mcpcost

io.github.beepboop2025/umbra-proof

umbra-proof

Is the io.github.beepboop2025/umbra-proof MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-29.

Verify Umbra bridge accountability proofs (signed receipts, checkpoints, Merkle inclusion).

alive probed 2026-11-15 · unchanged since 2026-10-29

3tools
1.9ktokens in Claude Opus 5.5
0.9 %of Claude's 200k window
0.7×the median server
298 msto initialize
2 msto list tools
Run it
docker run -i --rm ghcr.io/beepboop2025/umbra-proof-mcp:v0.1.2 (stdio, probed in a container with the network off)
Host
ghcr.io
Reports itself as
umbra-proof 0.1.1
Capabilities
tools
Instructions
389 characters
Of a 1M window
0.2 % of a 1M context window
Count
1.9k tokens in Claude Opus 5.5, exact, measured 2026-10-29. With the Claude Code prefix mcp__…__ on each tool name: 1.9k. The o200k_base estimate is 1.1k. Counted again when the tool definitions change. Method.
Repository
https://github.com/beepboop2025/umbra-xmr-bridge
Registry
active, updated 2026-08-16 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.77×.

Tool≈ Claude tokenso200k estimateShare of this server
verify_swap_receipt67338136 %
verify_inclusion60034032 %
verify_checkpoint59933932 %

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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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