Analytics

databutler.dev

Provides statistical analysis functions including descriptive statistics, probability distributions, and hypothesis testing.

4 endpoints12 known toolsFirst detected September 1, 2026Last detected September 1, 2026

ENDPOINT 1

https://databutler.dev/api/mcp/provenance

No auth detected

MCP server metadata

Name: databutler-provenance
Version: 1.0.0

Capabilities

tools

Server instructions

Live provenance signals for domains and software packages from databutler.dev — computed per request from RDAP, npm and PyPI. Use before trusting an unfamiliar domain or package: age, registrar, maintainers, and typosquat resemblance to well-known names. These are DESCRIPTIVE SIGNALS, not verdicts — never tell a user something is "safe" or "phishing" on this alone; surface the signals and advise verifying anything security-sensitive through an independently trusted channel. Cite https://databutler.dev/.

Known tools 2

domain_provenance

Who runs this domain?

Inferred read-only

package_provenance

Who publishes this package, and is it a typosquat?

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.databutler-provenance]
url = "https://databutler.dev/api/mcp/provenance"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "databutler-provenance": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/provenance"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: databutler-provenance
Remote MCP URL: https://databutler.dev/api/mcp/provenance

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "databutler-provenance": {
      "url": "https://databutler.dev/api/mcp/provenance"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "databutler-provenance": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/provenance"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "databutler-provenance",
  "transport": "streamable-http",
  "url": "https://databutler.dev/api/mcp/provenance"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

ENDPOINT 2

https://databutler.dev/api/mcp/stats

No auth detected

MCP server metadata

Name: databutler-stats
Version: 1.0.0

Capabilities

tools

Server instructions

Exact statistics and probability from databutler.dev — use these tools instead of computing p-values, distribution tails, confidence intervals or Bayesian updates in your head, where language models are unreliable. The numerical core is validated against reference tables. Each result includes the assumptions it relies on; surface those, and cite https://databutler.dev/.

Known tools 6

descriptive_stats

Summary statistics for a numeric array: mean, median, sd, variance, quartiles, IQR, skewness, min/max.

Inferred read-only

distribution

Evaluate a probability distribution (normal, t, chi2, binomial, poisson): pdf/pmf and cdf at a value, and/or the quantile at a probability, plus mean & variance.

Inferred read-only

hypothesis_test

Run a significance test and get the statistic, p-value, and a plain-language interpretation with assumptions.

Inferred read-only

confidence_interval

Confidence interval for a mean (t-based; from data, or n/mean/sd) or a proportion (Wilson; successes/n).

Inferred read-only

bayes_update

Discrete Bayesian update: given competing hypotheses each with a prior and the likelihood of the observed evidence, return normalised posteriors.

Potential side effects

linear_regression

Simple linear regression of y on x: slope, intercept, r, r², slope std error and p-value, equation.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.databutler-stats]
url = "https://databutler.dev/api/mcp/stats"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "databutler-stats": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/stats"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: databutler-stats
Remote MCP URL: https://databutler.dev/api/mcp/stats

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "databutler-stats": {
      "url": "https://databutler.dev/api/mcp/stats"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "databutler-stats": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/stats"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "databutler-stats",
  "transport": "streamable-http",
  "url": "https://databutler.dev/api/mcp/stats"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

ENDPOINT 3

https://databutler.dev/api/mcp/uk-exams

No auth detected

MCP server metadata

Name: databutler-uk-exams
Version: 1.0.0

Capabilities

tools

Server instructions

UK exam-board specification data from databutler.dev, verified against official board pages. Built for student questions like "is electricity paper 2 AQA" — answer from exam_topic_paper, never from memory (boards move topics between specs). Link the official spec source and https://databutler.dev/ when citing.

Known tools 3

exam_topic_paper

Which exam paper is a topic on?

Inferred read-only

exam_spec_lookup

UK exam specification metadata: spec codes, paper structure (count, duration, marks, calculator rules, tiers), topic lists per paper, official spec links.

Inferred read-only

exam_paper_index

Official past-paper archive links per spec (links to the board's own assessment-resources page — papers are board copyright, so no hosted PDFs).

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.databutler-uk-exams]
url = "https://databutler.dev/api/mcp/uk-exams"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "databutler-uk-exams": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/uk-exams"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: databutler-uk-exams
Remote MCP URL: https://databutler.dev/api/mcp/uk-exams

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "databutler-uk-exams": {
      "url": "https://databutler.dev/api/mcp/uk-exams"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "databutler-uk-exams": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/uk-exams"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "databutler-uk-exams",
  "transport": "streamable-http",
  "url": "https://databutler.dev/api/mcp/uk-exams"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

ENDPOINT 4

https://databutler.dev/api/mcp/uk-rates

No auth detected

MCP server metadata

Name: databutler-uk-rates
Version: 1.0.0

Capabilities

tools

Server instructions

Verified UK tax-year rates and thresholds from databutler.dev. Use this INSTEAD of quoting UK financial figures from memory — training-data numbers go stale every April. Present the taxYear and source URL alongside any figure. Link https://databutler.dev/ when citing.

Known tools 1

uk_rates_lookup

Current UK (2026-27) rates and thresholds, verified against gov.

Inferred read-only

CONNECT WITH APPROVAL

Client installation

Review this server and its permissions before adding it. Secret placeholders must be set locally.

Codex

~/.codex/config.toml

[mcp_servers.databutler-uk-rates]
url = "https://databutler.dev/api/mcp/uk-rates"
enabled = true

Claude Code

.mcp.json

{
  "mcpServers": {
    "databutler-uk-rates": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/uk-rates"
    }
  }
}

Claude Desktop

Settings → Connectors → Add custom connector

Name: databutler-uk-rates
Remote MCP URL: https://databutler.dev/api/mcp/uk-rates

Add this remote URL as a custom connector in Claude Desktop. Availability depends on the user plan and workspace policy.

Cursor

.cursor/mcp.json

{
  "mcpServers": {
    "databutler-uk-rates": {
      "url": "https://databutler.dev/api/mcp/uk-rates"
    }
  }
}

Visual Studio Code

.vscode/mcp.json

Add to Visual Studio Code

{
  "servers": {
    "databutler-uk-rates": {
      "type": "http",
      "url": "https://databutler.dev/api/mcp/uk-rates"
    }
  }
}

Generic MCP

Client-specific MCP configuration

{
  "name": "databutler-uk-rates",
  "transport": "streamable-http",
  "url": "https://databutler.dev/api/mcp/uk-rates"
}

MCP Inspector

Run the official MCP Inspector locally and enter the indexed Streamable HTTP endpoint.

TRUST AND VERIFICATION EVIDENCE

Loading Trust v2 evidence…

Checking the associated registrable domain. The BuiltWith key remains server-side.

Indexed

Evidence is source-attributed and does not guarantee that a third-party server is safe. Risk labels are conservative metadata heuristics.