Constitutional-AI safety guardrails for any LLM — personas, constitutions, adjudication.
Creedspace MCP server is a hosted integration for AI assistants that speak the Model Context Protocol. Constitutional-AI safety guardrails for any LLM — personas, constitutions, adjudication.
Universal MCP server for Creed Space - AI safety guardrails in 10 seconds.
Creed Space provides personalized AI safety guardrails through Constitutional AI personas. Each persona enforces specific values and behaviors, ensuring AI assistants operate within defined ethical boundaries.
Once Creedspace is connected, these are the calls the assistant has available:
get_constitution — Get the merged constitution for a personaget_constitution_by_id — Get a specific constitution by IDsearch_constitutions — Search the constitution librarylist_personas — List all available personasset_persona — Switch the active personaget_active_persona — Get the currently active personaget_uvc_qualities — Get desired/disliked/never qualitiesget_system_prompt — Get a complete persona system promptpreview_export — Preview the export configurationadjudicate — Get a policy decision kernel for a requestattest_response — Validate a response against the active creedget_anchor — Get a compact non-negotiable-rules anchorBeing a remote server, there is no local install. You register the endpoint with your client, authorise it once, and the tools appear.
You will need 3 environment variables: CREEDSPACE_API_URL, CREEDSPACE_API_KEY, YOUR_KEY. The server will not start without them, which is usually why the tools fail to appear on a first run. Keep credentials in your client's env block or a secrets manager rather than in a file you might commit.
Plenty of AI and media services servers cover similar ground. The differences that matter in practice are scope of access and how much setup stands between you and a working tool call. Creedspace's toolset — get_constitution, get_constitution_by_id, search_constitutions and 11 more — is a fair guide to whether it matches your workflow. It is maintained by Creed-Space; worth a glance at recent repository activity before you build anything load-bearing on it.
We check each listing at SyncDev against the project's documentation before it goes live — if something here drifts out of date, it is a bug worth reporting.
| Tool | What it does |
|---|---|
| get_constitution | Get the merged constitution for a persona |
| get_constitution_by_id | Get a specific constitution by ID |
| search_constitutions | Search the constitution library |
| list_personas | List all available personas |
| set_persona | Switch the active persona |
| get_active_persona | Get the currently active persona |
| get_uvc_qualities | Get desired/disliked/never qualities |
| get_system_prompt | Get a complete persona system prompt |
| preview_export | Preview the export configuration |
| adjudicate | Get a policy decision kernel for a request |
| attest_response | Validate a response against the active creed |
| get_anchor | Get a compact non-negotiable-rules anchor |
| heartbeat | Periodic re-anchoring to prevent context drift |
| clear_cache | Clear the local cache |
{
"mcpServers": {
"creedspace": {
"command": "npx",
"args": ["-y", "@creedspace/mcp-server"],
"env": {
"CREEDSPACE_API_URL": "your-value",
"CREEDSPACE_API_KEY": "your-value",
"YOUR_KEY": "your-value"
}
}
}
}Add to claude_desktop_config.json, then restart Claude Desktop.
| Variable | Description | Required |
|---|---|---|
| CREEDSPACE_API_URL | Endpoint or connection string the server talks to. | Yes |
| CREEDSPACE_API_KEY | Credential the server authenticates with. | Yes |
| YOUR_KEY | Credential the server authenticates with. | Yes |
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