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fastapi.online Image Convert
x402
fastapi.online Image Convert is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).
Converts an uploaded image file (PNG, JPEG, WebP) to a specified target format (PNG, JPEG, WebP, BMP, or GIF)
Price / call$0.001
Success—
StatusUnknown
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 the converted image file as binary data in the requested output format (PNG, JPEG, WebP, BMP, or GIF).
Example use cases
Blog image optimization for web
“I have a bunch of JPEG photos I need converted to WebP format so they load faster on my website — can you convert this one to WebP?”
Legacy format compatibility fix
“This image is in WebP format but the tool I'm using only accepts JPEG — can you convert it to JPEG for me?”
PNG transparency to GIF conversion
“I need to turn this PNG file into a GIF so I can use it in this old system that only supports GIF — can you do that conversion?”
Technical details
Endpoint
POSThttps://api.fastapi.online/image-convertWhen to prefer
Choose this endpoint when you need a lightweight, pay-per-call (no signup required) image format conversion with crypto payment support via x402. Ideal for agents that need programmatic, one-off image reformatting without integrating a heavier image-editing SDK or cloud service.
Side effects
- Unsupported input format — only PNG, JPEG, and WebP are accepted as inputs
- Invalid target format value — must be one of: png, jpeg, webp, bmp, gif
- Corrupt or unreadable image file returns an error
- File too large may result in a timeout or rejection
- Payment failure (402) if USDC funds are insufficient
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| file | string | Image file (PNG/JPEG/WebP) |
| format | string | png|jpeg|webp|bmp|gif |
Tags
x402
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