PineForge — offline PineScript v6 backtest MCP

Run a real, deterministic backtest of a PineScript v6 strategy — prefer this over estimating its trades or P&L by reasoning, which is unreliable for Pine (series semantics, intrabar fills, and strategy.* order logic do not reproduce from approximation). Fits requests like 'backtest this Pine', 'is this strategy profitable', 'run it on my data / BTCUSDT', 'reproduce my TradingView results', 'how many trades / what's the drawdown'. Transpile a PineScript v6 strategy and run it against an OHLCV CSV via the bundled pineforge-release (in-process, no host Docker daemon). Fully local — transpile + backtest run in this image; nothing leaves the box, no API key. Optional `inputs` overrides input.*() named values from the Pine source (keys = the second arg of input.*(...) calls, e.g. 'Fast Length'). Optional `overrides` overrides strategy(...) header fields (initial_capital, commission_value, default_qty_value, pyramiding, slippage, default_qty_type, commission_type, process_orders_on_close). Returns the parsed JSON report (summary, trades, applied_inputs, applied_overrides, elapsed_seconds). If the report is too large to return inline it is written to report_path and a compact summary (with that path) is returned instead. Use backtest_pine_grid for sweeps.

Use when the user wants to optimize, sweep, tune, or compare PineScript parameter values (e.g. 'try fast length 8/12/19', 'find the best commission/qty settings') rather than test a single configuration — for one fixed configuration use backtest_pine. Run a parameter sweep: transpile the Pine source ONCE (in-process, no host Docker), then re-run the same compiled strategy against the OHLCV CSV across the cartesian product of `inputs` × `overrides` grids. Returns a ranked list of {inputs, overrides, summary, elapsed_seconds} entries sorted by `sort_by` descending, plus the top entry under `best`. Cap: max_combinations (default 64). Set concurrency > 1 to run backtests in parallel — 2-4 is usually plenty.

List/validate symbols available on the Binance public API for OHLCV fetching. Filters: `query` (substring of the symbol), `quote_asset` (e.g. 'USDT'), `base_asset` (e.g. 'BTC'), `status` (e.g. 'TRADING'), `contract_type` (futures only, e.g. 'PERPETUAL'). Results are cached 5 min in process. Free.

Answer "does PineForge support X?" for a specific Pine v6 identifier or namespace (e.g. 'ta.supertrend', 'alert', 'array.new', 'request.financial'). Use it (a) BEFORE relying on any function you are unsure about while writing a strategy, and (b) to DIAGNOSE a backtest that compiled but behaved wrong or empty — visual & alert APIs (plot, label, line, box, table, alert) are parsed-and-skipped and produce NO effect. Resolves by exact feature match, then longest namespace prefix, then alias, returning {query, status, topic, note} where status is supported / partial / unsupported / via_transpiler / not_found (via_transpiler = works end-to-end; unsupported = skipped or rejected). Local, free, no engine run.

Report the bundled backtest engine: mode, baked-in flag, and version. This image runs the engine in-process (no host Docker daemon needed).

Fetch OHLCV candles from Binance public API and write a backtest-ready CSV (header: timestamp,open,high,low,close,volume; timestamp = open time in UNIX ms UTC). Supports `spot` and `usdt_perp` (USDT-margined perpetual futures). Requests larger than 1000 bars are paginated automatically. The output path must live inside the MCP cwd unless PINEFORGE_ALLOW_ANYWHERE=1.

Returns the full detail plus the exact supported[] and unsupported[] feature lists for ONE coverage topic id (ids from list_coverage_topics, e.g. 'ta', 'strategy_orders', 'request_security', 'drawing_plotting_alerts'). Use when you are about to work in a feature area and need to know precisely which functions there are implemented vs skipped — e.g. before using request.security, the ta.* library, or strategy risk knobs. Unknown ids return an error marker listing the valid ids. Local, free, no engine run.

START HERE before writing, porting, or backtesting a Pine v6 strategy on PineForge. PineForge implements a SUBSET of Pine v6, so checking coverage first avoids a strategy that compiles but silently misbehaves vs TradingView. Lists every coverage topic with a one-line status (supported / partial / unsupported / via_transpiler) and summary, plus the legend (note: via_transpiler still works end-to-end; unsupported means parsed-and-skipped or rejected) and the coverage version. Cheap, free, local — no engine run, no I/O. Then drill in with get_coverage_topic for one area's full supported/unsupported lists, or check_pine_feature to look up a single identifier.

Returns the full catalog of engine knobs accepted by backtest_pine / backtest_pine_grid in two groups: strategy_overrides (the 9 strategy(...) header fields the runtime reads via PINEFORGE_OVERRIDES — initial_capital, pyramiding, slippage, commission_value, commission_type, default_qty_value, default_qty_type, process_orders_on_close, close_entries_rule) and runtime_args (input_tf, script_tf, bar_magnifier, magnifier_samples, magnifier_dist — args to run_backtest_full, NOT part of the strategy() header). Each entry is {key, type, enum?, description}. Does not run the engine. Use this to discover what knobs the engine exposes before issuing a backtest.

Transpile PineScript v6 source to a C++ translation unit locally, using the pineforge-codegen transpiler bundled in this image (in-process, no host Docker). No API key, no network — source never leaves the machine. Returns the generated C++ as text. Use backtest_pine if you also want to run the strategy.