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The Undesirables Oracle — TCG Card Grade Upload
x402
The Undesirables Oracle — TCG Card Grade Upload is a paid API for AI agents from oracle.the-undesirables.com, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).
Grades a physical trading card image using AI vision, returning a numeric grade and detailed condition report with privacy guarantees
Price / call$0.1
Success—
StatusUnknown
How this service works
TCG card grading, conformal risk forecasting, and market intelligence. Powered by x402 micropayments — USDC on Base, USDC on Solana, or USDG on Robinhood Chain; the 402 offers all three and the agent picks a leg. Free tools require no payment. Paid tools return HTTP 402 — sign a payment and retry with the payment proof header.
Output
A JSON object containing an overall numeric grade (0–10 scale), a detailed condition report, grading status, and a privacy confirmation stating the image was not stored, was deleted after grading, and had EXIF data stripped.
Example use cases
Pre-sale condition check for eBay listing
“I'm about to list this holographic Charizard on eBay — can you upload this photo and grade it so I know what condition to advertise and what price to set?”
Deciding whether to send to PSA
“I've got a First Edition Base Set Blastoise I'm thinking of sending to PSA for professional grading — can you grade this card image first so I know if it's worth the submission fee?”
Bulk collection triage before trading
“I'm trading at a card show this weekend and I need to know the grade on this Magic: The Gathering Black Lotus I just pulled — can you analyze this card photo and give me a numeric grade?”
Technical details
Endpoint
POSThttps://oracle.the-undesirables.com/api/v1/grade/uploadWhen to prefer
Choose this endpoint when you need AI-powered numeric grading of a physical trading card from an uploaded image, especially when privacy is important (image deleted post-grading, EXIF stripped). Prefer this over batch URL-based triage endpoints when you have a local image file to upload rather than a publicly accessible image URL. Best for single-card deep assessment before selling, trading, or deciding on professional grading submission.
Side effects
- Image too blurry or low-resolution to assess — grader returns an error or low-confidence result
- Unsupported card type or non-TCG image submitted — may return unexpected results
- HTTP 402 returned if payment header is missing or malformed — must sign USDC/USDG micropayment and retry
- Network timeout during image upload for large files
- Payment on wrong chain or insufficient amount — 402 not resolved
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| file | string | Card image: JPEG, PNG, HEIC or HEIF |
| game | string | TCG game for grading context (default: Pokemon) |
| image_base64 | string | Base64 image bytes — alternative to `file` |
Output
Schema · Response
{
"type": "json",
"example": {
"report": {
"overall_grade": 8.5
},
"status": "ok",
"privacy": "image not stored; deleted after grading; EXIF stripped"
}
}Tags
x402
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