# SYNTHORA News Sentiment Oracle

> SYNTHORA News Sentiment Oracle is a paid API for AI agents from sentiment.hergertsynthora.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Scores real-time news sentiment for any crypto asset, macro topic, or financial keyword using the GDELT 2.0 Timeline Tone API, returning a tone score and directional signal.

## Facts

- Endpoint: POST https://sentiment.hergertsynthora.com/service
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-news-sentiment-oracle-6cd8f950
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KCpuzkoc2rgYW264OCICv

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 synthora-news-sentiment-oracle-6cd8f950 -d '<json body>'
```

Example prompt: What's the current news sentiment score for Bitcoin — is global media coverage leaning positive or negative right now?

## When to prefer this

Choose this endpoint when you need real-time, globally-sourced news sentiment for financial assets or macro keywords, especially crypto assets, and want a quantitative tone score backed by the GDELT 2.0 dataset rather than a simple headline count or social media signal.

## Known failure modes

- Empty or ambiguous input string may return low-confidence or null tone scores
- GDELT API upstream outages may cause delayed or failed responses
- Very niche or obscure keywords with minimal global news coverage may return unreliable scores
- Rate limiting or payment failure may result in 402 or rejection responses
- Non-English or highly localized topics may have skewed sentiment due to GDELT corpus composition

## How this service works

Real-time news sentiment scoring via GDELT 2.0 Timeline Tone API. Analyze sentiment for any crypto asset, macro topic, or financial keyword across global news. Returns tone score and directional signal.

## Output

Returns a JSON object with an ok boolean, a niche string indicating the service context, and a result payload containing a numeric tone score derived from GDELT 2.0 and a directional sentiment signal (e.g. bullish/bearish or positive/negative) for the queried keyword or asset.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "Topic or asset, e.g. bitcoin"
  },
  "timespan": {
   "enum": [
    "1h",
    "6h",
    "12h",
    "24h",
    "48h",
    "72h"
   ],
   "type": "string",
   "default": "6h"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "sentiment",
  "result": {
   "query": "bitcoin",
   "signal": "neutral",
   "headlines": [],
   "sentiment": "neutral",
   "tone_score": 0,
   "tone_trend": "stable"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-news-sentiment-oracle-6cd8f950/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sentiment.hergertsynthora.com](https://www.zero.xyz/host/sentiment.hergertsynthora.com/llms.txt)