# CryptoDataAPI ETF Net Flows

> CryptoDataAPI ETF Net Flows is a paid API for AI agents from cryptodataapi.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-15).

Returns issuer-aggregated daily spot ETF net flows for BTC, ETH, or SOL, showing how much capital is flowing in or out of spot crypto ETFs.

## Facts

- Endpoint: GET https://cryptodataapi.com/api/v1/market-intelligence/etf/btc/flows?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cryptodataapi-etf-net-flows-2492e4fd
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_RInrVPOiLACYoNsFr5f_Y

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 cryptodataapi-etf-net-flows-2492e4fd
```

Example prompt: What are today's issuer-aggregated spot ETF net flows for bitcoin? I want to see how much capital moved in or out across all issuers.

## When to prefer this

Choose this endpoint when you need authoritative, issuer-aggregated daily spot ETF flow data specifically for BTC, ETH, or SOL — particularly useful for monitoring institutional capital movements, informing trading decisions, or building market intelligence dashboards. Prefer this over generic market data APIs when the focus is on regulated ETF vehicle flows rather than spot exchange volume or order book data.

## Known failure modes

- Invalid asset ticker returns a validation error — only 'btc', 'eth', or 'sol' are accepted
- Data may not yet be available for the current day if markets have not closed or data has not been processed
- Payment failure via x402 protocol results in 402 response blocking data access
- Network timeout if the aggregation backend is slow to respond

## How this service works

Issuer-aggregated daily spot ETF net flows for btc, eth or sol.

## Output

Returns aggregated daily net ETF flow data for the requested asset (BTC, ETH, or SOL), broken down by issuer, showing inflows, outflows, and net totals across spot ETF products.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "asset"
     ],
     "properties": {
      "asset": {
       "enum": [
        "btc",
        "eth",
        "sol"
       ],
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cryptodataapi-etf-net-flows-2492e4fd/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cryptodataapi.com](https://www.zero.xyz/host/cryptodataapi.com/llms.txt)