The Pillar

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Find and lease ad windows and city billboards on The Pillar, a 3D tower. Paid monthly on Stripe.

Marketing & SEO

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check_lease Read-only

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 message.

leaseIdstring, required

The leaseId from start_lease

Tools (5)

check_lease

read-only

Argument	Type	Description
leaseId*	string	The leaseId from start_lease

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "leaseId"
  ],
  "properties": {
    "leaseId": {
      "type": "string",
      "maxLength": 80,
      "minLength": 1,
      "description": "The leaseId from start_lease"
    }
  }
}

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 the casino's games: use kind to get only one of them, and maxPrice to cap the monthly price. Any floor, face or spot filter returns tower windows only. Pages hold up to 100 items; when next isn't null, pass it as cursor for the next page.

read-only

Argument	Type	Description
face	string
kind	string	window = on the tower, billboard = in the city around it, casino = the sponsor of one casino game
spot	string	Corner windows cost 35% more
floor	integer	One floor, 1 to 80 (higher floors cost more)
limit	integer	Items per page, 1 to 100 (default 20)
cursor	string	The next value from the previous page
floorMax	integer
floorMin	integer
maxPrice	number	Highest monthly price in US dollars, e.g. 20

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "properties": {
    "face": {
      "enum": [
        "south",
        "east",
        "north",
        "west"
      ],
      "type": "string"
    },
    "kind": {
      "enum": [
        "window",
        "billboard",
        "casino"
      ],
      "type": "string",
      "description": "window = on the tower, billboard = in the city around it, casino = the sponsor of one casino game"
    },
    "spot": {
      "enum": [
        "corner",
        "middle"
      ],
      "type": "string",
      "description": "Corner windows cost 35% more"
    },
    "floor": {
      "type": "integer",
      "maximum": 80,
      "minimum": 1,
      "description": "One floor, 1 to 80 (higher floors cost more)"
    },
    "limit": {
      "type": "integer",
      "maximum": 100,
      "minimum": 1,
      "description": "Items per page, 1 to 100 (default 20)"
    },
    "cursor": {
      "type": "string",
      "maxLength": 20,
      "description": "The next value from the previous page"
    },
    "floorMax": {
      "type": "integer",
      "maximum": 80,
      "minimum": 1
    },
    "floorMin": {
      "type": "integer",
      "maximum": 80,
      "minimum": 1
    },
    "maxPrice": {
      "type": "number",
      "description": "Highest monthly price in US dollars, e.g. 20",
      "exclusiveMinimum": 0
    }
  }
}

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.

read-only

No arguments.

Input schema (JSON)

{
  "type": "object",
  "properties": {}
}

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 review), paused, prize (a game prize, only its winner can lease it) or crown (never sold).

read-only

Argument	Type	Description
id*	string	Window or billboard id, e.g. "F47-S3" or "B-1234"

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "maxLength": 40,
      "minLength": 1,
      "description": "Window or billboard id, e.g. \"F47-S3\" or \"B-1234\""
    }
  }
}

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 within 60 minutes (you can't pay for them, and nothing is charged before they do). No account is needed: the window belongs to the email they pay with. Name, pitch and logo come from the website when left out. Then follow the lease with check_lease. Agents with their own USDC wallet on Base can instead pay for a month themselves with x402 at POST https://thepillar.io/api/v1/leases/x402 (no account; see thepillar.io/developers#x402).

Argument	Type	Description
email	string	Prefills Stripe; the window belongs to the email the person pays with
pitch	string	One line under the name; taken from the website when left out
logoUrl	string	A logo or banner image (https); the website's share image is used when left out
brandUrl*	string	The brand's website (https; a bare domain gets https:// added)
windowId*	string	Slot id from find_windows, e.g. "F47-S3" or "B-1234"
brandName	string	Shown on the window; taken from the website when left out
pricingText	string