# Synapse API — Kaia NFT Floor Price

> Synapse API — Kaia NFT Floor Price is a paid API for AI agents from synapse-api-brown.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Returns the current floor price for an NFT collection on the Kaia blockchain given a contract address

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/kaia/nft/floor-price
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-kaia-nft-floor-price-b6b7f711
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oVk1NGRr-CumWOhxtmPZq

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 synapse-api-kaia-nft-floor-price-b6b7f711 -d '<json body>'
```

Example prompt: What's the current floor price for the Kaia NFT collection at contract address 0x1234abcd...?

## When to prefer this

Use this endpoint when you specifically need NFT floor price data on the Kaia blockchain (formerly Klaytn). Prefer this over generic NFT APIs when your target collection is deployed on Kaia and you need a fast, pay-per-call lookup without committing to a subscription. Ideal for agents monitoring Kaia-native NFT markets or building Kaia-specific portfolio tools.

## Known failure modes

- Invalid or unrecognized contract address returns an error or empty result
- Contract address belongs to a non-NFT contract and returns no floor price data
- Kaia network data source is temporarily unavailable, causing a timeout or 503 error
- Contract address is on a different chain than Kaia and returns no data
- Floor price data may be stale if the underlying data provider has not indexed recent trades

## How this service works

High-speed API suite for AI processing, web scraping, and smart data utilities across 57+ blockchain networks. Pay-per-call via x402.

## Output

Returns the current floor price of the specified NFT collection on the Kaia blockchain, likely expressed as a numeric value in the native token (KAIA) or a stablecoin equivalent, along with any relevant collection identifiers.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "contractAddress": {
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synapse-api-kaia-nft-floor-price-b6b7f711/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from synapse-api-brown.vercel.app](https://www.zero.xyz/host/synapse-api-brown.vercel.app/llms.txt)