Native Mac video editor your agent can drive: 83 timeline tools, media stays on your Mac.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
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Manual Client & Custom JSON ConfigExpand JSON ▾
Client Config & Setup
Choose your client or environment
Target File:
💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Documentation Overview
klo-mcp: the video editing MCP server
Give your coding agent a real video editor.
klo is a native macOS video editor you talk to. This is its MCP server: Claude Code, Codex, Cursor, Claude Desktop, or any MCP client can drive the whole timeline, with 83 tools, while your footage never leaves your Mac.
- A real editor underneath. Not an ffmpeg wrapper: ripple edits, word-gap cuts, karaoke captions, color grades, generated music, ProRes export. Every edit lands on a normal timeline a human can open and adjust.
- Media stays local. Piping video bytes through a text protocol fails (base64 versus context windows). klo holds the media on your machine and exposes semantic timeline operations instead. The agent sends intent and gets back compact results: timecodes, transcripts, real frames when it needs to look.
- Local, token-gated, off by default. The server listens on
127.0.0.1only, requires a bearer token, and does nothing until you turn it on in klo's settings.
Quickstart
- Get klo for Mac (free tier included, macOS 13+).
- In klo: Settings → Connections, turn the connection on, and copy the URL and token it shows.
- Connect your client:
Claude Desktop (one click)
Download klo.mcpb and open it. Done.
Claude Code
Use the exact URL shown in klo's settings (the port can differ if 41720 is taken).
Cursor, Codex, and other MCP clients
Either point the client at the HTTP endpoint above, or use this package as a stdio server:
What your agent can do
Ask in plain language, or call tools directly. A few real prompts:
- "Cut the boring parts and the filler words, then caption it word by word."
- "Watch this folder and turn every new recording into a captioned vertical clip."
- "Pick the best take of each line from the transcript and assemble the cut."
- "Grade everything to match this reference and export ProRes for the client."
The 83 tools
| group | tools |
|---|---|
| library | get_project_state, get_media_library, import_media, import_from_url, relink_to_sources, list_files, new_project |
| timeline | add_media_to_timeline, assemble_cut, insert_at, move_clip, split_clip, split_audio, trim_clip, delete_clips, ripple_delete, close_gaps, separate_audio, unlink_clip, link_clips, replace_audio, add_marker, set_in_out, set_track_lock, seek, verify_timeline |
| project | set_canvas_ratio, set_frame_rate, set_brand_kit |
| cuts | add_transition, remove_transition, preview_cut, generate_transition, refine_transition |
| type | add_text, update_text, add_captions_from_transcript, list_text_styles, list_fonts, search_fonts, use_font |
| motion | list_motion_templates, create_motion_clip, update_motion_clip |
| color | set_clip_grade, add_clip_effect, update_clip_effect, remove_clip_effect, list_luts, import_lut, set_clip_opacity, set_clip_blend |
| frame | set_clip_transform, set_clip_speed |
| audio | set_clip_audio, set_volume_envelope, duck_audio, analyze_audio, quantize_cuts_to_beats, isolate_voice_on_clip, measure_audio, measure_mix |
| generate | generate_music, generate_sfx, generate_voiceover, clone_voice_from_clip, fix_spoken_line, generate_video |
| read | get_transcript, find_repeated_takes, capture_frame, survey_footage, measure_frame, measure_clip |
| remember | write_footage_notes, get_footage_notes, analyze_reference, save_style_profile, list_style_profiles, apply_style_profile |
| out | delegate_research, web_search, export_video |
Pricing
Driving the timeline over MCP is free: your agent brings its own model. The handful of tools that generate new media (music, voiceover, generated shots) use your klo account's credits, and the agent is told the price before it spends. New accounts get 10 free asks.
Security notes
- Listens on
127.0.0.1only. Nothing is exposed to the network. - Bearer token auth with constant-time comparison. Rotate the token from klo's settings anytime.
- Off by default. If klo is running but the connection is off, the server tells your agent exactly that.
- Voice cloning tools are consent-gated in the app.
Troubleshooting
"klo is running but is not accepting connections": turn the bridge on in
klo → Settings → Connections, then copy the token into KLO_MCP_TOKEN (or
the Authorization header for HTTP).
Port differs from 41720: klo falls back to an ephemeral port if the preferred one is taken. Always trust the URL shown in Settings.
About
This package is the thin connector; the editor itself is klo. The connector mirrors the copy bundled inside the app, and its major.minor version tracks the app release it shipped with.
FAQ
Can Claude Code edit videos? With klo installed, yes. Claude Code connects to this server and gains cutting, captions, grading, generated music and voiceover, and ProRes export on a real timeline. See what agentic video editing is.
Is this an ffmpeg wrapper? No. Tools operate on klo's timeline (ripple edits, word-gap cuts, undo), and nothing is re-encoded between steps. Why that design.
Does my footage get uploaded? No. Media stays on the Mac; the server exchanges timeline operations and compact results. Details in klo's privacy policy.
What does it cost? Driving the timeline is free with your own model. Generation tools use klo account credits. Pricing.
Related reading
- Give your coding agent a real timeline
- What is agentic video editing?
- klo changelog: the app ships several times a week
- Download klo for Mac
MIT (this connector). klo is a product of klorah inc. getklo.com
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