# GamePulse Trading Card Price Lookup

> GamePulse Trading Card Price Lookup is a paid API for AI agents from gamepulse-zeta.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Returns the current market value, price trend, and investment grade for a specific trading card

## Facts

- Endpoint: GET https://gamepulse-zeta.vercel.app/api/cards/price
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gamepulse-trading-card-price-lookup-8c8087ca
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_OQFKN4tzmGwf3C4AnwUsS

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability gamepulse-trading-card-price-lookup-8c8087ca
```

Example prompt: What's the current market value, price trend, and investment grade for a PSA 10 first edition Charizard from the Base Set?

## When to prefer this

Use this endpoint when you need quick, single-card price lookup with investment context — especially useful for card-collector or card-investor agents that need market value plus trend and grade signals in one call. Prefer this over the portfolio valuation endpoint when evaluating one card at a time rather than a whole collection.

## Known failure modes

- Card not found in database — returns 404 or empty result
- Ambiguous card name without set/edition details may return incorrect match
- Condition or grade not recognized — may default to ungraded value
- Rate limiting or payment failure for x402 micro-transaction — returns 402
- Stale pricing data if market moves rapidly between updates

## How this service works

Trading card pricing for card-collector and card-investor agents. Returns market value, trend, and investment grade for any trading card.

## Output

Returns the current market value (price) of the specified trading card, its recent price trend (rising, falling, stable), and an investment grade rating indicating the card's attractiveness as an investment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "card"
     ],
     "properties": {
      "card": {
       "type": "string",
       "description": "card"
      },
      "game": {
       "type": "string",
       "description": "game"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "errors": {
     "type": "object",
     "description": "Documented error responses, keyed by HTTP status code",
     "additionalProperties": {
      "type": "object",
      "required": [
       "description"
      ],
      "properties": {
       "example": {
        "type": "object"
       },
       "description": {
        "type": "string"
       }
      }
     }
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gamepulse-trading-card-price-lookup-8c8087ca/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gamepulse-zeta.vercel.app](https://www.zero.xyz/host/gamepulse-zeta.vercel.app/llms.txt)