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Card Comps — Sports Card Market Research
x402
Card Comps — Sports Card Market Research is a paid API for AI agents from eager-marvel-a2g2.here.now, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).
Returns sports card market comps (recent sale prices and medians) for a given player or card name
Price / call$0.01
Success—
StatusUnknown
How this service works
A pay per call service providing sports card market research data on the Base network.
Output
A JSON object containing the search query, a boolean confirming payment was processed, and a list of matching cards. Each match includes the card or player name, the most recent raw sale price (last_raw), and the median raw sale price (raw_median). Up to 25 results can be returned per query.
Example use cases
Pricing a card before selling
“I'm about to list a Wembanyama rookie card and want to know what similar raw cards have sold for recently — can you get me the comps so I know what to ask?”
Scouting cards to buy at a show
“I'm at a card show and someone wants $150 for a raw Patrick Mahomes card — can you pull up the current market comps so I can see if that's a fair price?”
Building a collection value report
“I'm tracking the value of my sports card collection — can you look up comps for Luka Doncic and give me the last raw sale and median price?”
Technical details
Endpoint
GEThttps://eager-marvel-a2g2.here.now/compsWhen to prefer
Use this endpoint when you need fast, pay-per-call sports card market comps without a subscription. It is ideal for agents that need on-demand price discovery for raw (ungraded) cards by player name. Prefer this over scraping auction sites or manual lookup when you need structured sale price data programmatically and want to pay only for what you use via USDC micropayments on Base.
Side effects
- No matches found for obscure or misspelled player names
- Payment not processed — endpoint returns 402 if USDC micropayment fails
- limit parameter out of range (must be 1–25)
- Missing required query parameter q returns a validation error
- Network timeout for real-time market data lookups
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| output | object |
Output
Schema · Response
{
"type": "json",
"example": {
"paid": true,
"query": "Ohtani",
"matches": [
{
"name": "Shohei Ohtani",
"last_raw": 701,
"raw_median": 831
}
]
}
}Tags
x402
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