Rystic MCP
Local MCP server that lets your coding agent run simulators of real APIs (Stripe, GitHub, Slack) on your machine: start, seed, move the clock, inspect, diff, save tests.
Local MCP server that lets your coding agent run simulators of real APIs (Stripe, GitHub, Slack) on your machine: start, seed, move the clock, inspect, diff, save tests.
Features
Category
Install the CLI: `curl -fsSL https://www.rystic.ai/install.sh | sh` Then register the server with your client: `rystic mcp install --client claude-code` (also Cursor, Codex, VS Code, Windsurf). Tools: list_twins, start_twin, stop_twin, list_scenarios, load_scenario, seed, set_clock, advance_clock, reset, inspect_state, list_calls, list_sent, diff_state, save_test_case. Docs: https://www.rystic.ai/docs/mcp-server
GitHub
Access GitHub repositories, issues, and pull requests.
Everything
Reference / test server with prompts, resources, and tools
Git
Tools to read, search, and manipulate Git repositories
GitLab
GitLab API, enabling project management
Sequential Thinking
Dynamic and reflective problem-solving through thought sequences
Sentry
Retrieving and analyzing issues from Sentry.io