Jentic One is a self-hosted execution layer that lets AI agents call real APIs through a broker that checks permissions and injects stored credentials, so agents do useful work without ever holding your API keys. You register the APIs an agent may use, store each credential once on your own infrastructure, and approve which agents can connect. Every call the agent makes passes the permission check first, and denied requests stop at the broker with a 403 instead of reaching the outside service. Allowed calls go out with the credential attached, and each one lands in an execution record you can review later. Cutting off a single agent takes one change in the control plane, with no key rotation across your other tools. Agents connect through the jentic CLI, a generated skill, an MCP server, or plain HTTP, so coding assistants and in-house agents share the same gate. The stack runs as two units over one database: the control plane on port 8000 for administration, and the broker data plane that agents call. Quickstart runs on SQLite for trials, and production setups move to Postgres with pinned images and TLS. Running on a dedicated VPS on RepoCloud with guaranteed CPU, RAM, and SSD, full root SSH access, and a browser serial console. Apache-2.0 licensed.