In-depth architectural comparison of the Exogram Authority Runtime and Kleo MCP servers. Compare execution transports, security boundaries, tool capabilities, quality scores, and ready-to-paste client installation snippets for Claude, Cursor, Windsurf, and VS Code.
At a Glance & Executive Verdict
Exogram Authority Runtime
Developer Tools · Local stdio
Quality: 44/100 (Fair) | Auth: No auth required
Kleo
Developer Tools · Remote HTTP/SSE
Quality: 52/100 (Good) | Auth: No auth required
Verdict Summary: Choose Exogram Authority Runtime if you need specialized Developer Tools tools running via a local process. Choose Kleo if your workspace requires Developer Tools integration with remote web transport. Both servers can be configured concurrently in your client's mcpServers manifest.
Which MCP Server Should You Choose?
Choose Exogram Authority Runtime when:
You need dedicated capabilities in the Developer Tools domain.
You prefer local stdio subprocess transport architecture.
Your security boundary fits: No auth required (Free / Open Source).
No explicit tool names declared in metadata yet. Check project README on main listing page.
Kleo Tools (10)
kleo_adapt_prompt
Called first. Reads the request against Kleo's intake (subject, length, format, look; audience, tone, what must appear), answers with the questions the request leaves open, and once everything is known hands the assistant the producer's method for writing the treatment.
kleo_list_templates
The ten templates (format, length range, voices, credit cost) and the credits left on the account.
kleo_storyboard_guide
The storyboard format Kleo renders (styles, scene kinds, beats, icons, voices, rules) with examples, so the assistant can write an original storyboard. Optional: without one, Kleo plans the video from the prompt.
kleo_create_video
Queues a render from a template, a prompt and (optionally) a storyboard. Returns `job_id`, `eta_min` and the credits charged at once; nothing is charged on error.
Ready-to-Paste Client Configurations
Paste either (or both) of these JSON server blocks into your client config file (e.g. claude_desktop_config.json or ~/.cursor/mcp.json).
Exogram Authority Runtime is categorized under Developer Tools and uses a local stdio subprocess. In contrast, Kleo belongs to Developer Tools using remote streaming HTTP/SSE transport. Select Exogram Authority Runtime when you need capabilities focused on developer tools and Kleo when you require tools for developer tools.
Waits (as long as the calling client allows: 45 s for ChatGPT/Grok, up to 5 min for OpenCode) and returns the links as soon as the video is ready, so the assistant keeps its spinner and delivers on its own.
kleo_get_job
State, current track, percent and minutes left; without `job_id`, the recent videos of the account.
kleo_get_result
Signed download links for a finished job.
kleo_generate_thumbnail
Not enabled yet in the beta (every render already includes a thumbnail): records the request and returns a notice.
kleo_cancel_job
Cancels a queued or running job and refunds the unused credits.
kleo_account
Credits left, the read-only link to the account page (`/credits`) and the "Kleo key" that carries the account to another browser. The link is safe to paste anywhere; the key is the account.