ChenglanAI Data API

Endpoints (GET)

• /api/v1/list — filter and sort symbols by market, trend, stage, regime
• /api/v1/symbol/{sym} — state, key levels, last change, macro sensitivity
• /api/v1/daily?lang=en, /api/v1/weekly?lang=en — daily and weekly market-cycle reports by market (key state changes, same-day events, levels), Markdown available
• /api/v1/changes — state changes after each close
• /api/v1/chart/{sym} — daily bars, weekly levels, trend/stage series and all marks
• /api/v1/ext/{sym} — earnings, option walls and option structure
• /api/v1/macro/dashboard, /api/v1/macro/series/{key}, /api/v1/calendar
• /api/v1/news/{sym}, /api/v1/sec/{sym}, /api/v1/short/{sym}

Full reference: API docs (Markdown and OpenAPI 3.0 JSON downloads). Field keys are short ASCII codes; text values such as symbol names and state labels are in Chinese.

Use it from AI assistants (MCP / Skill)

1. Generate an API key in the app's user center (you can also try without a key, rate-limited by IP).
2. Add a remote MCP server in Claude, ChatGPT, Codex or Cursor: URL https://app.chenglanai.com/mcp, Streamable HTTP, header Authorization: Bearer YOUR_KEY.
3. Optional: install SKILL.md into ~/.claude/skills/chenglanai/ so the assistant knows which tool answers which question.

claude mcp add --transport http chenglanai https://app.chenglanai.com/mcp --header "Authorization: Bearer $CHENGLAN_API_KEY"

All client configs and the tool list: API docs · AI access. Results describe price-cycle states only and are not investment advice.

Auth and quota

• Header Authorization: Bearer cl_live_xxx (or X-API-Key).
• Default 5,000 calls per key per day, reset at 00:00 Beijing time; see X-RateLimit-Remaining.
• Published after each market close; check /api/v1/meta for generated and asof.

curl -H "Authorization: Bearer cl_live_xxx" \
  "https://app.chenglanai.com/api/v1/list?mkt=US&bt=1&sort=chg20&limit=50"