Basis

not graded

Crypto market data, 200 indicators, order flow and a chart link. No account, no API key.

About this server

Basis provides crypto market data, 200 indicators, order flow and a chart link with no account and no API key. It uses streamable-http transport. Tools include catalog_search, catalog_describe, crypto_quant_guide, market_candles, market_relationships, market_dominance, market_derivatives and hyperliquid_whale_read.

Categories: market-data, crypto

Remote URL: https://www.basischarts.com/api/mcp

Repository:

Transport: streamable-http

First seen: 2026-10-17T23:06:01 Last seen: 2026-10-20T08:40:07

30-day uptime: 1.0%

Verified data

Not yet checked — owners can claim this listing to enable price-accuracy checks

Tools

Name	Description	Input keys
catalog_search	Search what Basis can do: indicators, formula functions, built-in strategies, the extra series available inside strategy expressions, and the drawing tools with the number of anchors each one takes. Exact counts are in the system prompt catalogue. Use this before assuming something does or does not	kind, limit, query
catalog_describe	Full detail for one catalogue entry: an indicator's parameters and defaults, a formula function's signature, or a strategy's parameters. Call this before passing parameters you have not seen.	id, kind
crypto_quant_guide	Domain knowledge for a crypto analysis: the constraints of the topic, the Basis tool chain, and — the part worth calling for — findings Basis has actually measured, each with its sample and verdict, plus the conventional readings it has NOT measured, marked as such. Call it before analysing a chart	topic
market_candles	Load price history and return a handle to it, plus a summary. The bars themselves are deliberately not returned — pass the handle to the compute tools instead. Defaults to whatever is on the chart.	bars, exchange, market, symbol, timeframe, withDerivatives
market_relationships	Professional multi-asset relationship analysis on timestamp-aligned closed-bar log returns. Returns a correlation matrix plus rolling correlation, OLS beta/alpha, R-squared, upside/downside correlation, relative performance, one-bar lead/lag diagnostics and a rolling log-price spread z-score versus	bars, benchmark, exchange, market, rollingWindow, symbols, timeframe
market_dominance	Current crypto market-cap structure from a server-cached aggregate source: real BTC and ETH dominance, total market cap/volume, tracked stablecoin share and leading asset shares with source and timestamps. Use this for BTC.D/rotation context. This is a current snapshot, not a historical dominance ba
market_derivatives	Funding, open interest, positioning and taker flow for a loaded contract. Venues publish different subsets; anything a venue does not publish comes back as unavailable rather than zero.	ref
hyperliquid_whale_read	Read current public Hyperliquid positions for a frozen, research-screened whale cohort. Returns account-normalized consensus, participation, agreement, effective-wallet count, single-wallet concentration, liquidity and optional recent fills for the focus symbol. Use this for whale/smart-money positi	flowHours, includeRecentFlow, maxFlowWallets, minimumDayVolumeUsd, symbol, topSymbols
indicator_compute	Run any indicator in the catalogue. Returns EVERY output series it has — Donchian gives three bands, MACD gives line, signal and histogram — each reduced, plus the indicator's own conventional levels so the reading can be interpreted against its actual scale. Pass a symbol to load and compute in one	exchange, includeForming, market, params, plot, reduce, ref, studyId, symbol, timeframe
formula_evaluate	Evaluate a Basis formula expression over a loaded window. Functions are listed by catalog_search kind=formula; series named open, high, low, close, volume, returns and more. Multi-line with `let` bindings is supported; the last expression is the result.	exchange, expression, includeForming, market, parameters, reduce, ref, symbol, timeframe
backtest_run	Backtest one built-in strategy with one set of parameters. Fills happen at the next bar's open and costs are charged per side. Returns risk-adjusted metrics alongside the raw return — judge on those, not on total return.	direction, exchange, feeBps, market, maxBarsHeld, params, ref, slippageBps, stopLossPercent, strategyId, symbol, takeProfitPercent, timeframe
strategy_research	Run one chronological research experiment across many built-in strategies, instruments and timeframes. Use this for broad discovery instead of many backtest_run calls — and in particular instead of testing one strategy on coin after coin, which is a search whether or not it is called one. It ranks o	bars, direction, embargoBars, exchange, feeBps, folds, inSampleFraction, market, minimumTrades, slippageBps, strategyIds, symbol, symbols, timeframes
position_calculate	Risk-first position sizing with quantity, notional, margin, effective leverage, fees, funding, breakeven, liquidation estimate, target R multiples and warnings. Use position_plan_on_chart instead when the user should see the plan on the chart.	entry, equity, feeBps, fundingPerDay, fundingRate, holdingHours, leverage, maintenanceMarginRate, riskPercent, side, stop, targets
trade_experience_retrieve	Retrieve compact historical trade analogues for the current market state. Plans are deterministic synthetic templates, while fills, stop/target ordering, MAE/MFE and outcomes are settled on later historical candles with costs. Use it to compare similar wins and failures, never as proof of an edge.	bars, exchange, feeBps, limit, market, ref, setup, side, slippageBps, stride, symbol, symbols, timeframe
news_recent	Recent crypto headlines with an impact score and the assets each one touches. Impact is a keyword heuristic, not a judgement about the market. Pass hours for "today" or "the last 24 hours"; every headline says how old it is.	asset, hours, limit, minImpact
news_detect_assets	Which crypto assets a piece of text refers to. Word-bounded, so "button" does not match TON and "operation" does not match OP.	text
chart_state	The chart you are building for this person: venue, symbol, timeframe, chart type, every indicator with its instance id and parameters, and every drawing. Start here when you need an instance id, and call it again after changes to confirm what landed. Finish with chart_link to give the person somethi
chart_set_instrument	Point the chart at a market. Venue and symbol as the exchange writes them, e.g. BTCUSDT on binance. This changes the chart you are building, which the person opens through chart_link.	exchange, market, symbol
chart_set_timeframe	Change the chart timeframe, e.g. 15m, 1h, 4h, 1d. Changes the chart you are building; finish with chart_link, or analysis_prepare for a sharing draft that needs human review.	timeframe
chart_set_type	Change how price is drawn — candles, heikin ashi, line, renko, footprint and others. A wrong id is refused, and the refusal lists every one that works. Changes the chart you are building; finish with chart_link, or analysis_prepare for a sharing draft that needs human review.	chartType
chart_add_indicator	Put an indicator on the chart. studyId is an id or a common name ("ema20", "bollinger"); catalog_describe lists parameters. Omitted ones use the default. Changes the chart you are building; finish with chart_link, or analysis_prepare for a sharing draft that needs human review.	params, studyId
chart_update_indicator	Edit the parameters of an existing indicator instance. First call chart_state to get its instance id; use catalog_describe for supported parameters. To delete use chart_remove_indicator, to hide/show use chart_toggle_indicator. Changes the chart you are building; finish with chart_link, or analysis_	instanceId, params
chart_remove_indicator	Delete an indicator instance from the chart. Use chart_state to find its instance id. To temporarily hide it instead, use chart_toggle_indicator. Changes the chart you are building; finish with chart_link, or analysis_prepare for a sharing draft that needs human review.	instanceId
chart_toggle_indicator	Hide or show an indicator without removing it — useful for comparing a chart with and without something. Changes the chart you are building; finish with chart_link, or analysis_prepare for a sharing draft that needs human review.	instanceId
drawing_add	Draw on the chart. Points are {time, price} in chart coordinates — time in seconds, matching the candle timestamps a data handle reports. A horizontal line needs one point; a trendline or box needs two. Both numbers must be copied from a tool result — a summary's max with its maxAt, a crossing with	arrowEnd, arrowStart, color, extendLeft, extendRight, fill, fillOpacity, fontSize, levels, lineStyle, opacity, points, ref, showLabels, showStats, symbol, text, tool, width
fibonacci_draw	Draw a Fibonacci study directly on the chart with exact candle coordinates and optional custom ratios. Supports retracement, extension, channel, time, fan, circle, spiral, arc and wedge variants. Prefer swing timestamps/prices returned by market_candles computations rather than visual guesses. Chang	arrowEnd, arrowStart, color, extendLeft, extendRight, fill, fillOpacity, fontSize, levels, lineStyle, opacity, points, ref, showLabels, showStats, symbol, text, tool, width
drawing_freehand	Create one or more precise freehand strokes as a single undoable composition. A stroke accepts arbitrary chart points; line accepts two endpoints; ellipse and rectangle accept two opposite corners and are generated smoothly. Use highlighter for translucent emphasis and brush for circles, paths and m	arrowEnd, arrowStart, color, extendLeft, extendRight, fill, fillOpacity, fontSize, lineStyle, mode, opacity, ref, showLabels, showStats, strokes, symbol, text, width
position_draw_on_chart	The chart-only long/short position drawing tool. Draw an entry, stop and target box immediately when those price levels are known. It needs no account equity or risk percentage, performs no position sizing and places no order. Use position_plan_on_chart instead only when the user also wants quantity	barsWide, entry, fromTime, side, stop, symbol, target, timeframe, toTime
position_plan_on_chart	Calculate a risk-first long/short position and draw the entry, stop and first target directly on the live chart. The drawing retains quantity, notional, margin, costs, liquidation estimate, targets, warnings and an optional sandbox program id so later analysis reads the same plan the user sees. Chan	barsWide, entry, equity, feeBps, fromTime, fundingPerDay, fundingRate, holdingHours, leverage, maintenanceMarginRate, note, riskPercent, side, stop, strategyProgramId, symbol, targets, timeframe, toTime
drawing_style	Change how an existing drawing looks. Get the id from chart_state. Use it to keep several drawings apart — a measured level and a projected one should not be the same colour, and a reader has only the picture to tell them by. Changes the chart you are building; finish with chart_link, or analysis_pr	arrowEnd, arrowStart, color, extendLeft, extendRight, fill, fillOpacity, fontSize, id, lineStyle, opacity, showLabels, showStats, symbol, text, width
drawing_delete	Delete a drawing. This cannot be undone — the shape is not recoverable — so the user is asked first. Changes the chart you are building; finish with chart_link, or analysis_prepare for a sharing draft that needs human review.	id, symbol
screener_run	Scan the venue's listed instruments for ones matching conditions, instead of looking at the open chart. Rules combine price fields, any indicator plot, or a formula expression, with ALL/ANY matching. This is the tool for "which coins are doing X right now". It fetches history for every instrument in	exchange, limit, logic, lookback, manualSymbols, market, name, order, quote, rules, sortBy, timeframe, universeSize
daytrade_opportunity_scan	Run one symmetric long/short scan over the same top-volume universe and return rule-independent breadth, 24h liquidity semantics and ranked directional candidates. Use this first for comprehensive day-trade or scalp discovery; then deep-dive only the shortlist with derivatives/order-flow tools. A lo	exchange, limitPerSide, longRules, lookback, manualSymbols, market, name, quote, shortRules, timeframe, universeSize
screener_backtest	Historically replay a cross-sectional screen at every bar. Matching instruments form an equal-weight long or short portfolio, entered at the next bar open and held to the following bar open, then re-screened. Use this when the question is whether repeatedly trading screener matches worked — a single	direction, exchange, feeBps, logic, lookback, manualSymbols, market, maxPositions, name, quote, rules, slippageBps, timeframe, universeSize
calendar_upcoming	Scheduled events ahead: FOMC rate decisions, US CPI and non-farm payrolls from the Fed's and BLS's published calendars, the next funding settlements for a contract, the Bitcoin halving projected from live block height, difficulty retargets, monthly options expiry and CME settlement. Every row states	days, impact, limit, symbol
orderflow_read	Aggressor-side order flow: buy and sell volume separated by who crossed the spread, delta, the footprint by price level, the point of control, and absorption or stacked imbalance. Measured from the venue aggressor tag, not inferred from bar direction — use it when the question is who is being aggres	bucketSize, candleTime, endTime, exchange, includeSignals, levels, market, minutes, symbol, timeframe
news_history	Read archived crypto headlines, newest first, with source links. Use news_recent for live headlines. Paginate with nextBefore (ISO timestamp). Archive coverage starts when Basis began collecting; an empty page does not prove no news occurred. No full article text.	asset, before, limit, topic
calendar_history	Past calendar dates: FOMC rate decisions, US CPI and non-farm payroll releases from the Fed's and BLS's published calendars (February 2025 on), plus reconstructed conventions (options expiry, CME settlement). Dates only: NOT actual, forecast or previous economic values. No historical funding or halv	from, to
chart_link	Publish the chart and get a URL the person can open in Basis. Call it at the end of any answer about a market: the chart is half the answer. Either build first with the chart tools, or pass symbol, timeframe, indicators and levels here to build and publish in one call. Give the URL as a link and say	exchange, indicators, levels, market, note, symbol, timeframe
chart_image	See the chart you are building: returns a PNG of it -- candles, volume, every indicator and drawing -- rendered the way Basis draws it, plus the exact figures it shows. Use it to check structure, levels and what you drew before you describe them. Build first with the chart tools, or pass symbol, tim	bars, exchange, indicators, levels, market, size, symbol, timeframe
alert_link	Prepare a price, indicator, chart-drawing, news, calendar or Founder whale-group alert and get a link that sets it in Basis in one click. Use it whenever the person wants to be told when something happens -- a level breaks, RSI crosses 70, price crosses a trend line, a high-impact ETF headline lands	conditions, cooldownMinutes, drawingId, eventTrigger, exchange, frequency, market, match, message, name, price, symbol, timeframe, when
analysis_prepare	Prepare a PRIVATE sharing package of the current chart image, editable analysis and social caption. Only use when asked for something shareable. Returns a private review link, NOT a public link. The person must open it, edit/review and explicitly publish; you cannot publish or post on their behalf.	body, caption, exchange, indicators, levels, market, symbol, timeframe, title
founders_preview	What Basis Founders adds to this connection, and the live totals a non-member may see: how many screened Hyperliquid whales are tracked, their combined book and the coin most of them hold. Founders is an optional paid membership; this tool is free and always answers. Use it when a question needs wha

Issues

catalog_search: possible prompt injection

Install

claude mcp add --transport http basis https://www.basischarts.com/api/mcp

{
  "mcpServers": {
    "basis": {
      "type": "http",
      "url": "https://www.basischarts.com/api/mcp"
    }
  }
}

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