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Which MCP servers are Noah's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-10-31

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Whose server it is
  • Registry nametech.noahsarch/business-day-oracleverified in the MCP registry

The registry name sits under noahsarch.tech. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-10-31
  • Stateanswerschecked 2026-10-31
  • Tools8
  • Server calls itselfbusiness-day-oracle
  • Server version0.1.0
  • Protocol version2025-06-18

On 2026-10-31 the server answered initialize and tools/list without a sign-in. First answer in 874 ms.

Should an agent connect itSkip it
  • Its tools do none of the product's use cases we checked: Chat with PDF and Word document collections; Redact names and phones before cloud AI calls.
  • Checked on 2 of the 7 days it takes to judge reliability.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 2, the first on 2026-10-31
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • What an agent can do with it0 of 2 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer922 ms
  • Space in an agent's context≈ 5,737 tokensthe definitions of all its tools (8), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results8 of 8 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

What an agent can do with it

  • not sure · Ask databases questions in Arabic or English
  • cannot · Chat with PDF and Word document collections
  • cannot · Redact names and phones before cloud AI calls

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers8 tools · read 2026-10-31
  • is_working_day

    Say whether a date is a working day in a country/subdivision or market, and why not (weekend, holiday name, holiday observed, projected lunar holiday). Example: date '2027-03-10', country 'SA'. Calendar selection: country (ISO 3166-1…

  • add_working_days

    Move N working days from a date, skipping weekends and holidays; returns the end date and every skipped day with its reason. Delivery promises, SLA clocks, payment terms in business days. Example: start_date '2026-12-23', days 5, country…

  • working_days_between

    Count working days between two dates with endpoint control; lists the non-working days. Leave cost, lateness, elapsed business days. Example: '2026-05-18' → '2026-06-05', country 'AE', inclusive 'both'. Calendar selection: country (ISO…

  • roll_date

    Apply a business-day convention (following, modified following, preceding, modified preceding) to a date on a country or market calendar — payment dates, coupon dates, settlement, SLA due dates. Example: date '2026-05-31', convention…

  • compute_deadline

    Compute the end of a period ('within 30 calendar days', '10 working days', '3 months') from a start date under explicit counting rules, roll it by the chosen convention when it lands on a non-working day, and return raw vs final deadline…

  • list_holidays

    All holidays of a year for a country/subdivision/categories or a market, each with local and English names, whether it is observed/shifted, projected (lunar), on a weekend, and whether it counts as non-working. Example: year 2027, country…

  • next_holiday

    The next N holidays on or after a date with days_until and projection flags. Example: from_date '2026-11-01', country 'JP', count 3. Calendar selection: country (ISO 3166-1 alpha-2, e.g. 'SA', 'DE', 'US') or market (MIC, e.g. 'XNYS'…

  • list_calendars

    Discover calendars: without arguments, all 250 countries and 30 markets; with a country code, its legal weekend, subdivision codes, holiday categories, languages, year range and public sources. Free. Example: country 'US'. Response…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "business-day-oracle": {
      "type": "http",
      "url": "https://bizday.noahsarch.tech/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http noahsarch https://bizday.noahsarch.tech/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://bizday.noahsarch.tech/mcp as a custom connector in the settings.

Other servers listed as Noah's
  • tech.noahsarch/einvoice-preflightanswers, 7 toolsverified in the MCP registry
  • tech.noahsarch/email-verifieranswers, 5 toolsverified in the MCP registry
  • tech.noahsarch/hr-payroll-oraclenot asked yetverified in the MCP registry
  • tech.noahsarch/id-format-oraclenot asked yetverified in the MCP registry
  • tech.noahsarch/sanctions-screenernot asked yetverified in the MCP registry
  • tech.noahsarch/text-number-toolkitnot asked yetverified in the MCP registry
  • tech.noahsarch/uae-calendar-oraclenot asked yetverified in the MCP registry
  • tech.noahsarch/website-contact-extractornot asked yetverified in the MCP registry

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.