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fastapi.online — Image Border Adder
x402
fastapi.online — Image Border Adder is a paid API for AI agents from api.fastapi.online, paid per call via x402, $0.001/call, status down (last checked 2026-09-15).
Adds a colored border of specified width to an uploaded image (PNG/JPEG/WebP)
Price / call$0.001
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
A modified image file returned with the specified color border applied uniformly around all edges at the requested pixel width.
Example use cases
Social media photo framing
“Add a white border 15 pixels wide around this JPEG photo so it looks clean and framed when I post it to Instagram.”
Product image border for e-commerce
“Put a black border, 5 pixels wide, around this product PNG before I upload it to my store listing.”
Presentation slide image decoration
“Can you add a navy blue border that's 8 pixels wide to this WebP screenshot so it stands out on my presentation slide?”
Technical details
Endpoint
POSThttps://api.fastapi.online/image-borderWhen to prefer
Use this endpoint when you need a quick, cheap ($0.001 USDC), no-signup image border addition with no dependency on a heavy image editing SDK or service. Ideal for automated pipelines that add consistent framing to batches of images, especially when paying per-call with crypto is acceptable.
Side effects
- Unsupported file format (not PNG/JPEG/WebP) returns an error
- Invalid or unparseable color value causes a processing error
- Width value is non-numeric or out of range
- Image file is too large or corrupted
- Payment not completed (402 response if x402 payment missing)
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| file | string | Image file (PNG/JPEG/WebP) |
| color | string | |
| width | string |
Tags
x402
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