# Crypto Sector Index - Members

> Crypto Sector Index - Members is a paid API for AI agents from www.blockchainiq.co, paid per call via x402, $0.25/call, status unknown (last checked 2026-10-13).

Returns the full list of member coins for a named crypto sector index, with live USD price, market cap, rank, 24h volume, and 24h/7d/30d percentage changes for each constituent.

## Facts

- Endpoint: GET https://www.blockchainiq.co/api/x402/v1/indices/:slug?utm_source=zero.xyz
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-sector-index-members-86e3bd22
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_F4gHQRF1ANKR9L0nwbhTG

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 crypto-sector-index-members-86e3bd22
```

Example prompt: Pull up all the coins in the DeFi sector index on Blockchain IQ — I want to see live prices, market caps, and how each one has performed over the last 7 and 30 days.

## When to prefer this

Use this endpoint when you need to analyze a specific crypto sector or narrative as a basket — retrieving all constituent coins with live market data in one call. Prefer it over individual coin lookups when sector-level comparison or performance tracking is the goal. Best when the sector slug is already known (e.g. from the companion list endpoint).

## Known failure modes

- Invalid or unknown slug returns a 404 or empty result
- Slug not found if index has been renamed or removed
- Live price data may be delayed or unavailable during market data outages
- $0.25 USDC payment required per call; missing payment returns 402

## How this service works

One analyst-curated crypto sector index by slug: its full list of member coins with live USD price, market cap, rank, 24h volume and 24h/7d/30d change for every constituent. Use to analyse a crypto sector or narrative as a basket, compare its members or track sector performance. JSON, no API key. $0.25 per call. Blockchain IQ.

## Output

A JSON array of all constituent coins in the requested sector index, each with live USD price, market cap, global rank, 24h trading volume, and percentage price changes over 24 hours, 7 days, and 30 days.

## 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"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object",
     "required": [
      "slug"
     ],
     "properties": {
      "slug": {
       "type": "string",
       "description": "Index slug from /api/x402/v1/indices"
      }
     }
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "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/crypto-sector-index-members-86e3bd22/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from www.blockchainiq.co](https://www.zero.xyz/host/www.blockchainiq.co/llms.txt)