This directory is a Cargo workspace with two crates:

Crate	Type	Description
`agentgen`	Library	Async Rust client — use in your own Rust projects
`agentgen-cli`	Binary	`agentgen` CLI — use from any shell or CI pipeline

Library — `agentgen`

Adding to your project

# Cargo.toml
[dependencies]
agentgen = { path = "./agentgen" }   # local
# — or once published to crates.io —
agentgen = "0.1"

tokio = { version = "1", features = ["full"] }

Quick start

use agentgen::{AgentGenClient, types::{GenerateImageRequest, ImageFormat, PdfPage, PdfFormat, GeneratePdfRequest}};

#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    let client = AgentGenClient::new(std::env::var("AGENTGEN_API_KEY")?);

    // Render HTML to a PNG image
    let image = client
        .generate_image(
            GenerateImageRequest::new("<h1 style='font-family:sans-serif'>Hello!</h1>")
                .viewport_width(1200)
                .format(ImageFormat::Png),
        )
        .await?;

    println!("Image URL: {}", image.url);

    // Render HTML to a PDF
    let pdf = client
        .generate_pdf_with_optimize(GeneratePdfRequest::SinglePage(
            PdfPage::new("<h1>Invoice #42</h1><p>Amount due: $99.00</p>")
                .format(PdfFormat::A4)
                .print_background(true),
        ), Some(true))
        .await?;

    println!("PDF URL: {}", pdf.url);

    // Check balance
    let balance = client.get_balance().await?;
    println!("Remaining tokens: {}", balance.tokens);

    Ok(())
}

Creating the client

// Production (default base URL: https://www.agent-gen.com/api)
let client = AgentGenClient::new("agk_...");

// Custom base URL — useful for local development or testing
let client = AgentGenClient::with_base_url("agk_...", "http://localhost:3000/api");

`generate_image` — Costs 1 token

Build a GenerateImageRequest with the provided builder methods and await the call.

use agentgen::types::{GenerateImageRequest, ImageFormat};

let result = client
    .generate_image(
        GenerateImageRequest::new("<div style='background:#6366f1;color:#fff;padding:40px'>Hello</div>")
            .viewport_width(1200)      // default: 1200
            .viewport_height(800)      // default: 800
            .selector("#card")         // optional CSS selector to capture
            .format(ImageFormat::Png)  // Png | Jpeg | Webp, default Png
            .device_scale_factor(2.0), // 1.0–3.0, default 2.0
    )
    .await?;

println!("URL:        {}", result.url);
println!("Size:       {}×{}", result.width, result.height);
println!("Format:     {:?}", result.format);
println!("Tokens:     {}", result.tokens_used);
println!("Request ID: {}", result.request_id);

GenerateImageRequest::new(html) is the only required call; all builder methods are optional.

`generate_pdf` — Costs 2 tokens per page

Pass a GeneratePdfRequest — either SinglePage(PdfPage) for one page, or MultiPage { pages: Vec<PdfPage> } for multiple pages. Use generate_pdf_with_optimize(..., Some(false)) if you need the unoptimized Chromium PDF.

Single-page PDF

use agentgen::types::{GeneratePdfRequest, PdfPage, PdfFormat, PdfMargin, PdfPageSizeSource};

let result = client
    .generate_pdf_with_optimize(GeneratePdfRequest::SinglePage(
        PdfPage::new(r#"
            <html>
              <body style="font-family:sans-serif;padding:40px">
                <h1>Invoice #42</h1>
                <p>Amount due: $99.00</p>
              </body>
            </html>
        "#)
        .page_size_source(PdfPageSizeSource::Css)
        .format(PdfFormat::A4)        // A4 | Letter | A3 | Legal
        .landscape(false)             // default false
        .print_background(true)       // default true
        .margin(PdfMargin {
            top: Some("20mm".into()),
            bottom: Some("20mm".into()),
            left: Some("15mm".into()),
            right: Some("15mm".into()),
        }),
    ), Some(true))
    .await?;

println!("PDF URL:   {}", result.url);
println!("Pages:     {}", result.pages);
println!("Tokens:    {}", result.tokens_used);

Shorthand for uniform margins

use agentgen::types::PdfMargin;

// Sets top/bottom/left/right to the same value
let margin = PdfMargin::all("20mm");

Multi-page PDF

let result = client
    .generate_pdf_with_optimize(GeneratePdfRequest::MultiPage {
        pages: vec![
            PdfPage::new("<h1 style='padding:40px'>Page 1 — Cover</h1>")
                .page_size_source(PdfPageSizeSource::Css)
                .format(PdfFormat::A4),
            PdfPage::new("<h1 style='padding:40px'>Page 2 — Content</h1>")
                .page_size_source(PdfPageSizeSource::Css)
                .format(PdfFormat::A4)
                .landscape(true),
            PdfPage::new("<h1 style='padding:40px'>Page 3 — Appendix</h1>")
                .page_size_source(PdfPageSizeSource::Css)
                .format(PdfFormat::A4)
                .margin(PdfMargin::all("10mm")),
        ],
    }, Some(true))
    .await?;

println!("Generated {} pages, used {} tokens", result.pages, result.tokens_used);

Up to 100 pages per request.

`upload_temp` — Free

Upload a local file so you can reference it by URL inside your HTML. Auto-deleted after 24 hours.

use std::path::Path;

let upload = client.upload_temp(Path::new("./logo.png")).await?;

println!("URL:        {}", upload.url);
println!("Key:        {}", upload.key);
println!("Size:       {} bytes", upload.size);
println!("Expires at: {}", upload.expires_at);

// Embed the URL in HTML and then generate
let image = client
    .generate_image(
        GenerateImageRequest::new(format!(
            r#"<img src="{}" style="width:200px" />"#,
            upload.url
        )),
    )
    .await?;

`get_balance` — Free

let balance = client.get_balance().await?;
println!("Remaining tokens: {}", balance.tokens);

Error handling

All methods return Result<T, AgentGenError>. The error type is defined in agentgen::AgentGenError:

use agentgen::AgentGenError;

match client.generate_image(req).await {
    Ok(result) => println!("{}", result.url),
    Err(AgentGenError::InsufficientTokens { balance, required, buy_more_url }) => {
        eprintln!("Not enough tokens. Have {balance}, need {required}.");
        eprintln!("Buy more at: {buy_more_url}");
    }
    Err(AgentGenError::Api { status, message, detail }) => {
        eprintln!("API error {status}: {message}");
        if let Some(d) = detail {
            eprintln!("Detail: {d}");
        }
    }
    Err(AgentGenError::Http(e)) => eprintln!("Network error: {e}"),
    Err(AgentGenError::Io(e)) => eprintln!("I/O error: {e}"),
}

`AgentGenError` variants

Variant	When	Fields
`Api { status, message, detail }`	Non-2xx API response (except 402)	HTTP status, error message, optional detail
`InsufficientTokens { balance, required, buy_more_url }`	HTTP 402	Current balance, required tokens, buy URL
`Http(reqwest::Error)`	Network / transport failure	Wrapped reqwest error
`Io(std::io::Error)`	File read failure (upload_temp)	Wrapped I/O error

Type reference

use agentgen::types::{
    // Image
    GenerateImageRequest,
    GenerateImageResponse,
    ImageFormat,        // Png | Jpeg | Webp

    // PDF
    GeneratePdfRequest, // SinglePage(PdfPage) | MultiPage { pages }
    GeneratePdfResponse,
    PdfPage,
    PdfMargin,
    PdfFormat,          // A4 | Letter | A3 | Legal
    PdfPageSizeSource,  // Css | Format

    // Upload
    UploadTempResponse,

    // Balance
    BalanceResponse,
};

CLI — `agentgen`

The agentgen binary lets you use the API directly from a terminal, shell script, or CI pipeline without writing any code.

Building

# From the rust/ workspace root
cargo build --release -p agentgen-cli

# The binary is at:
./target/release/agentgen

Or install it system-wide:

cargo install --path agentgen-cli

Authentication

Provide your API key via the AGENTGEN_API_KEY environment variable (recommended) or the --api-key flag:

export AGENTGEN_API_KEY="agk_..."

# or pass it inline
agentgen --api-key agk_... balance

`agentgen balance`

Check your current token balance.

$ agentgen balance
Token balance: 42

`agentgen image`

Render HTML to an image (PNG / JPEG / WebP). Costs 1 token.

agentgen image (--html <string> | --file <path>)
               [--viewport-width <px>]
               [--viewport-height <px>]
               [--selector <css>]
               [--format png|jpeg|webp]
               [--scale <1-3>]
               [--output <path>]

Inline HTML:

agentgen image --html '<h1 style="font-family:sans-serif">Hello!</h1>' \
               --viewport-width 1200

From a file:

agentgen image --file ./template.html --viewport-width 1200 --format png

Download the result locally:

agentgen image --file ./og-template.html \
               --viewport-width 1200 \
               --selector '#card' \
               --output og-image.png

Example output:

✓ Image generated
  URL:           https://…/output.png
  Dimensions:    1200 × 630 px
  Format:        PNG
  Tokens used:   1
  Request ID:    req_abc123
✓ Saved → og-image.png

Options:

Flag	Default	Description
`--html <string>`	—	Inline HTML string to render
`--file <path>`	—	Read HTML from a file (mutually exclusive with `--html`)
`--viewport-width <px>`	1200	Viewport width in pixels used for layout before capture
`--viewport-height <px>`	800	Viewport height in pixels used for layout before capture
`--selector <css>`	—	Capture a specific element instead of the full rendered document
`--format`	`png`	Output format: `png`, `jpeg`, or `webp`
`--scale <n>`	2	Device pixel ratio (1–3)
`--output / -o <path>`	—	Download the generated image to this path

`agentgen pdf`

Render HTML to a PDF. Costs 2 tokens per page.

agentgen pdf (--html <string> | --file <path> | --pages <file1> <file2> …)
             [--page-size-source css|format]
             [--format A4|Letter|A3|Legal]
             [--landscape]
             [--print-background]
             [--no-optimize]
             [--margin-top <value>] [--margin-bottom <value>]
             [--margin-left <value>] [--margin-right <value>]
             [--output <path>]

Single-page — inline HTML:

agentgen pdf --html '<h1>Invoice #42</h1>' \
             --page-size-source css \
             --format A4 \
             --margin-top 20mm --margin-bottom 20mm \
             --output invoice.pdf

Single-page — from a file:

agentgen pdf --file ./invoice.html \
             --page-size-source css \
             --format A4 \
             --print-background \
             --no-optimize \
             --output invoice.pdf

Multi-page — one HTML file per page:

agentgen pdf --pages cover.html content.html appendix.html \
             --page-size-source css \
             --format A4 \
             --output report.pdf

Each file in --pages becomes one independent page. All pages share the same --format, --landscape, and margin settings.

Example output:

✓ PDF generated
  URL:           https://…/output.pdf
  Pages:         3 page(s)
  Tokens used:   6 token(s)
  Request ID:    req_def456
✓ Saved → report.pdf

Options:

Flag	Default	Description
`--html <string>`	—	Inline HTML for a single-page PDF
`--file <path>`	—	Read HTML from a file (single-page)
`--pages <files…>`	—	Multiple HTML files — one per page
`--page-size-source`	`css`	Prefer CSS `@page` size or fallback format
`--format`	`A4`	Fallback paper size: `A4`, `Letter`, `A3`, `Legal`
`--landscape`	off	Landscape orientation
`--print-background`	off	Render CSS backgrounds
`--no-optimize`	off	Disable PDF shrinking post-processing
`--margin-top <value>`	—	Top margin (CSS length, e.g. `20mm`)
`--margin-bottom <value>`	—	Bottom margin
`--margin-left <value>`	—	Left margin
`--margin-right <value>`	—	Right margin
`--output / -o <path>`	—	Download the generated PDF to this path

`agentgen upload`

Upload a local file to temporary storage. Free — no tokens consumed. Auto-deleted after 24 hours.

agentgen upload ./logo.png

Example output:

✓ File uploaded
  URL:           https://…/logo.png
  Key:           tmp/…/logo.png
  Size:          14832 bytes
  Expires at:    2026-03-03T10:00:00.000Z

Use the printed URL inside your HTML before calling image or pdf.

Global flags

Flag	Description
`--api-key <key>`	API key (or set `AGENTGEN_API_KEY` env var)
`--version`	Print version and exit
`--help`	Print help and exit

Token pricing

Operation	Cost
Generate image	1 token
Generate PDF (per page)	2 tokens
Upload temp file	Free
Check balance	Free

Purchase tokens at agent-gen.com.

agentgen-cli 0.1.3

agentgen · Rust SDK + CLI

Library — agentgen

Adding to your project

Quick start

Creating the client

generate_image — Costs 1 token

generate_pdf — Costs 2 tokens per page

Single-page PDF

Shorthand for uniform margins

Multi-page PDF

upload_temp — Free

get_balance — Free

Error handling

AgentGenError variants

Type reference

CLI — agentgen

Building

Authentication

agentgen balance

agentgen image

agentgen pdf

agentgen upload

Global flags

Token pricing

Library — `agentgen`

`generate_image` — Costs 1 token

`generate_pdf` — Costs 2 tokens per page

`upload_temp` — Free

`get_balance` — Free

`AgentGenError` variants

CLI — `agentgen`

`agentgen balance`

`agentgen image`

`agentgen pdf`

`agentgen upload`