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Opa Haardhout MCP server

Which MCP servers are Opa Haardhout'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 2026-11-03

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Whose server it is
  • Registry namenl.opahaardhout/opahaardhoutverified in the MCP registry

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

When we asked itchecked 2026-11-03
  • Stateanswerschecked 2026-11-03
  • Tools5
  • Server calls itselfopahaardhout
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-11-03 the server answered initialize and tools/list without a sign-in. First answer in 479 ms.

Should an agent connect itNot proven either way yet
  • Whether its tools do the product's job has not been judged yet.
  • Checked on 1 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: 1, the first on 2026-11-04
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 1 so far
  • Answeredmeasuring1 of the 7 daily checks it takes to print a share
  • Median first answer521 ms
  • Space in an agent's context≈ 2,219 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsA · 100 of 100
  • Typed results5 of 5 toolsdeclared outputSchema: results come typed, read once
  • Every tool passes all six checks.

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 offers5 tools · read 2026-11-03
  • zoek_aanbieders

    NL: Zoek haardhout-aanbieders in Nederland (563 in de index). Filter op zoektekst, plaats, provincie, houtsoort, vorm, droging en bezorging. Geef een postcode óf lat+lng mee om op afstand te sorteren (voegt afstandKm toe), en optioneel…

  • aanbieder_details

    NL: Haal het volledige publieke profiel van één haardhout-aanbieder op met slug: aanbod, prijslijst, contactgegevens (telefoonnummer afgeschermd, laatste twee cijfers **), beoordelingen en foto's. Gebruik zoek_aanbieders om de slug te…

  • houtprijzen

    NL: Richtprijzen voor haardhout in euro per m³, per houtsoort en voor de markt als geheel — apart voor lokale/particuliere verkopers en voor webshops/handel, want die twee markten verschillen fors. Elke band geeft mediaan, p25, p75, min…

  • houtsoort_info

    NL: Brandprofielen en stooktips per houtsoort: warmte, brandduur, droogtijd, brandwaarde (kWh/kg), vonkvorming, rook en waarvoor de soort geschikt is. Zonder argument krijg je alle soorten; met houtsoort één profiel. Voor prijzen: gebruik…

  • meld_gebruik

    NL: Na het beantwoorden van je gebruiker: meld optioneel welke vermeldingen relevant waren — je krijgt er de actualiteitsstatus van die vermeldingen voor terug. Concreet krijg je per gemelde slug: naam, wanneer we die aanbieder voor het…

How to connect

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

{
  "mcpServers": {
    "opahaardhout": {
      "type": "http",
      "url": "https://opahaardhout.nl/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http opahaardhout https://opahaardhout.nl/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://opahaardhout.nl/api/mcp as a custom connector in the settings.

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.