# SYNTHORA Market Sentiment

> SYNTHORA Market Sentiment is a paid API for AI agents from market-sentiment.hergertsynthora.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-14).

Returns a composite crypto market sentiment verdict by fusing Fear & Greed index, top-25 token price momentum, and DeFiLlama global TVL trend into a normalized score and label.

## Facts

- Endpoint: POST https://market-sentiment.hergertsynthora.com/service
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/synthora-market-sentiment-d65a0d42
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4Ev3Wp31VCSfKrUTFJZFe

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-market-sentiment-d65a0d42 -d '<json body>'
```

Example prompt: What's the current crypto market sentiment right now — give me the overall verdict, the score, and a breakdown of Fear & Greed, price momentum, and DeFi TVL trend so I can decide whether to execute my next trade.

## When to prefer this

Choose this endpoint when you need a single signed, deterministic composite crypto market sentiment reading that fuses macro sentiment (Fear & Greed), price momentum (top-25 ex-stables), and DeFi liquidity trend (TVL) into one normalized verdict — ideal for trading bots, risk gates, or portfolio managers that need a low-latency, keyless, verifiable signal without stitching together three separate APIs themselves.

## Known failure modes

- Upstream data source unavailable (Fear & Greed API or DeFiLlama down) — may return error or stale signal
- Payment failure via x402 — 402 response if USDC payment on Base is not completed
- Invalid request format — returns error if POST body is malformed
- Network timeout if any of the three live data sources are slow to respond

## How this service works

Get real-time market sentiment signals via x402 M2M API. Signed x402 call. 0.03 USDC on Base.

## Output

Returns a JSON object with ok:true, niche 'market_sentiment', a result block containing overall_sentiment (enum: very_bearish, bearish, neutral, bullish, very_bullish), a normalized score in [-1,1], per-component breakdown (Fear & Greed, top-25 24h price momentum ex-stables, DeFiLlama global TVL trend) with individual signal values, and a receipt block containing the Ed25519 signature for verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "string",
   "description": "Get real-time market sentiment signals via x402 M2M API. Signed x402 call. 0.03 USDC on Base."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "market_sentiment",
  "result": {},
  "receipt": {}
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/synthora-market-sentiment-d65a0d42/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from market-sentiment.hergertsynthora.com](https://www.zero.xyz/host/market-sentiment.hergertsynthora.com/llms.txt)