MCP Servers
External tool servers Spinup can configure for the harness running inside a Spinup Agent environment.
An MCP server is an external tool server that the harness inside a Spinup Agent environment can call. MCP servers are one capability kind under capabilities, alongside skills, tools, plugins, CLIs, and runtime requirements.
You describe which MCP server the agent should have available, and Spinup keeps that setting with the agent.
What you control
You add an MCP server as a capability on the agent. The capability records the server name, source, and any secret bindings the server needs. Status can be declared or disabled.
What Spinup does
Spinup stores the MCP server settings with the agent, above any one harness. When the environment is provisioned or reconciled, the harness adapter wires the MCP server into the running harness in whatever shape that harness expects.
Switching to a different harness on the same agent reuses the same MCP server settings. Runtime fulfillment is recorded as evidence after the environment projects or validates the server.
Where to go next
- Add and manage MCP servers from the terminal in Agent Capabilities.
- See the broader capability model in Capabilities.