# BaseBuilder Stocks Trading Screener

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

Screens stocks based on trading criteria to surface matching equities from the market

## Facts

- Endpoint: POST https://bbx-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-32130f28
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_CjG7NBLZKJQFR_2m26Qk1

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-32130f28 -d '<json body>'
```

Example prompt: Screen the stock market for mid-cap tech stocks with a price between $20 and $100, daily volume above 500,000 shares, and a P/E ratio under 25 — show me the top matches ranked by volume.

## When to prefer this

Choose this endpoint when you need to programmatically filter the equity market using multiple quantitative criteria simultaneously, especially within an automated agent workflow that needs to discover trading candidates without manual browsing. Best suited when you need reproducible, criteria-driven stock discovery rather than ad hoc lookups of a single known ticker.

## Known failure modes

- Invalid or unsupported filter parameters return an error
- Too-restrictive criteria yield zero results
- Payment failure due to insufficient USDC balance blocks access
- Malformed POST body returns 400 bad request
- Rate limiting or quota exhaustion returns 429 or 402
- Data may be delayed rather than real-time, leading to stale results

## How this service works

BaseBuilder Stocks API hub - 21 paid endpoints

## Output

Returns a list of stocks that match the specified screening criteria, likely including ticker symbols, key financial metrics (price, volume, P/E ratio, market cap, etc.), and ranking or scoring data used to surface the best matches.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder-stocks-trading-screener-32130f28/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bbx-stocks.vercel.app](https://www.zero.xyz/host/bbx-stocks.vercel.app/llms.txt)