# Screener Backtest API

Production: https://screenerbacktest.testsitout.com
Main screener UI: https://tradeview.testsitout.com

API-only Cloudflare Worker for historical backtests, charts, market data, and policy research digest.
Shares D1 (breakout_screener) and KV cache with the main screener.

## Core endpoints

GET /health
GET /api/backtest?symbols=MU&days=30
GET /api/backtest?symbols=MU&days=90&strategy=occ_v1
GET /api/backtest?symbols=MU&days=90&strategy=occ_strat_v1&chart=1
GET /api/chart.png?sym=MU&months=6
GET /api/atr?sym=NVDA&score=1
GET /api/watchlists/1
GET /api/research/policy?days=30
GET /api/research/digest?summary=1

## Local scripts

node scripts/run-backtest.mjs — offline Yahoo Finance OCC backtest reports

## Docs

/api/docs — HTML entry
/api/openapi — OpenAPI YAML