Context — ctxt.io

Share text, markdown, code, or HTML as an auto-expiring ctxt.io link. For visual output (styled reports, tables, charts, diagrams) prefer format=html with self-contained HTML: inline CSS and inline SVG render fully; <script> is stripped server-side and JavaScript never runs, so keep it static. Free expiries: 5m, 30m, 1h (default), 8h, 1d — these return the share URL immediately. ttl=30d and the Pro options (name, password) cost $1 one-time: the link is created in a pending state and the result includes a payment_url a human can open in a browser to complete checkout (platforms enrolled for agentic payments receive an acp block instead and can pay programmatically); until payment the link lives 1 day without Pro features. Anyone with the link can read it. The returned delete_token authorizes deletion via delete_context — keep it private.

{
  "type": "object",
  "properties": {
    "content": {
      "description": "The content to share (max 4MB).",
      "type": "string"
    },
    "format": {
      "default": "text",
      "description": "How to render the content: text (verbatim), markdown (rendered rich), code (syntax highlighted), or html (sanitized and rendered — best for visual output; inline CSS/SVG work, scripts are stripped).",
      "enum": [
        "text",
        "markdown",
        "code",
        "html"
      ],
      "type": "string"
    },
    "lang": {
      "description": "With format=code: the language to highlight (e.g. python, javascript, diff). Omit to auto-detect.",
      "type": "string"
    },
    "name": {
      "description": "Pro, ttl=30d only: human-readable name appended to the URL as a slug.",
      "type": "string"
    },
    "password": {
      "description": "Pro, ttl=30d only: password required to read the link. Access control, not encryption — content is plaintext at rest.",
      "type": "string"
    },
    "ttl": {
      "default": "1h",
      "description": "How long the link stays readable. 5m–1d are free; 30d costs $1.",
      "enum": [
        "5m",
        "30m",
        "1h",
        "8h",
        "1d",
        "30d"
      ],
      "type": "string"
    }
  },
  "required": [
    "content"
  ]
}

{
  "type": "object",
  "properties": {
    "acp": {
      "description": "Present when this deployment accepts Agentic Commerce Protocol payments: checkout_endpoint + item_id let an enrolled agent platform complete the $1 purchase without a browser.",
      "type": "object"
    },
    "current_ttl_seconds": {
      "type": "integer"
    },
    "delete_token": {
      "description": "Short creator token: authorizes delete_context, and appended to the share URL as ?t=<delete_token> it unlocks delete/upgrade in a browser — keep it private.",
      "type": "string"
    },
    "expires_at": {
      "type": "string"
    },
    "html_url": {
      "type": "string"
    },
    "json_url": {
      "type": "string"
    },
    "manage_url": {
      "description": "The share URL with ?t=<delete_token> already appended: opening it in a browser unlocks delete/upgrade for this link — share it only with the link's owner.",
      "type": "string"
    },
    "markdown_url": {
      "type": "string"
    },
    "paid_ttl_seconds": {
      "type": "integer"
    },
    "payment_url": {
      "type": "string"
    },
    "pending_payment": {
      "type": "boolean"
    },
    "text_url": {
      "type": "string"
    },
    "url": {
      "type": "string"
    },
    "x402": {
      "description": "Present when this deployment accepts x402 payments: any agent with an x402 wallet can pay the $1 via the upgrade_context tool — no enrollment.",
      "type": "object"
    }
  },
  "required": [
    "url",
    "markdown_url",
    "text_url",
    "json_url",
    "html_url",
    "expires_at",
    "current_ttl_seconds",
    "pending_payment",
    "delete_token",
    "manage_url"
  ]
}

Fetch the content of an existing ctxt.io link. Accepts a full ctxt.io URL, a /3/<code> path, or a bare code. Password-protected links need the password argument.

{
  "type": "object",
  "properties": {
    "format": {
      "default": "markdown",
      "description": "Representation to return.",
      "enum": [
        "markdown",
        "text",
        "html"
      ],
      "type": "string"
    },
    "password": {
      "description": "Password for protected links.",
      "type": "string"
    },
    "url_or_key": {
      "description": "Full ctxt.io URL, /3/<code> path, or bare code.",
      "type": "string"
    }
  },
  "required": [
    "url_or_key"
  ]
}

{
  "type": "object",
  "properties": {
    "content": {
      "type": "string"
    },
    "created": {
      "type": "string"
    },
    "expires_at": {
      "type": "string"
    },
    "ttl_seconds": {
      "type": "integer"
    }
  },
  "required": [
    "content",
    "ttl_seconds",
    "created",
    "expires_at"
  ]
}

Delete a ctxt.io link you created. Requires the delete_token returned by create_context. Immediately removes public access and requests backing-storage deletion. Destructive and not undoable — confirm with the user before calling.

{
  "type": "object",
  "properties": {
    "delete_token": {
      "description": "The delete_token from create_context.",
      "type": "string"
    },
    "url_or_key": {
      "description": "Full ctxt.io URL, /3/<code> path, or bare code.",
      "type": "string"
    }
  },
  "required": [
    "url_or_key",
    "delete_token"
  ]
}

{
  "type": "object",
  "properties": {
    "deleted": {
      "type": "boolean"
    }
  },
  "required": [
    "deleted"
  ]
}