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CubeSphere MCP server

Which MCP servers are CubeSphere's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-20

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Whose server it is
  • Registry namexyz.cubesphere/insiderverified in the MCP registry

The registry name sits under cubesphere.xyz. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-20
  • Stateanswerschecked 2026-10-20
  • Tools4
  • Server calls itselfcubespherex-mcp
  • Server version1.29.0
  • Protocol version2025-06-18

On 2026-10-20 the server answered initialize and tools/list without a sign-in. First answer in 590 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: Monitor crypto market signals as they refresh; Group coins into custom cubes by category; Review market events from the past 24 hours.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 7, the first on 2026-10-20
  • INITE MCP score72 of 100answers 100 · does the job 0 · definitions 100 · context 100 · connects 100
  • What an agent can do with it0 of 3 use cases
  • Answered100% of days7 of 7 daily checks
  • Median first answer580 ms
  • Space in an agent's context≈ 1,163 tokensthe definitions of all its tools (4), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results4 of 4 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • cannot · Monitor crypto market signals as they refresh
  • cannot · Group coins into custom cubes by category
  • cannot · Review market events from the past 24 hours

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers4 tools · read 2026-10-20
  • search_insider_events

    Search interpreted insider-trading events from SEC Form 4 filings. Each event classifies raw filing rows into economic meaning (OPEN_MARKET_BUY vs EQUITY_AWARD vs TAX_WITHHOLDING_ONLY etc.), separating discretionary trades from…

  • get_company_timeline

    Get one merged, time-ordered feed of SEC insider activity for a company: Form 4 events, Schedule 13D/13G stake filings, and Form 144 sale notices, distinguished by the source_form field (form4 | sc13 | form144). The limit applies after…

  • get_activist_stakes

    Get Schedule 13D/13G beneficial-ownership filings (activist and 5%+ large-holder stakes) for one company - ticker is required. Returns one row per filing with filer names and the maximum reported percent of class; detailed item narrative…

  • get_sale_notices

    Get Form 144 notices of proposed insider sales for one company - ticker is required. shares_to_sell and aggregate_market_value are as-filed intentions announced before the sale, not executed trades - the matching Form 4 sale, if any…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "insider": {
      "type": "http",
      "url": "https://mcp.cubesphere.xyz/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http cubesphere https://mcp.cubesphere.xyz/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://mcp.cubesphere.xyz/mcp as a custom connector in the settings.

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.