# BaseBuilder Sentiment Token Analysis

> BaseBuilder Sentiment Token Analysis is a paid API for AI agents from bb-sentiment.vercel.app, paid per call via x402, $0.172427/call, status unknown (last checked 2026-10-29).

Performs sentiment analysis on a cryptocurrency token using the BaseBuilder Sentiment API

## Facts

- Endpoint: POST https://bb-sentiment.vercel.app/api/sentiment/token?utm_source=zero.xyz
- Price: $0.172427/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-29
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basebuilder-sentiment-token-analysis-036c2130
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_suJ0L25LLGUJ-wrhA8lvN

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 basebuilder-sentiment-token-analysis-036c2130 -d '<json body>'
```

Example prompt: Can you run a sentiment analysis on the $BASE token and tell me whether the current market feeling is positive, negative, or neutral, along with a confidence score?

## When to prefer this

Use this endpoint when you need structured sentiment analysis specifically for a cryptocurrency token, especially within a paid, on-chain micropayment (x402) workflow. Prefer this over generic NLP sentiment APIs when your input is a token ticker or asset identifier rather than raw text, and you want crypto-native market or social sentiment rather than text sentiment.

## Known failure modes

- Unknown or unsupported token identifier returns an error or empty result
- Payment not processed results in 402 Payment Required response
- Invalid request body format returns 400 Bad Request
- Token with insufficient data may return low-confidence or null sentiment
- Service unavailable returns 500 or timeout

## How this service works

BaseBuilder Sentiment API hub - 14 paid endpoints

## Output

Returns a sentiment classification (positive, negative, or neutral) and associated confidence or score metrics for the specified cryptocurrency token, reflecting current market or social sentiment.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder-sentiment-token-analysis-036c2130/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bb-sentiment.vercel.app](https://www.zero.xyz/host/bb-sentiment.vercel.app/llms.txt)