# BaseBuilder Stocks Trading Screener

> BaseBuilder Stocks Trading Screener is a paid API for AI agents from bb-stocks.vercel.app, paid per call via x402, $0.191373/call, status unknown (last checked 2026-09-14).

Screens stocks based on trading criteria and filters to identify matching securities

## Facts

- Endpoint: POST https://bb-stocks.vercel.app/api/trading/screener
- Price: $0.191373/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basebuilder-stocks-trading-screener-aa6aaf67
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WPCHv3dsI85qw47a4M0vs

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-stocks-trading-screener-aa6aaf67 -d '<json body>'
```

Example prompt: Screen for technology sector stocks with a market cap between $1B and $10B, price under $100, and daily volume above 500,000 shares — I'm looking for mid-cap tech names with strong trading activity.

## When to prefer this

Use this endpoint when you need to filter the universe of stocks down to a specific subset based on quantitative criteria like price, volume, market cap, sector, or technical indicators. Prefer this over a quote or lookup endpoint when you don't have a specific ticker in mind but want to discover candidates matching a trading thesis.

## Known failure modes

- Invalid or unsupported filter parameter returns 400 error
- No stocks match the given criteria returns empty result set
- Payment not provided or insufficient returns 402 Payment Required
- Server-side data unavailability returns 503
- Malformed request body returns 422 validation error

## How this service works

BaseBuilder Stocks API hub - 21 paid endpoints

## Output

A list of stocks matching the specified screening criteria, including ticker symbols and relevant metrics such as price, volume, market cap, sector, and other financial data points used in the filter.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder-stocks-trading-screener-aa6aaf67/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bb-stocks.vercel.app](https://www.zero.xyz/host/bb-stocks.vercel.app/llms.txt)