Signal Desk paid tools

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io.github.huntercarver24/signal-deskv1.0.0 GitHub verified

x402-paid tools: render a web page to markdown/PNG/PDF, host a file at a URL, call a URL later

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Call this server's tools from your browser. Nothing to install.

https://x402-mcp.huntercarver24.workers.dev/mcp

Requests go through mcptry because browsers can't call most MCP servers directly. Header values are sent to the server for that request only and are never stored or logged.

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host_file

Hosts a file: upload up to 10 MB as base64 with its content type and get back a public download URL that serves the bytes with that content type for 1 to 168 hours (default 24). Downloads are free, readable at once where uploaded and everywhere within about a minute. Executables are refused; HTML and SVG are served as attachments. A failed upload is not charged. Price: $0.01 per call in USDC (x402).

datastring, required

The file, base64 (standard or URL-safe alphabet). Up to 10485760 bytes decoded.

contentTypestring, required

MIME type the file is served with, e.g. image/png or application/pdf. Executable types are refused; text/html and image/svg+xml are served as attachments.

filenamestring

Suggested download name. Never used as the storage key.

ttlHoursinteger

Hours the download URL keeps working, default 24.

This tool isn't marked read-only, so it may change something on the server or in an account you connected.

I understand, run it anyway

Tools (3)

host_file

Argument	Type	Description
data*	string	The file, base64 (standard or URL-safe alphabet). Up to 10485760 bytes decoded.
filename	string	Suggested download name. Never used as the storage key.
ttlHours	integer	Hours the download URL keeps working, default 24.
contentType*	string	MIME type the file is served with, e.g. image/png or application/pdf. Executable types are refused; text/html and image/svg+xml are served as attachments.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "data",
    "contentType"
  ],
  "properties": {
    "data": {
      "type": "string",
      "minLength": 1,
      "description": "The file, base64 (standard or URL-safe alphabet). Up to 10485760 bytes decoded."
    },
    "filename": {
      "type": "string",
      "maxLength": 128,
      "minLength": 1,
      "description": "Suggested download name. Never used as the storage key."
    },
    "ttlHours": {
      "type": "integer",
      "maximum": 168,
      "minimum": 1,
      "description": "Hours the download URL keeps working, default 24."
    },
    "contentType": {
      "type": "string",
      "pattern": "^[A-Za-z0-9!#$&^_.+-]+\\/[A-Za-z0-9!#$&^_.+-]+",
      "maxLength": 128,
      "description": "MIME type the file is served with, e.g. image/png or application/pdf. Executable types are refused; text/html and image/svg+xml are served as attachments."
    }
  },
  "additionalProperties": false
}

render_page

Renders a public web page in a real headless browser (JavaScript runs, redirects are followed) and returns it as clean markdown, a PNG screenshot or a PDF. One call, one payment, no account. A render that fails is not charged. Price: $0.01 per call in USDC (x402).

read-only

Argument	Type	Description
url*	string	Public http(s) page to render. Private, local and cloud-metadata addresses are refused.
width	integer	Viewport width in px, default 1280.
format	string	markdown: the page's main content as text. screenshot: a PNG image. pdf: a PDF document.
height	integer	Viewport height in px, default 800.
fullPage	boolean	screenshot: capture the whole page, up to 8000px tall.
selector	string	CSS selector. markdown: convert only that element. screenshot: capture only that element.
pdfFormat	string	pdf: paper size, default A4.
timeoutMs	integer	Navigation timeout, default 15000.

schedule_callback

Schedules a delayed HTTP callback: give a public URL, an optional JSON body, optional headers and a delay of 60 seconds to 7 days (or an absolute time), and the URL is called at that time (POST when a body was given, otherwise GET), with one retry and a 10-second timeout. The answer carries a free status URL that reports whether it fired and what the callee answered. A request that is refused is not charged. Price: $0.005 per call in USDC (x402).

Argument	Type	Description
at	string	Absolute time with a timezone, e.g. 2026-10-28T15:00:00Z, 60 seconds to 7 days ahead. Give this or delaySeconds, not both.
url*	string	Public http(s) URL to call. Private, local and cloud-metadata addresses are refused, when scheduled and again when fired. Redirects are reported, not followed.
body	any	Any JSON value. Present: the callback is a POST with this as its JSON body (up to 65536 bytes). Absent: a GET.
headers	object	Extra request headers, up to 16, printable ASCII values up to 1024 characters. host, content-length and connection-level headers are refused.
delaySeconds	integer	Seconds from now, 60 to 604800. Give this or at, not both.

Input schema (JSON)

{
  "type": "object",
  "$schema": "http://json-schema.org/draft-07/schema#",
  "required": [
    "url"
  ],
  "properties": {
    "at": {
      "type": "string",
      "description": "Absolute time with a timezone, e.g. 2026-10-28T15:00:00Z, 60 seconds to 7 days ahead. Give this or delaySeconds, not both."
    },
    "url": {
      "type": "string",
      "format": "uri",
      "description": "Public http(s) URL to call. Private, local and cloud-metadata addresses are refused, when scheduled and again when fired. Redirects are reported, not followed."
    },
    "body": {
      "description": "Any JSON value. Present: the callback is a POST with this as its JSON body (up to 65536 bytes). Absent: a GET."
    },
    "headers": {
      "type": "object",
      "description": "Extra request headers, up to 16, printable ASCII values up to 1024 characters. host, content-length and connection-level headers are refused.",
      "additionalProperties": {
        "type": "string"
      }
    },
    "delaySeconds": {
      "type": "integer",
      "maximum": 604800,
      "minimum": 60,
      "description": "Seconds from now, 60 to 604800. Give this or at, not both."
    }
  },
  "additionalProperties": false
}