Developers
Everything you do in Fifty Eight, you can do from code, from a terminal or through an AI agent. All three use the same API key and follow the same rules as the app.
- REST APIYour own code, Zapier, n8n, a backend job.JSON over HTTPS. Every feature of the app: accounts, uploads, posts, dubbing, clips, best times, billing.
- CLIYour terminal, shell scripts, CI.The fiftyeight command wraps the API: upload a file and schedule it in one line, wait for a dub to finish.
- MCP serverClaude, Cursor and other AI agents.21 tools an agent can call to publish, schedule, dub, automate comment replies and check results, in plain language.
Addresses
The API lives at one base URL. Every endpoint starts with /v1. The MCP server is on the same host.
https://api.72-62-237-85.sslip.io/v1https://api.72-62-237-85.sslip.io/mcp/The API also serves an interactive OpenAPI explorer at https://api.72-62-237-85.sslip.io/docs.
What you can do
- List and connect social accounts, and set the language each account publishes in.
- Upload videos and images, then publish now, schedule, or save drafts to several accounts at once.
- Dub a video into up to 10 languages in the speaker's voice, with translated captions and burned-in subtitles, and send each version to the accounts that speak it.
- Cut clips from a long video, optionally reframed to 9:16.
- Read the best posting times learned per account and turn the optimizer on or off.
- Check credits, what an action costs and the credit history (credits and plans are bought in the dashboard).
Concepts
- Workspace. Everything belongs to one workspace: accounts, posts, credits. An API key belongs to one workspace and can only see that workspace.
- Brand. A group of accounts inside a workspace, usually one per client or project. A post targets accounts of one brand.
- Account. A connected social profile (Instagram, TikTok, YouTube…). Its publishing language decides which dubbed version it receives.
- Media. An uploaded file, referenced by its
media_id. - Localization. A dubbing job: one source video, one version per language.