# SentimentAlpha Narrative Alpha — Real-Time X/Twitter Sentiment for Trading

> SentimentAlpha Narrative Alpha — Real-Time X/Twitter Sentiment for Trading is a paid API for AI agents from sentimentalpha.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Analyzes real-time X/Twitter sentiment via Grok API to surface narrative velocity, trend shifts, and contrarian signals for a given ticker or market event

## Facts

- Endpoint: POST https://sentimentalpha.ai/v1/narrative-alpha
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sentimentalpha-narrative-alpha-real-time-x-twitter-sentiment-for-db8b76f4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_McvszSms58qhZCKLp_mW1

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 sentimentalpha-narrative-alpha-real-time-x-twitter-sentiment-for-db8b76f4 -d '<json body>'
```

Example prompt: What's the current narrative momentum on X for $TSLA — are there any contrarian signals or trend shifts building ahead of today's earnings event? Use a 24-hour time window.

## When to prefer this

Choose this endpoint when an AI trading agent needs real-time social sentiment and narrative intelligence from X/Twitter for a specific ticker or market event, especially to detect early trend shifts or contrarian signals before they are reflected in price. Prefer over general-purpose sentiment APIs when financial social arbitrage signals are the primary goal and micropayment-per-call pricing is acceptable.

## Known failure modes

- Invalid or unrecognized ticker symbol returns empty or low-confidence results
- Overly broad free-form queries may return noisy or unfocused sentiment signals
- time_window parameter not specified may default to an undocumented interval
- Rate limiting or micropayment failure via x402/Base USDC may block the request
- Grok API upstream outage could cause degraded or unavailable responses
- Very niche or low-volume tickers may have insufficient X data for meaningful signal

## How this service works

SentimentAlpha.ai delivers real-time X/Twitter sentiment intelligence via Grok API. Automate Social Arbitrage: spot cultural trend shifts, narrative velocity, and contrarian signals BEFORE Wall Street. The affordable alternative to TickerTrends, QuiverQuant, and RavenPack for AI agents. x402 micropayments on Base USDC.

## Output

Returns real-time sentiment intelligence derived from X/Twitter data via Grok API, including narrative velocity scores, cultural trend shift indicators, and contrarian signals relevant to the queried ticker or market event. Designed to surface social arbitrage opportunities before they are priced in.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "event": {
   "type": "string",
   "description": "Market event"
  },
  "query": {
   "type": "string",
   "description": "Free-form query"
  },
  "ticker": {
   "type": "string",
   "description": "Ticker symbol"
  },
  "time_window": {
   "enum": [
    "1h",
    "4h",
    "24h",
    "7d"
   ],
   "type": "string"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sentimentalpha-narrative-alpha-real-time-x-twitter-sentiment-for-db8b76f4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sentimentalpha.ai](https://www.zero.xyz/host/sentimentalpha.ai/llms.txt)