# Crypto Sector Momentum & Narrative Rotation Signal

> Crypto Sector Momentum & Narrative Rotation Signal is a paid API for AI agents from api.x402node.dev, paid per call via x402, $0.008/call, status unknown (last checked 2026-09-15).

Returns ranked crypto sectors/narratives sorted by 24-hour market cap momentum, showing capital flow direction and top coins per sector as an allocation signal.

## Facts

- Endpoint: GET https://api.x402node.dev/market/sector-momentum
- Price: $0.008/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/crypto-sector-momentum-narrative-rotation-signal-8e9abe16
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_JF_bYbYHCTDqe1R-E97p-

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-momentum-narrative-rotation-signal-8e9abe16
```

Example prompt: Which crypto sectors and narratives are seeing the most capital inflows right now, and what are the top coins in each of the hottest sectors?

## When to prefer this

Use this endpoint when you need a pre-computed, ranked view of which crypto narratives or sectors are gaining or losing capital momentum over 24 hours, rather than raw price or market cap data. Prefer this over raw ticker endpoints when you want an allocation signal or thematic overview without building your own sector classification logic.

## Known failure modes

- Upstream market data unavailable, returning stale or empty results
- Sector classification model may misclassify emerging or multi-narrative tokens
- Momentum scores reflect 24h window only and may lag very recent price moves
- Payment of 0.008 USDC required; missing or failed x402 payment returns 402 error

## How this service works

Crypto sector rotation ranked by 24h market cap momentum - which narratives/sectors capital is flowing into vs out of, with top coins per sector - a computed allocation signal for agents, not raw data. sector rotation, crypto narratives, sector momentum, narrative rotation, hot sectors, capital rotation Accepts payment on Base or Solana — either network works.

## Output

A ranked list of crypto sectors/narratives ordered by 24-hour market cap momentum, each entry showing the sector name, momentum direction (inflow or outflow), momentum score, and top coins within that sector — delivered as a computed allocation signal ready for agent decision-making.

## Example request

```json
{}
```

## 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"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "top": {
       "type": "string",
       "description": "Top N sectors each direction, default 10, max 30"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/crypto-sector-momentum-narrative-rotation-signal-8e9abe16/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.x402node.dev](https://www.zero.xyz/host/api.x402node.dev/llms.txt)