# Zapper NFT Collection Metadata

> Zapper NFT Collection Metadata is a paid API for AI agents from public.zapper.xyz, paid per call via x402, $0.001125/call, status down (last checked 2026-10-12).

Fetches NFT collection data including market stats (floor price, market cap), holder info, recent events, and a sample of NFTs for one or more collections.

## Facts

- Endpoint: POST https://public.zapper.xyz/x402/nft-collection-metadata?utm_source=zero.xyz
- Price: $0.001125/call
- Payment: x402
- Status: down
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/public-zapper-xyz-97a6ba4a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kYDHY7sgzqSSmI5M8HlGv

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 public-zapper-xyz-97a6ba4a -d '<json body>'
```

Example prompt: Can you pull up the market stats for the Pudgy Penguins NFT collection — floor price, market cap, number of holders, and some recent events? The contract address is 0xBd3531dA5CF5857e7CfAA92426877b022e612cf8 on Ethereum mainnet (chainId 1).

## When to prefer this

Use this endpoint when you need comprehensive NFT collection-level data — market stats, holder distribution, floor price, and recent activity — for one or more collections identified by contract address and chain. Prefer this over token endpoints when the subject is an NFT collection rather than a fungible token, and when you need combined market + social + holder data in a single call.

## Known failure modes

- Invalid or unknown collection address returns empty or null data
- Unsupported chainId returns error or empty result
- Malformed collections array causes validation error
- Rate limiting or payment failure returns 402 or 429 error
- Network congestion may cause slow or incomplete responses

## How this service works

Enterprise grade onchain data across 60+ chains - token prices, NFTs, portfolios, onchain search, Farcaster and more.

## Output

Returns an array of NFT collection objects, each including the collection name, network, market cap, floor price in USD, holder count, top holders, paginated NFT samples, and recent on-chain events for the collection.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "collections": {
   "type": "array",
   "items": {
    "type": "object",
    "properties": {
     "address": {
      "type": "string",
      "description": "Collection contract address"
     },
     "chainId": {
      "type": "integer",
      "description": "Network Chain ID"
     }
    }
   },
   "description": "Array of collection inputs containing address and chainId"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/public-zapper-xyz-97a6ba4a/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from public.zapper.xyz](https://www.zero.xyz/host/public.zapper.xyz/llms.txt)