arena_get_chart

io.github.Schoasch/backtesting-arena · Verify this server

Renders one of the named platform series as a PNG line chart and returns it as an MCP image content block, plus a JSON meta block. The chart INHERITS the freedom of the data tool: it calls the same delivery layer, so it shows exactly the points the corresponding data tool would return for your tier — no finer resolution, no other source; the optional days parameter narrows the window under the same tier cap. The image itself carries n, the read date range, the gap count, a warning line when the window was capped, the mandatory source attribution where the series requires one, and the platform watermark — these survive a screenshot on purpose: a chart built from nine points says n=9 in the picture. For the underlying numbers call the matching data tool (e.g. series=kimchi_premium ↔ arena_get_kimchi_premium). Descriptive rendering, a descriptive rendering of the series. [Free tier · window depth follows your tier]