mcpcost

io.github.adlai88/simmer-mcp

Simmer

Is the Simmer MCP server down? No. It answered initialize and tools/list in the probe of 2026-10-31.

Trade prediction markets with AI agents — skill discovery, autoresearch, and execution.

alive probed 2026-11-15 · unchanged since 2026-10-31

29tools
17ktokens in Claude Opus 5.5
8.4 %of Claude's 200k window
6.7×the median server
429 msto initialize
21 msto list tools
Run it
npx -y simmer-mcp@3.3.2 (stdio, probed in a container with the network off)
Host
npmjs.com
Reports itself as
simmer-mcp 3.3.2
Capabilities
tools
Instructions
none
Of a 1M window
1.7 % of a 1M context window
Count
17k tokens in Claude Opus 5.5, exact, measured 2026-10-17. With the Claude Code prefix mcp__…__ on each tool name: 17k. The o200k_base estimate is 9.3k. Counted again when the tool definitions change. Method.
Repository
https://github.com/SpartanLabsXyz/simmer-sdk
Website
https://simmer.markets
Registry
active, updated 2026-05-24 · registry entry

Most expensive tools

The Claude column scales the o200k estimate of each tool by this server's ratio of exact to estimate, 1.80×.

Tool≈ Claude tokenso200k estimateShare of this server
simmer_polymarket_weather_trader1 4377989 %
simmer_polymarket_fast_scaler1 0395776 %
simmer_polymarket_fast_loop9565316 %
simmer_polymarket_market_maker9375206 %
simmer_kalshi_weather_trader9175095 %

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mcpcost: alive

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

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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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