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About honest-mcp

I maintain the honest-mcp family — 13 open-source MCP (Model Context Protocol) servers that let AI clients like Claude, Cursor, and Zed reach real services without a cloud middleman. Every server runs on your own machine and talks directly to the actual service API.

What I build

Polish tooling for JDG owners and accountants — nip-krs-mcp (Biała Lista + KRS), nbp-mcp (NBP FX rates), honest-vies-mcp (EU VAT check with audit-proof consultation number), mbank-parser-mcp (parses mBank CSV fully offline), pl-holidays-mcp (business-day math).

Polish public data — stat-gov-mcp (GUS BDL), nfz-mcp, imgw-mcp, gios-air-mcp.

Local Google alternatives — honest-gmail-mcp, honest-calendar-mcp, honest-drive-mcp. Your OAuth tokens stay on your machine.

Utility — rss-mcp.

Why sponsor

Every repo ships Dependabot, CodeQL, CI matrix on Python 3.10–3.13, secret scanning, and push protection. Your sponsorship funds continued maintenance: dependency bumps, new servers, security reviews, docs, and expanding the Polish tooling stack.

I'm a Warsaw-based developer running skanfirmy.pl with a day job at RTB House. Everything I publish is MIT licensed and free forever — sponsorship is what lets me keep the whole family in sync.

Also available for consulting on Polish tax integrations (KSeF, GUS/NFZ APIs, mBank data), MCP server design, and AI-assisted bookkeeping automation for JDGs and small teams. Reach out: firma@bartosza.pl

@bartosz-kuc

Cover hosting, domains, and monthly maintenance time for the 13 honest-mcp servers — enough to keep the family healthy without dipping into consulting hours.

Featured work

  1. bartosz-kuc/honest-mbank-parser-mcp

    Local MCP server that parses mBank CSV operation exports — fully offline

    Python 1
  2. bartosz-kuc/honest-drive-mcp

    Local MCP server for Google Drive with full permission management — the piece missing from the official connector

    Python
  3. bartosz-kuc/honest-gmail-mcp

    Local MCP server for Gmail — send/search/label with your data staying between your machine and Google

    Python
  4. bartosz-kuc/honest-vies-mcp

    Local MCP server for EU VIES VAT number validator with consultation number for legal audit proof

    Python
  5. bartosz-kuc/honest-nbp-mcp

    Local MCP server for NBP FX rates + gold fixing (Polish accounting-friendly)

    Python
  6. bartosz-kuc/honest-nip-krs-mcp

    Local MCP server for Polish company registries — Biała Lista MF + KRS

    Python

0% towards $50 per month goal

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Select a tier

$ a month

You'll receive any rewards listed in the $5 monthly tier. Additionally, a Public Sponsor achievement will be added to your profile.

$5 a month

Select

Coffee tier ☕

Buy me a coffee to keep the honest-mcp servers maintained and audited.

  • Sponsor badge on your GitHub profile
  • Warm gratitude in my heart

$25 a month

Select

Supporter tier 🥗

Support serious ongoing maintenance and the family's expansion.

  • Sponsor badge on your GitHub profile
  • Your name/handle listed in SPONSORS.md across the honest-mcp family
  • Priority email response for feature requests and questions

$100 a month

Select

Backer tier 🏆

For teams and companies using honest-mcp in production.

  • Sponsor badge on your GitHub profile
  • Your logo/name featured in the honest-mcp family index README
  • Direct email line for support and roadmap input
  • Priority on Polish-specific integration requests (KSeF, KRS, JDG workflows)

$500 a month

Select

Retainer tier 💼

For companies that want a light consulting retainer alongside sponsorship.

  • Everything from the Backer tier
  • ~2h/month of consulting availability for custom integrations, code review, or Polish tax-integration questions
  • Direct Slack/email channel with priority response (24h target on business days)
  • Roadmap input on Polish tooling priorities (CEIDG, ZUS, EPUAP, etc.)

Contact firma@bartosza.pl for scope details before subscribing.