MCP Emulator
Stateful GitHub-backed MCP emulator with streamable HTTP transport, OAuth discovery, Dynamic Client Registration, authorization-code OAuth, and enterprise-managed ID-JAG token exchange.
Create an instance
Each instance is isolated, stateful, and addressable at its own host. The server generates an unguessable name; an optional {"instance":"<prefix>"} body adds a readable prefix.
curl -s -X POST https://mcp.emulators.dev/_emulate/instancesHosted deployments create instances lazily when the returned URL is first used. The instance URL is a capability: anyone who has it can read and modify the instance, so save the returned URLs. Never store real secrets in an emulator.
Sample instance host: https://mcp.your-instance.emulators.dev
Surfaces
| Surface | Status | Path |
|---|---|---|
| Streamable HTTP MCP endpoint | supported | /mcp |
| MCP OAuth authorization server | supported | |
Control API
manifest | quickstart | specs | coverage | connections