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fastapi.online Icon Generator
x402
fastapi.online Icon Generator is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.012/call, status down (last checked 2026-09-15).
Generates a custom icon image from a text subject description and optional seed for reproducibility
Price / call$0.012
Success—
StatusDown
How this service works
Chat, embeddings, OCR, speech-to-text, image editing, image understanding (captioning/Q&A), text-to-speech, translation, writing tools, classification tools, developer tools, local utilities, format/checksum validators, encoding & crypto utilities, date/time calculators, geo/coordinate math, math & finance calculators, novelty tools, and business/social writing generators — 179 endpoints in all, across multiple specialized self-hosted models. Pay per call with crypto — no signup — or get an API key.
Output
Returns a generated icon image (binary image data or URL) depicting the requested subject, optionally reproducible via the provided seed integer.
Example use cases
App UI icon creation
“Create an icon showing a magnifying glass for my search button in the app, use seed 7 so I can reproduce it later.”
Website favicon generation
“Generate an icon of a lightning bolt for my website's favicon, with seed 100 for consistency.”
Branding asset for startup
“Make me an icon that depicts a rocket ship for my startup's landing page, use seed 55.”
Technical details
Endpoint
POSThttps://api.fastapi.online/generate-iconWhen to prefer
Choose this endpoint when you need a quick, AI-generated icon from a text description without requiring a full image generation pipeline or design tool. It is ideal for lightweight UI assets, app icons, or favicon generation where reproducibility via seed is useful. Prefer this over full image generation endpoints when you specifically need a small, icon-style graphic rather than a detailed illustration or photo.
Side effects
- Empty or missing subject field returns validation error
- Subject exceeds 300 character limit causing rejection
- Invalid seed type (non-integer) causes schema validation failure
- Payment not provided or insufficient USDC results in HTTP 402
- Model inference timeout on complex subjects
- Returned image may not perfectly match abstract or ambiguous subjects
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| seed | integer | |
| subject | string | what the icon depicts |
Tags
x402
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