Paste one URL into Claude as a custom connector and it reads the market through Basis — candles on Binance, Bybit, OKX and Hyperliquid, order flow, funding and open interest, 200 indicators and backtests — and hands you a real chart. It works on every Claude plan, including Free, which allows one custom connector. No account and no API key on our side.
Claude reasons well about markets and is honest about its limits: ask it about today's price action and it will tell you it cannot see it. Without a data connection it can explain what funding means, but not what funding is.
A custom connector closes that gap. Claude calls Basis the way it would call any tool, reads the result, and builds its answer — and its chart — from what it just observed.
One server URL for every assistant. There is nothing to sign up for and no key to paste.
https://www.basischarts.com/api/mcpCustomize → Connectors → + Add → Add custom connector. Name it Basis, paste the URL, then Continue and Add.
Works on every Claude plan, including Free (one custom connector). There is nothing to authorise: the connector has no login step because Basis does not ask for one.
Run this once in any project. It is saved for every session afterwards.
claude mcp add --transport http basis https://www.basischarts.com/api/mcpPlugins → the plus button → Add custom MCP server. Paste the URL, accept the notice and press Create as a plugin. Then switch Basis on in a new chat.
ChatGPT asks you to confirm before a tool that changes something runs, and building a chart counts as one. Available on plans that allow custom MCP servers.
Add to ~/.cursor/mcp.json, or .cursor/mcp.json inside one project.
{
"mcpServers": {
"basis": {
"type": "http",
"url": "https://www.basischarts.com/api/mcp"
}
}
}Every client, tool and limit is on the Basis MCP page.
Live candles from one second to one month on Binance, Bybit, OKX and Hyperliquid, plus funding, open interest, positioning and liquidations, before it says anything.
Aggressor-tagged trades summed into delta and volume at price, so "buyers stepped in" is a number, not a vibe.
Market-wide screens on any indicator or price rule across the most traded coins — "find me the coins doing this" answered from the venue, not memory.
Backtests with fees and no lookahead, and comparisons across 33 built-in strategies with held-out validation.
Indicators, levels, Fibonacci and position boxes on a real chart, which Claude can look at to check its own work, behind a link that opens it in Basis.
One command adds Basis to Claude Code, so research scripts and notebooks can ask the same questions from your terminal.
Each one asks the assistant to check something specific, and says what it will look at — so you can tell a measured answer from a fluent one.
Which way are the screened Hyperliquid whales leaning on BTC, at what average entry, and how far is the price from that entry now?
Checks: A research-screened whale group's current positions: side, consensus entry, leverage and distance to liquidation.
Find coins on Binance where 1h RSI(14) is below 30 and chart the one with the most volume.
Checks: A market-wide screen on live candles, then a chart link.
What high-impact events are scheduled this month, and how did BTC trade in the 24 hours after the last US jobs report?
Checks: The event calendar and the candles around the release.
How correlated have SOL and ETH been this month, and is BTC dominance rising or falling?
Checks: Rolling correlation and the dominance series.
Prepare an alert for when BTC closes a 1h candle above the last swing high.
Checks: The swing from the chart and an alert rule you review before setting.
In Claude and Claude Desktop, open Customize, then Connectors, press + Add and choose Add custom connector. Name it Basis, paste the URL, then Continue and Add. On Team and Enterprise plans an admin adds it for the organisation and members connect it.
Claude reaches connectors from Anthropic's cloud, so the server has to be public — Basis is. There is nothing to log in to.
In Claude Code, one command adds it for every session afterwards: claude mcp add --transport http basis https://www.basischarts.com/api/mcp
Yes. Anthropic allows custom connectors on every plan, and Free allows one. Basis can be that one.
Yes: the server needs no account and no API key. An optional paid Basis Founders membership adds deeper tools through a personal link; nothing on this page needs it.
Customize, then Connectors, then + Add and Add custom connector. On Team and Enterprise plans an admin adds connectors for the organisation.
No. Basis has no exchange access. It reads public market data, computes, and builds charts and alert links.
Only the tool calls Claude makes, such as "ETHUSDT funding". Not your conversation and not your Anthropic account.
Binance, Bybit, OKX and Hyperliquid, spot and perpetual, read at the moment of each call, plus publisher news feeds, a calendar of scheduled market events and public Hyperliquid positions.
Paste the URL into your assistant, then ask it what the market is doing — and to show you what it checked.
https://www.basischarts.com/api/mcpSetup steps are as OpenAI and Anthropic document them in October 2026; menus change. Basis reports what venues publish and what the maths says about it. Nothing here is financial advice.