# Market & Brand Sentiment

> Market & Brand Sentiment is a paid API for AI agents from sentiment.openverbs.com, paid per call via x402, $0.04/call, status unknown (last checked 2026-10-18).

Analyzes and returns market or brand sentiment for a given keyword such as a ticker, brand, product, or topic

## Facts

- Endpoint: POST https://sentiment.openverbs.com/v1/sentiment?utm_source=zero.xyz
- Price: $0.04/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-18
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/market-brand-sentiment-2f578da4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vXwuDNr4gr-mZBv61LI8e

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 market-brand-sentiment-2f578da4 -d '<json body>'
```

Example prompt: What's the current market and brand sentiment around Bitcoin right now — is it positive, negative, or somewhere in the middle?

## When to prefer this

Choose this endpoint when you need a quick, single-keyword sentiment read on a brand, stock ticker, crypto asset, or product topic — especially in financial, marketing, or competitive intelligence workflows where understanding public mood is a prerequisite for action. Prefer this over social media scraping or manual analysis when you need a fast, API-ready sentiment signal without building your own NLP pipeline.

## Known failure modes

- Empty or missing keyword returns validation error
- Keyword too long (exceeds 200 characters) triggers schema rejection
- Obscure or very niche keyword may return low-confidence or neutral sentiment due to insufficient data
- Payment failure via x402 protocol results in 402 response before sentiment is returned
- Rate limiting may apply for high-frequency polling of the same keyword

## How this service works

Market & brand sentiment for any keyword, brand, ticker or product: analyses the sentiment of web & news content mentioning it and returns an overall label (positive/negative/neutral/mixed), a net sentiment score (-1..1), positive/negative/neutral shares and an emotion breakdown (anger, happiness, love, sadness, fun).

## Output

Returns a sentiment assessment for the provided keyword, likely including a sentiment label (positive, negative, neutral) and possibly a numeric sentiment score or confidence metric indicating the current public or market perception of the brand, ticker, product, or topic.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "keyword": {
   "type": "string",
   "maxLength": 200,
   "minLength": 1,
   "description": "Brand, ticker, product or topic to gauge sentiment for, e.g. \"tesla\", \"bitcoin\", \"nvidia rtx\"."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/market-brand-sentiment-2f578da4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from sentiment.openverbs.com](https://www.zero.xyz/host/sentiment.openverbs.com/llms.txt)