# windtrapdata.dev Crypto Market Data Feed

> windtrapdata.dev Crypto Market Data Feed is a paid API for AI agents from windtrapdata.dev, paid per call via x402, $0.005/call, status unknown (last checked 2026-10-20).

Returns Base blockchain RPC gas price, current block number, USDC circulating supply, and DeFiLlama chain TVL for a given crypto asset or chain.

## Facts

- Endpoint: POST https://windtrapdata.dev/v1/signals/market-feed?utm_source=zero.xyz
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/windtrapdata-dev-crypto-market-data-feed-071fc361
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Gmde1De5wxZWMUfLNFgIo

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 windtrapdata-dev-crypto-market-data-feed-071fc361 -d '<json body>'
```

Example prompt: What's the current gas price, block number, USDC supply, and DeFiLlama TVL for the BASE chain right now? Give me the results as JSON.

## When to prefer this

Choose this endpoint when you need a lightweight, low-cost ($0.005 USDC) snapshot of key Base chain on-chain metrics — gas price, block number, USDC supply, and DeFiLlama TVL — in a single call, especially for agent workflows that need crypto market telemetry without building separate RPC and DeFiLlama integrations.

## Known failure modes

- Invalid or unrecognized assetPair/chain symbol returns an error or empty result
- RPC or DeFiLlama upstream outage may cause stale or missing data
- Unsupported format enum value returns a validation error
- Payment of 0.005 USDC not fulfilled results in 402 rejection

## How this service works

Base blockchain RPC gas price, block number, USDC supply, and DeFiLlama chain TVL crypto market data feed ($0.005 USDC) — Factual on-chain and DeFi TVL telemetry.

## Output

Returns a structured response (JSON or Markdown) containing: current Base blockchain gas price, latest block number, USDC circulating supply, and DeFiLlama chain TVL for the requested asset or chain.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "format": {
   "enum": [
    "json",
    "markdown"
   ],
   "type": "string"
  },
  "assetPair": {
   "type": "string",
   "description": "Crypto asset symbol, chain name, or pair (e.g. 'ETH-USDC', 'BASE') for Base blockchain RPC gas price, block height, USDC supply, and DeFiLlama chain TVL market data."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/windtrapdata-dev-crypto-market-data-feed-071fc361/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from windtrapdata.dev](https://www.zero.xyz/host/windtrapdata.dev/llms.txt)