last_frame

ffmpeg

Extract the picture from the END of a video as an image — the very last frame, or a chosen number of seconds before the end.

When to use: Making a closing thumbnail, checking how a render finished, or grabbing the final state of a screen recording.
Not for: A frame from the middle or the start (ffmpeg_command with -ss). A moving preview (trim_video).
Returns: A signed download URL for the extracted image.

Parameters

Name	Type	Required	Description
file_url	string	no	Public http(s) URL of the input file (preferred — fetched server-side, so the bytes never pass through your context). Private, loopback and cloud-metadata addresses are blocked.
file_base64	string	no	Base64 of a small inline input file (up to about 15MB). Provide "filename" too.
filename	string	no	Original filename including its extension, e.g. "report.pdf". The extension is how the source format is detected.
offset	number	no	Seconds BEFORE the end to capture. 0 (the default) is the very last frame.
format	string	no	Image format of the extracted frame. (png, jpg, webp)
quality	integer	no	1-100, jpg/webp only. Default 92.
width	integer	no	Optional downscale width in pixels. The frame is never enlarged.

Example call

JSON-RPC tools/call body (sent to https://convertfleet.com/api/mcp):

{
  "jsonrpc": "2.0", "id": 1, "method": "tools/call",
  "params": { "name": "last_frame", "arguments": {
               "file_url": "https://example.com/input"
             } }
}

Connect first

curl -sN https://convertfleet.com/api/mcp \
  -H "Authorization: Bearer flt_YOUR_KEY" \
  -H "Content-Type: application/json" \
  -H "Accept: application/json, text/event-stream" \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/list","params":{}}'

See the quickstarts for Hermes, Claude, Cursor, OpenClaw, n8n, Zapier and Make.