# CoinAnk US Ethereum ETF Inflow Data

> CoinAnk US Ethereum ETF Inflow Data is a paid API for AI agents from claw402.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Retrieves US Ethereum ETF inflow data including fund flows and related metrics

## Facts

- Endpoint: GET https://claw402.ai/api/v1/coinank/etf/us-eth-inflow
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/coinank-us-ethereum-etf-inflow-data-b2305f86
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_km3Ac0MqDflEinNdAKemR

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 coinank-us-ethereum-etf-inflow-data-b2305f86
```

Example prompt: What are the latest US Ethereum ETF inflow figures? I want to see which funds are seeing the most capital coming in right now.

## When to prefer this

Use this endpoint when you need real-time or recent US Ethereum ETF inflow data without API key registration, paying micro-amounts per call in USDC via x402 protocol. Prefer this over traditional financial data APIs when you want permissionless, wallet-based access to ETH ETF fund flow metrics.

## Known failure modes

- Payment not included or insufficient USDC — returns HTTP 402 requiring x402 payment
- Empty data array returned if no inflow data is available for the requested period
- Malformed request parameters result in non-zero error code
- Network timeout or upstream CoinAnk data unavailability
- Invalid wallet or payment verification failure

## How this service works

Backed by vergex.trade. Pay for any API with USDC. No API keys. No registration. Just a wallet.

## Output

Returns a JSON object with code 0 and a data array containing US Ethereum ETF inflow records, including fund-level flow amounts and related metrics for tracked Ethereum ETFs.

## Request schema (JSON Schema)

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

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "code": 0,
  "data": []
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/coinank-us-ethereum-etf-inflow-data-b2305f86/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from claw402.ai](https://www.zero.xyz/host/claw402.ai/llms.txt)