MCP.Market

Databutler Tax MCP server

online · 100% uptime
by physics-star-cat·io.github.physics-star-cat/databutler-tax·v1.0.0
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Take-home pay after tax and social contributions for nine countries, with tax year.

B81/100grade B
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Safety scan
B81/100

full report

Adoption
Growing

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If you have run it, two minutes of your experience saves the next person an afternoon.

Databutler Tax tools (1, 1 write)

write = sends, deletes, buys or posts
  • take_home_paywrite actionFree

    Net salary after income tax and social contributions for an employee in one of ten countries (uk, us, ca, au, in, br, pl, fr, de, es), computed live by the LifeByNumbers salary calculators (same operator). Takes a gross salary in local currency (annual by default, or monthly with period) and a country code, plus optional state and filingStatus for the US, province for Canada, region (england|scotland) for the UK. Returns gross, net and total deductions (each annual and monthly), a line-by-line breakdown typed as tax / social / contribution / repayment, effectiveRate, the tax year the figures apply to, currency, the assumptions behind the estimate and the upstream calculator page as source. Spain (es) is listed but answers covered:false because lifebynumbers.net computes it client-side only.

Public scan report

scanner v0.1.10 · 2026-10-14 · same rubric, same numbers if you re-run it

1 high
  • –Code scanremote-only server, no package to scann/a
  • Live reliabilityremote reachable in 163ms20/20
  • Tool poisoning1 tool descriptions checked15/15
  • Auth qualityopen endpoint exposes 1 write-action tools with no auth3/15
  • Maintenancelast push 1 days ago15/15
  • Maintainer identityregistry namespace matches repository owner; GitHub account older than a year8/10

Findings (1)

  • highWrite-action tools reachable without authenticationauth.open-write
Overall 81/100. Components that don't apply are left out of the denominator. Any critical finding is an F.RubricAppeal a findingJSON

How Databutler Tax compares

Against every graded MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
81/100
higher than 62% of 48,255 servers
Tools
1
the typical server has 7
Tools that change things
100%
typical: 0%. Fewer write tools means less an agent can break
Uptime
100%
of our recent checks; the typical remote server answers 100%
Response time
24 ms
faster than 96% of 30,031 servers

What its tools let an agent do: 1 change

Install Databutler Tax in Claude Code, Cursor or VS Code

claude mcp add --transport http databutler-tax https://databutler.dev/api/mcp/tax
Add to Cursor

What the publisher says

From the Databutler Tax repository's README, as published. We do not edit it. Read it on GitHub

Data Butler (databutler.dev)

An agent honeypot: clean, verified UK public data served to AI agents via MCP and REST. Not an SEO play — no GSC ambitions. The customer is an AI assistant answering a human's question; the product is being the source that is right, with provenance on every number.

Vercel default databutler.vercel.app works, but registry listings must NOT be published until the final domain is live — listings bake in URLs).

  • Planned domain: databutler.dev (until purchased/connected, the

MCP serving, domain attached, listed on Smithery (drchriseames/databutler-uk-exams, -uk-rates) and the official MCP Registry (io.github.physics-star-cat/databutler-uk-exams, -uk-rates). Tracking LIVE (GA4 property 552213153, verified in realtime; monitored by webmon 🤖 column). PulseMCP will auto-ingest from the official registry. Front door POST /api/mcp — built 2026-09-01 on branch feat/front-door; listing as io.github.physics-star-cat/databutler / Smithery drchriseames/databutler pending deploy.

  • Status: LIVE (launched 2026-08-31): https://databutler.dev — REST +

lowriskquotes.com (Monte Carlo) — full history in ../docs/AUDIT2026-08-30five-sites.md §3b–3e and ../docs/MONETISATION-DECISION.md.

  • Born 2026-08-31 out of the agent-API work on whatbreaks.uk (MOT data) and

The model (one brand, many focused servers)

There is no domain authority in MCP registries — discovery is per-listing. So this is NOT one mega-server (tool-list bloat kills those); it is one domain/repo/brand hosting separate, focused MCP endpoints, each listed individually under one namespace, cross-referencing each other:

Front door (2026-09): POST /api/mcp lists the five high-frequency tools directly plus whatchangedsince, coverage, catalogue, call. It is still not a mega-server — everything else stays behind call, capped at 9 listed tools by test. The focused servers remain live and listed.

The roadmap is ordered by (value to an AI agent) × (likelihood we can build it well). It deliberately includes the maintainer-Claude wishlist — this product is designed with Claude as the end user, by Claude:

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

Databutler Tax: common questions

Is Databutler Tax MCP server safe?
Mostly: it is graded B (81/100). Read the Databutler Tax safety report
How do I install Databutler Tax?
It runs remotely at databutler.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does Databutler Tax need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is Databutler Tax maintained?
The last commit was 22 days ago (2026-10-13). The latest release is v1.0.0.
Is Databutler Tax up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
How does Databutler Tax compare with other MCP servers?
safety score 81/100 (higher than 62% of 48,255 servers); tools 1 (the typical server has 7); tools that change things 100% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.

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