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Basis

REMOTE · WWW.BASISCHARTS.COM · SCANNED SEP 20

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

63 Trust /100
Trust breakdown (7 categories)

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →

Endpoint Security63
Transport & Reachability100
Schema Quality & AI Usability67
  • AI-judged instruction clarity (excellent).Pass
  • Context-footprint check failed: tool/resource definitions use about 7692 tokens (~197/item across 39 items; 39 tools + 0 resources), over budget; trim descriptions and params. See how to fix → Fail
  • Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management0
  • Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage87
  • 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
  • 62% of tool parameters carry a description.Partial
Tool Safety100
  • No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
  • All 3 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
  • An AI judge read all 40 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
  • Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail

Unverified: 1 category

A category scored 0 because we could not verify it: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.

Install

How do I install the Basis MCP server?

Basis is a hosted endpoint at https://www.basischarts.com/api/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

remote · www.basischarts.com

# add to Claude Code
claude mcp add --transport http com-basischarts-basis 'https://www.basischarts.com/api/mcp'
// .cursor/mcp.json
{
  "mcpServers": {
    "com-basischarts-basis": {
      "url": "https://www.basischarts.com/api/mcp"
    }
  }
}
// .vscode/mcp.json
{
  "servers": {
    "com-basischarts-basis": {
      "type": "http",
      "url": "https://www.basischarts.com/api/mcp"
    }
  }
}
# ~/.codex/config.toml
[mcp_servers.com-basischarts-basis]
url = "https://www.basischarts.com/api/mcp"
// opencode.json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-basischarts-basis": {
      "type": "remote",
      "url": "https://www.basischarts.com/api/mcp",
      "enabled": true
    }
  }
}
# add to OpenClaw
openclaw mcp add com-basischarts-basis --url 'https://www.basischarts.com/api/mcp' --transport streamable-http
# ~/.hermes/config.yaml
mcp_servers:
  com-basischarts-basis:
    url: "https://www.basischarts.com/api/mcp"
// ~/.netclaw/config/netclaw.json
{
  "McpServers": {
    "com-basischarts-basis": {
      "Transport": "http",
      "Url": "https://www.basischarts.com/api/mcp"
    }
  }
}
# add to Vellum
assistant mcp add com-basischarts-basis -t streamable-http -u 'https://www.basischarts.com/api/mcp'
// mcp.json
{
  "mcpServers": {
    "com-basischarts-basis": {
      "type": "http",
      "url": "https://www.basischarts.com/api/mcp"
    }
  }
}

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

Changelog

Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.

  • 20 Sept 26 63

    First indexed and scored.

Diagnostics

Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.

Captured 20 Sept 2026 · Probed https://www.basischarts.com/api/mcp

TLS valid

Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .

Subject Issuer Valid from Valid until Key Signature Serial
CN=*.basischarts.com CN=YR2,O=Let's Encrypt,C=US 18 Aug 2026 16 Nov 2026 RSA 2048 SHA256-RSA 59eab01271ed73c15548043a5f99a2fb119
SANs: *.basischarts.com, basischarts.com
CN=YR2,O=Let's Encrypt,C=US (CA) CN=Root YR,O=ISRG,C=US 3 Sept 2025 2 Sept 2028 RSA 2048 SHA256-RSA 4ebd24947e24d394802d84a52fd5b319
CN=Root YR,O=ISRG,C=US (CA) CN=ISRG Root X1,O=Internet Security Research Group,C=US 13 May 2026 2 Sept 2032 RSA 4096 SHA256-RSA f24b6d17f9d9ad7cb1c9fea78782699f

Background: What to check on a remote MCP endpoint →

DNSSEC insecure

Validation of www.basischarts.com. Not signed

Zone DS Keys Algorithms Outcome
. trust_anchor 20326, 38696 8, 8 Verified
com. present 19718 13 Verified
basischarts.com. absent Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation
Authentication No authorisation required

The endpoint answered without asking for a token. Anyone who knows the URL can reach it.

Result No authorisation required
HTTP status 200
Header Value
strict-transport-security max-age=63072000; includeSubDomains; preload
x-content-type-options nosniff
x-frame-options DENY
referrer-policy strict-origin-when-cross-origin
permissions-policy camera=(), microphone=(), geolocation=(), browsing-topics=()

Background: How OAuth 2.1 works in the 2026 MCP spec →

Transports 2 probes
Transport URL Outcome Status Location
streamable-http https://www.basischarts.com/api/mcp Verified 200
http (plaintext) http://www.basischarts.com/api/mcp HTTPS enforced 308 https://www.basischarts.com/api/mcp
MCP tools · 39 exposed · ~7,177 tokens

The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →

Tool Tokens
alert_link ~434

Prepare a price or indicator 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 moves 5%. For a price level pass price (and when, or it is chosen from the current price); for anything else pass conditions. Give the URL as a link and say in one line what it watches. Nothing is armed until they open it and confirm. No account needed; the link lasts seven days.

NameTypeReqDescription
conditionsarrayInstead of price. Each {left, operator, right}. An operand is a number, a price field ("close"), an indicator name ("rsi", "ema50"), or {"type":"indicator","studyId":"macd","plotKey":"histogram","par…
cooldownMinutesnumberWith frequency cooldown.
exchangestring
frequencystringDefault once: fires, then switches itself off.
marketstring
matchstringHow conditions combine. Default all.
messagestringOptional note carried into the notification.
namestringWhat the person sees when it fires. Chosen for you if omitted.
pricenumberShorthand for a price-level alert.
symbolstringe.g. BTCUSDT. Defaults to the chart you are building.
timeframestringBars the alert is checked on, e.g. 15m, 1h, 4h. One of 1m, 3m, 5m, 10m, 15m, 30m, 1h, 2h, 4h, 6h, 8h, 12h, 1d, 3d, 1w, 1M.
whenstringWith price. Omit to pick the crossing from where price is now.

No output schema declared.

No examples provided.

backtest_run ~216

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.

NameTypeReqDescription
directionstring
exchangestring
feeBpsnumberPer side. Default 4.
marketstringDefault: the chart.
maxBarsHeldnumberOptional time stop in bars.
paramsobject
refstringReuse a handle from market_candles instead of loading.
slippageBpsnumberDefault 1.
stopLossPercentnumberOptional protective stop percentage.
strategyIdstringyes
symbolstringDefault: the chart.
takeProfitPercentnumberOptional profit target percentage.
timeframestringe.g. 1h, 4h. Default: the chart.

No output schema declared.

No examples provided.

calendar_upcoming ~195

Scheduled events ahead: the next funding settlements for a contract, the Bitcoin halving projected from live block height, difficulty retargets, monthly options expiry, CME settlement and non-farm payrolls. Every row states where its date came from — live, a published rule, an estimate, or the user — because a halving projected from block arrival and an expiry fixed by convention are not equally certain. Use it before saying anything about what happens next; nothing else here looks forward. FOMC and CPI are absent on purpose: their dates are announced rather than derivable, so this does not have them.

NameTypeReqDescription
daysnumberHorizon ahead. Default 30, max 365.
impactstringOnly events at or above this impact.
limitnumberDefault 20, max 50.
symbolstringContract for funding settlements. Defaults to the charted symbol.

No output schema declared.

No examples provided.

catalog_describe ~59

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.

NameTypeReqDescription
idstringyes
kindstringyes

No output schema declared.

No examples provided.

catalog_search ~127

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 exist — and always before drawing, because a drawing tool id you guessed is refused. Leave the query empty to list everything of a kind.

NameTypeReqDescription
kindstringyes
limitnumberDefault 25, max 100.
querystringFree text; matches name, description and category.

No output schema declared.

No examples provided.

chart_add_indicator ~82

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; call chart_link when you are done so the person can open it.

NameTypeReqDescription
paramsobject
studyIdstringyes

No output schema declared.

No examples provided.

chart_image ~255

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, timeframe, indicators and levels to build and look in one call. Pixels are for shape; quote numbers from the figures or the data tools.

NameTypeReqDescription
barsnumberBars to show, 20-500. Default 150, widened to include every drawing.
exchangestring
indicatorsarrayIds or common names ("ema50", "rsi", "bollinger"), or {studyId, params}.
levelsarrayPrices to mark as horizontal lines, or {price, label, color}.
marketstring
sizestringsmall 800x480, medium 1200x720 (default), large 1600x960.
symbolstringOptional: set the instrument in this call.
timeframestringOptional, e.g. 15m, 4h, 1d.

No output schema declared.

No examples provided.

chart_link ~223

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 in one line what it shows. No account needed; the link lasts seven days.

NameTypeReqDescription
exchangestring
indicatorsarrayIds or common names ("ema50", "rsi", "bollinger"), or {studyId, params}.
levelsarrayPrices to mark as horizontal lines, or {price, label, color}.
marketstring
notestringOne line describing what this chart shows, for your own reply. Not stored and not shown on the chart.
symbolstringOptional: set the instrument in this call.
timeframestringOptional, e.g. 15m, 4h, 1d.

No output schema declared.

No examples provided.

chart_remove_indicator ~54

Take an indicator off the chart. Identify it by instanceId from chart_state. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
instanceIdstringyes

No output schema declared.

No examples provided.

chart_set_instrument ~73

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.

NameTypeReqDescription
exchangestring
marketstring
symbolstringyes

No output schema declared.

No examples provided.

chart_set_timeframe ~62

Change the chart timeframe, e.g. 15m, 1h, 4h, 1d. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
timeframestringyes

No output schema declared.

No examples provided.

chart_set_type ~75

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; call chart_link when you are done so the person can open it.

NameTypeReqDescription
chartTypestringyes

No output schema declared.

No examples provided.

chart_state ~71

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 something to open.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

chart_toggle_indicator ~57

Hide or show an indicator without removing it — useful for comparing a chart with and without something. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
instanceIdstringyes

No output schema declared.

No examples provided.

chart_update_indicator ~85

Retune an indicator already on the chart. Identify it by the instanceId from chart_state, not by its study id — the same indicator can be on the chart more than once at different settings. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
instanceIdstringyes
paramsobjectyes

No output schema declared.

No examples provided.

crypto_quant_guide ~100

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 pattern, interpreting an indicator level, designing a strategy or judging a result that looks strong. It carries no live market data.

NameTypeReqDescription
topicstringyes

No output schema declared.

No examples provided.

daytrade_opportunity_scan ~184

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 low match count is never reported as breadth.

NameTypeReqDescription
limitPerSidenumberCandidates returned per direction. Default 10, max 25.
longRulesarrayyes
lookbacknumberDefault 300.
manualSymbolsarrayOptional symbols forced into the universe before current-volume ranking.
namestring
quotestring
shortRulesarrayyes
timeframestringDiscovery timeframe; normally 15m or 1h.
universeSizenumberDefault 100.

No output schema declared.

No examples provided.

drawing_add ~540

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 its time — never read off your own prose or carried over from a different computation. The result echoes back what was drawn: check it against the figures you are about to quote, because a line that disagrees with the paragraph beside it is worse than no line. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
arrowEndboolean
arrowStartboolean
colorstringA palette name. “up” and “down” are the reserved green and red — they assert a bullish or bearish claim, so use them for position zones and not for a measurement.
extendLeftboolean
extendRightboolean
fillstringPalette fill colour, or “none”.
fillOpacitynumberShape fill opacity from 0 to 1.
fontSizenumberLabel/text size from 8 to 28.
levelsarrayCustom Fibonacci ratios. Example: [0, 0.382, 0.5, 0.618, 0.786, 1, 1.272, 1.618].
lineStylestring
opacitynumberStrength of the whole drawing, 0.1 to 1. Fade a level that is context rather than the decision.
pointsarrayyes
refstringA handle from market_candles. Given one, the points are checked against the window it covers and a drawing that would land outside it is refused. Pass it whenever the coordinates came from a computat…
showLabelsboolean
showStatsboolean
symbolstringDefaults to the charted symbol.
textstringText for annotation tools.
toolstringyesA tool id from catalog_search with kind "drawing" — e.g. horizontalLine, trendLine, rectangle, fibRetracement, longPosition or shortPosition. Prefer position_draw_on_chart for an entry/stop/target bo…
widthnumberStroke width in pixels, 1 to 6.

No output schema declared.

No examples provided.

drawing_delete ~66

Delete a drawing. This cannot be undone — the shape is not recoverable — so the user is asked first. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
idstringyes
symbolstring

No output schema declared.

No examples provided.

drawing_freehand ~319

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 marks. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
arrowEndboolean
arrowStartboolean
colorstringA palette name. “up” and “down” are the reserved green and red — they assert a bullish or bearish claim, so use them for position zones and not for a measurement.
extendLeftboolean
extendRightboolean
fillstringPalette fill colour, or “none”.
fillOpacitynumberShape fill opacity from 0 to 1.
fontSizenumberLabel/text size from 8 to 28.
lineStylestring
modestring
opacitynumberStrength of the whole drawing, 0.1 to 1. Fade a level that is context rather than the decision.
refstring
showLabelsboolean
showStatsboolean
strokesarrayyes
symbolstring
textstringText for annotation tools.
widthnumberStroke width in pixels, 1 to 6.

No output schema declared.

No examples provided.

drawing_style ~307

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; call chart_link when you are done so the person can open it.

NameTypeReqDescription
arrowEndboolean
arrowStartboolean
colorstringA palette name. “up” and “down” are the reserved green and red — they assert a bullish or bearish claim, so use them for position zones and not for a measurement.
extendLeftboolean
extendRightboolean
fillstringPalette fill colour, or “none”.
fillOpacitynumberShape fill opacity from 0 to 1.
fontSizenumberLabel/text size from 8 to 28.
idstringyesFrom chart_state.
lineStylestring
opacitynumberStrength of the whole drawing, 0.1 to 1. Fade a level that is context rather than the decision.
showLabelsboolean
showStatsboolean
symbolstringDefaults to the charted symbol.
textstringText for annotation tools.
widthnumberStroke width in pixels, 1 to 6.

No output schema declared.

No examples provided.

fibonacci_draw ~326

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. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
arrowEndboolean
arrowStartboolean
colorstringA palette name. “up” and “down” are the reserved green and red — they assert a bullish or bearish claim, so use them for position zones and not for a measurement.
extendLeftboolean
extendRightboolean
fillstringPalette fill colour, or “none”.
fillOpacitynumberShape fill opacity from 0 to 1.
fontSizenumberLabel/text size from 8 to 28.
levelsarray
lineStylestring
opacitynumberStrength of the whole drawing, 0.1 to 1. Fade a level that is context rather than the decision.
pointsarrayyes
refstring
showLabelsboolean
showStatsboolean
symbolstring
textstringText for annotation tools.
toolstringyes
widthnumberStroke width in pixels, 1 to 6.

No output schema declared.

No examples provided.

formula_evaluate ~162

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.

NameTypeReqDescription
exchangestring
expressionstringyes
includeFormingboolean
marketstringDefault: the chart.
parametersobject
reducestring
refstringReuse a handle from market_candles instead of loading.
symbolstringDefault: the chart.
timeframestringe.g. 1h, 4h. Default: the chart.

No output schema declared.

No examples provided.

hyperliquid_whale_read ~206

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 positioning as one evidence family, never as a standalone signal.

NameTypeReqDescription
flowHoursnumberRecent-flow window. Default 24h, range 1-168h.
includeRecentFlowbooleanAlso inspect recent focus-symbol fills for at most four leading contributors.
maxFlowWalletsnumberWallets sampled for fills. Default/max 4.
minimumDayVolumeUsdnumber24h Hyperliquid notional-volume floor. Default $5,000,000.
symbolstringFocus symbol; defaults to the charted symbol.
topSymbolsnumberMarket-consensus rows to return. Default 10, max 15.

No output schema declared.

No examples provided.

indicator_compute ~218

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 call, or a handle to reuse data. The forming bar is excluded unless you ask for it.

NameTypeReqDescription
exchangestring
includeFormingboolean
marketstringDefault: the chart.
paramsobjectDefaults are used for anything omitted.
plotstringOne output only. Usually omit: the others give the reading meaning.
reducestring
refstringReuse a handle from market_candles instead of loading.
studyIdstringyesFrom catalog_search.
symbolstringDefault: the chart.
timeframestringe.g. 1h, 4h. Default: the chart.

No output schema declared.

No examples provided.

market_candles ~139

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.

NameTypeReqDescription
barsnumberDefault 1000, max 50000.
exchangestring
marketstringDefault: the chart.
symbolstringDefault: the chart.
timeframestringe.g. 15m, 1h, 4h, 1d.
withDerivativesbooleanAlso load funding, open interest and positioning for this contract.

No output schema declared.

No examples provided.

market_derivatives ~51

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.

NameTypeReqDescription
refstringyes

No output schema declared.

No examples provided.

market_dominance ~71

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 backtest series.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

market_relationships ~188

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 a benchmark. Use this for BTC correlation, beta, pairs and relative-strength work; price-level correlation is deliberately not reported.

NameTypeReqDescription
barsnumberDefault 1500, max 10000 per market.
benchmarkstringDefault BTCUSDT.
exchangestring
marketstring
rollingWindownumberLatest return observations. Default 90.
symbolsarrayyes2 to 10 markets, e.g. ETHUSDT, SOLUSDT. Benchmark is added if omitted.
timeframestringDefault chart timeframe.

No output schema declared.

No examples provided.

news_detect_assets ~47

Which crypto assets a piece of text refers to. Word-bounded, so "button" does not match TON and "operation" does not match OP.

NameTypeReqDescription
textstringyes

No output schema declared.

No examples provided.

news_recent ~76

Recent crypto headlines with an impact score and the assets each one touches. Impact is a keyword heuristic, not a judgement about the market.

NameTypeReqDescription
assetstringBase symbol, e.g. BTC. Omit for everything.
limitnumberDefault 15, max 40.
minImpactstring

No output schema declared.

No examples provided.

orderflow_read ~253

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 aggressive, which candles cannot answer. For one candle pass candleTime, which reads exactly that bar; otherwise it reads the last `minutes`. Report coveredMinutes, not the minutes asked for.

NameTypeReqDescription
bucketSizenumberPrice bucket width. Omit unless matching a footprint on screen.
candleTimenumberA bar open time, s or ms: reads that whole candle.
endTimenumberWindow end, default now.
exchangestring
includeSignalsbooleanAbsorption and stacked imbalance. Default true.
levelsnumberPrice rows. Default 12, max 40.
marketstringDefault: the chart.
minutesnumberDefault 15, max 60.
symbolstringDefault: the chart.
timeframestringWith candleTime. Defaults to the chart timeframe.

No output schema declared.

No examples provided.

position_calculate ~240

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.

NameTypeReqDescription
entrynumberyes
equitynumberyesAccount equity in quote currency.
feeBpsnumberFee per side in basis points. Default 4.
fundingPerDaynumberFunding settlements per day. Default 3.
fundingRatenumberFunding per settlement as a fraction, e.g. 0.0001.
holdingHoursnumberExpected holding time for the funding estimate.
leveragenumberSelected venue leverage. Default 1.
maintenanceMarginRatenumberFraction used for approximate liquidation. Default 0.005.
riskPercentnumberyesEquity risked if the stop fills, in percent.
sidestringyes
stopnumberyes
targetsarrayyesTake-profit prices and the percentage closed at each. Allocations should total 100.

No output schema declared.

No examples provided.

position_draw_on_chart ~178

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 and risk calculations. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
barsWidenumberWidth when timestamps are omitted. Default 20 bars.
entrynumberyes
fromTimenumberOptional start timestamp in seconds.
sidestringyes
stopnumberyes
symbolstring
targetnumberyes
timeframestring
toTimenumberOptional end timestamp in seconds.

No output schema declared.

No examples provided.

position_plan_on_chart ~352

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. Changes the chart you are building; call chart_link when you are done so the person can open it.

NameTypeReqDescription
barsWidenumberWidth when timestamps are omitted. Default 20 bars.
entrynumberyes
equitynumberyesAccount equity in quote currency.
feeBpsnumberFee per side in basis points. Default 4.
fromTimenumberOptional start timestamp in seconds.
fundingPerDaynumberFunding settlements per day. Default 3.
fundingRatenumberFunding per settlement as a fraction, e.g. 0.0001.
holdingHoursnumberExpected holding time for the funding estimate.
leveragenumberSelected venue leverage. Default 1.
maintenanceMarginRatenumberFraction used for approximate liquidation. Default 0.005.
notestring
riskPercentnumberyesEquity risked if the stop fills, in percent.
sidestringyes
stopnumberyes
strategyProgramIdstringOptional sandbox program linked to this plan.
symbolstring
targetsarrayyesTake-profit prices and the percentage closed at each. Allocations should total 100.
timeframestring
toTimenumberOptional end timestamp in seconds.

No output schema declared.

No examples provided.

screener_backtest ~245

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-symbol backtest of coins that match today is not a substitute. Costs follow actual portfolio turnover, so an unchanged holding is not charged as a fresh round trip.

NameTypeReqDescription
directionstringDefault long.
feeBpsnumberPer side. Default 4.
logicstringDefault all.
lookbacknumberBars. Default 300.
manualSymbolsarrayOptional symbols forced into the universe before current-volume ranking.
maxPositionsnumberEqual-weight slots, 1 to 50. Default 10.
namestring
quotestringDefault USDT.
rulesarrayyes
slippageBpsnumberPer side. Default 1.
timeframestringDefaults to the chart.
universeSizenumberDefault 50.

No output schema declared.

No examples provided.

screener_run ~197

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 the universe, so it is slow and worth asking for once with the right conditions rather than repeatedly with narrower ones.

NameTypeReqDescription
limitnumberMatches to return. Default 25, max 60.
logicstringDefault all.
lookbacknumberBars. Default 300.
manualSymbolsarrayOptional symbols forced into the universe before current-volume ranking.
namestring
quotestringDefault USDT.
rulesarrayyes
timeframestringDefaults to the chart.
universeSizenumberDefault 50.

No output schema declared.

No examples provided.

strategy_research ~383

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 only on a selection window, checks several subperiods, leaves an embargo, reveals held-out performance, doubles costs as a stress test, compares buy-and-hold, and corrects the selected Sharpe for every strategy/symbol/timeframe combination tried.

NameTypeReqDescription
barsnumberPer symbol and timeframe. Default 3000, max 10000.
directionstring
embargoBarsnumberGap before held-out data. Default 10.
exchangestring
feeBpsnumberPer side. Default 4.
foldsnumberSelection subperiods, 2..8. Default 4.
inSampleFractionnumberSelection share, 0.5..0.8. Default 0.7.
marketstringDefault: the chart.
minimumTradesnumberReliability penalty threshold. Default 30.
slippageBpsnumberPer fill. Default 1.
strategyIdsarrayBuilt-in ids from catalog_search. Omit for the full library.
symbolstringDefaults to the charted symbol.
symbolsarrayUp to 8 instruments to search across, e.g. BTCUSDT, ETHUSDT. Every symbol is another trial and the deflated Sharpe accounts for it.
timeframesarrayUp to 6, e.g. 15m, 1h, 4h, 1d. Defaults to the chart timeframe.

No output schema declared.

No examples provided.

trade_experience_retrieve ~261

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.

NameTypeReqDescription
barsnumberHistory per symbol. Default 1500; min 300, max 3000.
exchangestring
feeBpsnumberFee per side. Default 4 basis points.
limitnumberDisplayed analogues. Default 12; max 20.
marketstring
refstringOptional market_candles handle for the query state.
setupstring
sidestring
slippageBpsnumberAdverse slippage per side. Default 1 basis point.
stridenumberEvaluate one signal point every N bars. Default 4.
symbolstringQuery symbol; defaults to the chart.
symbolsarrayOptional same-venue peer corpus. Query symbol is always included.
timeframestringQuery timeframe; defaults to the chart.

No output schema declared.

No examples provided.

Common questions

What is the Basis MCP server?

Basis is an MCP server listed in the public MCP registry as com.basischarts/basis. Crypto market data, 200 indicators, order flow and a chart link. No account, no API key. This page covers its hosted endpoint (https://www.basischarts.com/api/mcp).

Is the Basis MCP server safe to use?

Basis scores 63 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

What tools does the Basis MCP server expose?

Basis exposes 39 tools: catalog_search, catalog_describe, crypto_quant_guide, market_candles, market_relationships, and 34 more. Their descriptions and schemas cost roughly 7,177 tokens of context every time the server is loaded.

Does the Basis MCP server require authentication?

No. We connected to Basis without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

Is the Basis MCP server still maintained?

Basis is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.