io.github.mcpwright/soi-mcp

IRS SOI (income by ZIP)

IRS income & tax stats by ZIP in your agent: AGI distribution, tax, credits, deductions.

alive probed 2026-10-14

10tools

2.9ktokens in Claude Opus 5.5

3.0ktokens in Claude Code

1.4 %of a 200k context window

1.7ko200k_base estimate

2.3 sto initialize

12 msto list tools

Run it: uvx mcpwright-soi==0.1.2 (stdio, probed in a container with the network off)
Host: pypi.org
Reports itself as: soi 1.30.0
Capabilities: experimental, prompts, resources, tools
Instructions: 2 128 characters
Claude count: Claude Opus 5.5, measured 2026-10-14. Counted again when the tool definitions change. Method.
Repository: https://github.com/mcpwright/soi-mcp
Registry: active, updated 2026-08-20 · registry entry
Reachable: 1 of the last 1 probe

Most expensive tools

Tool	Tokens (o200k)	Share of this server
get_soi_field	231	13 %
compare_zips	226	13 %
get_agi_distribution	206	12 %
get_income	187	11 %
get_credits	180	10 %

Badge and feed

[![mcpcost](https://mcpcost.ulehla.dev/badge/io.github.mcpwright/soi-mcp.svg)](https://mcpcost.ulehla.dev/s/io.github.mcpwright/soi-mcp)

An entry for every probe that changed the result, the tool count or the token cost: Atom feed. Add it to a feed reader or a Slack RSS app to hear when the server stops answering or its tool set grows.