mcpcost

io.github.Nero-Engine/spark-pack

Spark Pack

Is the Spark Pack MCP server down? No. It answered initialize and tools/list in the probe of 2026-11-13.

Cable sizing, Part P, certificate checks and G98/G99 for UK electricians' AI assistants

alive probed 2026-11-14 · unchanged since 2026-11-13 · HTTP 200

7tools
8.5ktokens in Claude Opus 5.5
4.2 %of Claude's 200k window
3.4×the median server
350 msto initialize
244 msto list tools
Endpoint
https://spark-pack.nerolabs.workers.dev/mcp (streamable-http)
Host
spark-pack.nerolabs.workers.dev
Protocol
2025-06-18
Reports itself as
nerolabs-spark-pack 1.1.0
Capabilities
tools
Instructions
675 characters
Of a 1M window
0.8 % of a 1M context window
Count
8.5k tokens in Claude Opus 5.5, exact, measured 2026-11-13. With the Claude Code prefix mcp__…__ on each tool name: 8.5k. The o200k_base estimate is 4.9k. Counted again when the tool definitions change. Method.
Repository
https://github.com/Nero-Engine/spark-pack-mcp
Website
https://spark-pack.nerolabs.workers.dev/docs
Registry
active, updated 2026-11-13 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.73×.

Tool≈ Claude tokenso200k estimateShare of this server
size_cable2 9591 71035 %
check_grid_connection1 9241 11223 %
check_part_p1 19469014 %
get_certificate_schema80546510 %
check_certificate7944599 %

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