File Relay

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io.github.yjq001/file-relayv1.0.0

Temporary file relay for AI agents: upload a generated file, get an expiring download link.

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

https://code.easyllms.com/relay/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.

Tool list from our last check. Connect live to refresh it.

create_upload_link

Relay a file of any size up to 100 MB. Save the file to local disk first, call this with its path, then run the returned curl command in your shell to upload it. The download link works as soon as the upload finishes. Requires outbound network access to code.easyllms.com; if curl is blocked, ask the user to allow that domain in their sandbox network settings (on claude.ai: Settings > Capabilities > Code execution).

pathstring, required

Local path of the file you saved, e.g. /tmp/report.pdf. Used to build the curl command.

filenamestring

Optional name shown to the downloader; defaults to the file name in path.

ttl_hoursnumber

Hours until the download link expires. Default 24, maximum 168 (7 days).

content_typestring

Optional MIME type; guessed from the extension otherwise.

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

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Tools (5)

create_upload_link

Argument	Type	Description
path*	string	Local path of the file you saved, e.g. /tmp/report.pdf. Used to build the curl command.
filename	string	Optional name shown to the downloader; defaults to the file name in path.
ttl_hours	number	Hours until the download link expires. Default 24, maximum 168 (7 days).
content_type	string	Optional MIME type; guessed from the extension otherwise.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "path"
  ],
  "properties": {
    "path": {
      "type": "string",
      "description": "Local path of the file you saved, e.g. /tmp/report.pdf. Used to build the curl command."
    },
    "filename": {
      "type": "string",
      "description": "Optional name shown to the downloader; defaults to the file name in path."
    },
    "ttl_hours": {
      "type": "number",
      "maximum": 168,
      "minimum": 0.1,
      "description": "Hours until the download link expires. Default 24, maximum 168 (7 days)."
    },
    "content_type": {
      "type": "string",
      "description": "Optional MIME type; guessed from the extension otherwise."
    }
  },
  "additionalProperties": false
}

delete_file

Delete a relayed file before it expires. Requires the delete_token returned at upload.

destructive

Argument	Type	Description
id*	string	File id or download URL.
delete_token*	string	delete_token returned at upload.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "id",
    "delete_token"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "File id or download URL."
    },
    "delete_token": {
      "type": "string",
      "description": "delete_token returned at upload."
    }
  },
  "additionalProperties": false
}

get_file_info

Look up a relayed file by id or download URL: name, size, type, expiry and download link.

read-only

Argument	Type	Description
id*	string	File id or download URL returned by an upload tool.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "File id or download URL returned by an upload tool."
    }
  },
  "additionalProperties": false
}

read_file

Read a relayed file's content (up to 1 MB) so an agent can pick up a file someone else relayed. Text comes back as text, images as images, other files as base64.

read-only

Argument	Type	Description
id*	string	File id or download URL from this relay.

Input schema (JSON)

{
  "type": "object",
  "required": [
    "id"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "File id or download URL from this relay."
    }
  },
  "additionalProperties": false
}

relay_attached_file

ChatGPT only: relay a file from the conversation (the host passes it as a file reference) and get a temporary download link.

Argument	Type	Description
file*	object	File reference provided by the host.
filename	string	Optional file name override.
ttl_hours	number	Hours until the download link expires. Default 24, maximum 168 (7 days).

Input schema (JSON)

{
  "type": "object",
  "required": [
    "file"
  ],
  "properties": {
    "file": {
      "type": "object",
      "required": [
        "download_url"
      ],
      "properties": {
        "file_id": {
          "type": "string"
        },
        "file_name": {
          "type": "string"
        },
        "mime_type": {
          "type": "string"
        },
        "download_url": {
          "type": "string"
        }
      },
      "description": "File reference provided by the host."
    },
    "filename": {
      "type": "string",
      "description": "Optional file name override."
    },
    "ttl_hours": {
      "type": "number",
      "maximum": 168,
      "minimum": 0.1,
      "description": "Hours until the download link expires. Default 24, maximum 168 (7 days)."
    }
  },
  "additionalProperties": false
}