mcpcost

io.github.neat-cyber/agent-guardian

Agent Guardian — Experimental MCP Health Checks

Is the Agent Guardian MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-15.

Experimental MCP checks: synthetic tests and live HTTP history for a Guardian-owned service.

alive probed 2026-11-15 · HTTP 200

4tools
439tokens in Claude Opus 5.5
0.2 %of Claude's 200k window
0.2×the median server
508 msto initialize
1.2 sto list tools
Endpoint
https://agent-guardian.saromy-export.workers.dev/mcp (streamable-http)
Host
agent-guardian.saromy-export.workers.dev
Protocol
2025-06-18
Reports itself as
io.github.neat-cyber/agent-guardian 0.4.0
Capabilities
tools
Instructions
none
Of a 1M window
<0.1 % of a 1M context window
Count
439 tokens in Claude Opus 5.5, exact, measured 2026-11-15. With the Claude Code prefix mcp__…__ on each tool name: 483. The o200k_base estimate is 223. Counted again when the tool definitions change. Method.
Registry
active, updated 2026-11-15 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.97×.

Tool≈ Claude tokenso200k estimateShare of this server
check_demo1226228 %
demo_history1125726 %
check_live1065424 %
live_history985022 %

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mcpcost: alive

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

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