com.xstocker/agent-mcp

xStocker

Is the xStocker MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-30.

Build buy/sell orders for tokenized US stocks (xStocks) on Solana. Non-custodial.

alive probed 2026-11-15 · unchanged since 2026-10-30

4tools

1.4ktokens in Claude Opus 5.5

0.7 %of Claude's 200k window

0.5×the median server

315 msto initialize

11 msto list tools

Run it: npx -y @xstocker/mcp@0.2.0 (stdio, probed in a container with the network off)
Host: npmjs.com
Reports itself as: xstocker 0.2.0
Capabilities: tools
Instructions: none
Of a 1M window: 0.1 % of a 1M context window
Count: 1.4k tokens in Claude Opus 5.5, exact, measured 2026-10-16. With the Claude Code prefix mcp__…__ on each tool name: 1.4k. The o200k_base estimate is 808. Counted again when the tool definitions change. Method.
Website: https://xstocker.com/agents
Registry: active, updated 2026-10-11 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.69×.

Tool	≈ Claude tokens	o200k estimate	Share of this server
build_order	778	461	57 %
check_partner	275	163	20 %
list_assets	167	99	12 %
get_order_status	143	85	11 %

Other registry entries on npmjs.com, the ones next to this name; all of them.

Servers that mention custodial or tokenized.

The result of the latest probe, the tool count and the token cost. The feed has an entry for every probe that changed them.

Stops answering, comes back, tool set or cost changes. One confirmation mail first, a stop link in every mail.