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The Pillar MCP server

Which MCP servers are The Pillar'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 2026-10-24

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Whose server it is
  • Registry nameio.thepillar/pillarverified in the MCP registry

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

When we asked itchecked 2026-10-24
  • Stateanswerschecked 2026-10-24
  • Tools5
  • Server calls itselfpillar
  • Server version1.0.0
  • Protocol version2025-06-18

On 2026-10-24 the server answered initialize and tools/list without a sign-in. First answer in 65 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: light a tower window with your company logo and link; rent a city billboard for a monthly advertising period.
  • Checked on 4 of the 7 days it takes to judge reliability.

Once connected

  • For "light a tower window with your company logo and link", the likely first call is find_windows.
  • For "rent a city billboard for a monthly advertising period", the likely first call is find_windows.

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: 4, the first on 2026-10-24
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 4 so far
  • What an agent can do with it2 of 2 use cases
  • Answeredmeasuring4 of the 7 daily checks it takes to print a share
  • Median first answer155 ms
  • Space in an agent's context≈ 1,146 tokensthe definitions of all its tools (5), which an agent carries on every turn
  • Tool definitionsA · 97 of 100
  • Typed results5 of 5 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 1 of 5

What an agent can do with it

  • can do · light a tower window with your company logo and link
  • can do · rent a city billboard for a monthly advertising period
  • not sure · sponsor a casino game inside the browser game

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 offers5 tools · read 2026-10-24
  • find_windows

    List the free ad windows on the tower, the free city billboards and the free casino game sponsorships, with monthly prices. Tower windows come first (floor 1 up, the cheapest floors first), then billboards (the most prominent first), then…

  • get_window

    One window or billboard by id ("F47-S3" is floor 47, south face, column 3; "B-1234" is a city billboard): its monthly price and whether it can be leased now. When it can't, reason says why: taken (lit by a brand), reserved (paid, in…

  • get_prices

    Every floor's monthly price for a middle and a corner window, and the price range of city billboards, in US cents. The listed price is exactly what Stripe charges.

  • start_lease

    Start leasing a free window or billboard for a brand. The ad (website, name, pitch, logo) is checked first; a refused ad costs nothing. Returns checkoutUrl and leaseId: give checkoutUrl to the person, who pays the monthly price on Stripe…

  • check_lease

    Where a lease stands: awaiting_payment, in_review (paid, a person checks it first), live, refused (nothing charged), rejected_refunded, refunded (the slot was taken while paying), expired (the link ran out unpaid) or ended, with a plain…

How to connect

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

{
  "mcpServers": {
    "pillar": {
      "type": "http",
      "url": "https://thepillar.io/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http thepillar https://thepillar.io/mcp

Add to CursorAdd to VS Code

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

OpenAPI spec

6 paths, read 2026-10-24. Open the spec ↗

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.