# CollectablesPulse Compare Endpoint

> CollectablesPulse Compare Endpoint is a paid API for AI agents from collectablespulse.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-15).

Scores and compares two collectibles across 8 investment categories and declares a definitive winner for collector and investor decision-making.

## Facts

- Endpoint: GET https://collectablespulse.vercel.app/api/collect/compare
- 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/collectablespulse-compare-endpoint-98b271f0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Y_fd6yU8o3mM6MJyn09FN

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 collectablespulse-compare-endpoint-98b271f0
```

Example prompt: Compare a 1952 Topps Mickey Mantle PSA 5 against a 1986 Fleer Michael Jordan PSA 8 across all 8 investment categories and tell me which one is the better buy right now.

## When to prefer this

Use this endpoint when a user needs a decisive side-by-side investment comparison between exactly two collectibles across multiple scored dimensions — not just a single value lookup or trend signal. Ideal when the user is trying to decide which of two items to purchase or hold.

## Known failure modes

- Unrecognizable or ambiguous collectible names may return an error or low-confidence scores
- Missing required item parameters result in a 400-level error
- Very obscure or niche items may produce incomplete category scores
- Service unavailability returns 5xx with no comparison data

## How this service works

Global collectibles market intelligence API. AI-synthesized valuations for sports cards, coins, comics, vinyl records, Pokémon/MTG/TCGs, sneakers, watches, signed memorabilia, and trading cards. Real-time sold comparables, PSA/CGC/PCGS grade premiums, population reports, storage and grading guidance. Amazon storage supplies, professional grading service links, and eBay/Goldin marketplace links included. All endpoints support any language via ?lang=. Pricing: $0.08–$0.20 USDC/call via x402 micropayment.

## Output

Returns scores for both collectibles across 8 investment categories (e.g. liquidity, population scarcity, trend, condition premium, etc.) along with a definitive named winner and rationale for which collectible represents the stronger investment.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "item1",
  "item2"
 ],
 "properties": {
  "lang": {
   "type": "string",
   "description": "lang"
  },
  "item1": {
   "type": "string",
   "description": "item1"
  },
  "item2": {
   "type": "string",
   "description": "item2"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/collectablespulse-compare-endpoint-98b271f0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from collectablespulse.vercel.app](https://www.zero.xyz/host/collectablespulse.vercel.app/llms.txt)