io.github.lfhillesheim/contai-mcp-server
Contaí — Calculadoras Fiscais Brasileiras
32 ferramentas MCP de cálculo fiscal/trabalhista BR (CLT, INSS, IRRF, PJ, finanças, saúde).
alive probed 2026-10-15
32tools
17ktokens in Claude Opus 5.5
17ktokens in Claude Code
8.5 %of a 200k context window
9.9ko200k_base estimate
253 msto initialize
6 msto list tools
- Run it
- npx -y @contai-evoluke/mcp-server@0.5.1 (stdio, probed in a container with the network off)
- Host
- npmjs.com
- Reports itself as
- contai 0.5.0
- Capabilities
- tools
- Instructions
- none
- Claude count
- Claude Opus 5.5, measured 2026-10-15. Counted again when the tool definitions change. Method.
- Repository
- https://github.com/lfhillesheim/calculadora
- Website
- https://calculas.com.br
- Registry
- active, updated 2026-04-30 · registry entry
- Reachable
- 1 of the last 1 probe
Most expensive tools
| Tool | Tokens (o200k) | Share of this server |
|---|---|---|
| decisao_clt_vs_pj | 596 | 6 % |
| calcular_rescisao_clt | 412 | 4 % |
| calcular_simples_nacional | 411 | 4 % |
| calcular_simulador_aposentadoria | 410 | 4 % |
| calcular_irpf_restituicao | 406 | 4 % |
Badge and feed
[](https://mcpcost.ulehla.dev/s/io.github.lfhillesheim/contai-mcp-server)
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.