# PennyLogo — Full Reference for AI Agents

> PennyLogo is an AI emoji and logo generator operated by OlympusML. This document is the long-form, agent-friendly reference. For a short index, see [/llms.txt](https://pennylogo.com/llms.txt). For machine-readable API discovery, see [/.well-known/api-catalog](https://pennylogo.com/.well-known/api-catalog).

## What PennyLogo does

PennyLogo converts a photo or a short text prompt into one of three asset types:

1. **Emojis** — cartoon-style images optimized for chat, stickers, and reactions. Transparent background by default.
2. **Logos** — brand marks for startups and small businesses. SVG-ready, scalable, commercially licensed.
3. **Custom coasters** — physical printed coasters using a generated emoji. Shipped worldwide.

The product is web-based at https://pennylogo.com. There is no installable app.

## Who it is for

- Creators and streamers who want personal emojis and stickers.
- Small businesses and founders who need a logo without hiring a designer.
- Marketing teams that need fast, on-brand visuals for campaigns and decks.
- Developers integrating a generated-asset feature via the public read API.

## Pricing model

PennyLogo uses a **credit-based** model. One credit = one generation. Credits are sold in packages — see [/pricing](https://pennylogo.com/pricing) for current tiers. There is no recurring subscription. Refer-a-friend bonuses exist via [/refer](https://pennylogo.com/refer).

## Output formats and rights

- PNG with transparent background (default for emojis).
- SVG vector format (default for logos; available on emojis where supported).
- Output is **licensed for full commercial use** by the generating account. No attribution required.
- Restrictions are listed at [/image-policy](https://pennylogo.com/image-policy): no impersonation of real people without consent, no protected IP, no disallowed content categories.

## Public API

PennyLogo exposes a small, read-only public API for fetching generated assets by ID. The API is intended for agent and integration use. Auth is not required for public assets.

Base URL: `https://pennylogo.com`

### GET /api/public/logo/{id}
Fetches a public logo or emoji by ID.

Query parameters:
- `action` — `view` (default) or `download`. `download` sets a Content-Disposition attachment header.
- `format` — `original` (default) or `svg`. Returns the SVG variant if available.
- `thumb` — `1` / `true` to return a thumbnail size variant.

Returns the image bytes. May apply a watermark depending on the owning account's purchase history. Rate limit headers (`X-RateLimit-*`) are included on every response.

### GET /api/public/story/{id}
Fetches the metadata "story" record for a public generation — title, prompt summary, related asset IDs.

Returns `application/json`.

### Discovery
- API catalog (RFC 9727, application/linkset+json): https://pennylogo.com/.well-known/api-catalog
- Human-readable docs: https://pennylogo.com/docs/api

## How a typical user journey works

1. User lands on the homepage.
2. User chooses a flow: photo upload, text prompt, or logo brief.
3. User generates a preview (free trial) or spends credits for full-resolution output.
4. User can download (PNG/SVG), share to the public gallery, or order it printed on a coaster.

## Brand and press

Logos and brand assets are at [/brand](https://pennylogo.com/brand). The operator is OlympusML (https://olympusml.com), contact: contact@olympusml.com.

## Privacy

Uploaded photos are stored only as needed to deliver the generation and the user's gallery. Users can delete their uploads from their profile. Full policy at [/privacy](https://pennylogo.com/privacy).

## Agent / discovery endpoints

- Robots: https://pennylogo.com/robots.txt
- Sitemap: https://pennylogo.com/sitemap.xml
- Content summary (this document): https://pennylogo.com/llms-full.txt
- Short index: https://pennylogo.com/llms.txt
- AI content summary: https://pennylogo.com/ai-content.txt
- API catalog: https://pennylogo.com/.well-known/api-catalog
- MCP server card: https://pennylogo.com/.well-known/mcp/server-card.json
- Agent skills index: https://pennylogo.com/.well-known/agent-skills/index.json