# Synapse API — Monad NFT Floor Price

> Synapse API — Monad 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 2026-10-14).

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

## Facts

- Endpoint: POST https://synapse-api-brown.vercel.app/api/monad/nft/floor-price?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synapse-api-monad-nft-floor-price-37c76fbb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_El7MxZuaQlMJQ_h0rLfQr

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-monad-nft-floor-price-37c76fbb -d '<json body>'
```

Example prompt: What's the current floor price for the Monad NFT collection at contract address 0xAbCd1234...? I want to know how much it costs to buy in.

## When to prefer this

Choose this endpoint when you specifically need NFT floor price data on the Monad blockchain. It is priced at $0.01 USDC per call via x402 pay-per-use, making it cost-effective for spot lookups. Prefer this over generic multi-chain NFT APIs when Monad is your target network, and over manual marketplace scraping when you need programmatic, structured pricing data.

## Known failure modes

- Invalid or malformed contract address returns an error
- Contract address not found on Monad network returns null or 404-equivalent
- No active listings may result in no floor price data
- Network or RPC outage causing timeout or 503
- Monad testnet vs mainnet mismatch may yield incorrect results

## 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 Monad blockchain, typically including price in native token and/or USD equivalent, sourced from live marketplace data.

## 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-monad-nft-floor-price-37c76fbb/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)