DeAlgo MCP Server

Runtime decision firewall for AI agents. Exposes the CSC engine (via the dealgo-portal control layer) as a Model Context Protocol server so any MCP-aware client — Claude Desktop, Claude Code, Cursor, custom agents — can consult CSC before executing risky actions.

Claude / agent
      ↓
MCP tool: csc_check(...)
      ↓
dealgo-portal /api/csc/check  (Bearer dealgo_sk_live_…)
      ↓
CSC engine: reality · policy · throttle gates
      ↓
{ decision, action, reason, v2_bias, latency_ms }

Tools

csc_check(feed, risk?, volatility?, confidence?, symbol?, source?, intent?, v2_aware=True)

Primary tool. Score one signal/action against CSC. Returns

{ "decision": "APPROVE" | "DELAY" | "DENY",
  "action":   "EXECUTE" | "WAIT" | "REJECT",
  "reason":   "...",
  "v2_bias":  -0.018,
  "stimulus_id": "stim_…",
  "latency_ms": 41 }

Proceed only on APPROVE. On DELAY, retry with backoff. On DENY, do not retry — surface the reason to the user.

check_action(intent, action, actor_id, domain, environment, metadata)

Backwards-compat shim. Maps the legacy governance payload onto csc_check so existing demos and Claude Desktop configs keep working. Prefer csc_check directly in new code.

Resource

governance://decisions/recent — last 20 decisions logged for the configured API key. Lets agents introspect their own history.

Setup (recommended — published package)

1. Install:

   pip install dealgo-mcp

2. Get a sandbox key from your portal at https://api.dealgo.io/keys (or https://api.dealgo.io/quickstart for a one-click reveal). Use a dealgo_sk_test_… key for a no-meter sandbox, dealgo_sk_live_… for prod.

3. Wire into Claude Desktop. Merge this into the config:

   • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json

   • Windows: %APPDATA%\Claude\claude_desktop_config.json

   {
     "mcpServers": {
       "dealgo-csc": {
         "command": "dealgo-mcp",
         "env": {
           "DEALGO_API_KEY": "dealgo_sk_test_…",
           "DEALGO_API_URL": "https://api.dealgo.io"
         }
       }
     }
   }

4. Restart Claude Desktop. Then ask Claude:

   "Use csc_check before doing anything risky."

   Every risky action will now consult /v1/decide and surface the verdict.

Setup (local dev — from source)

git clone https://github.com/dealgo-systems/dealgo-mcp-server
cd dealgo-mcp-server
pip install -e .            # editable install — picks up changes immediately

Then point Claude Desktop config to the editable install ("command": "dealgo-mcp" still works after pip install -e . — entry point is registered system-wide).

Smoke test

DEALGO_API_KEY=dealgo_sk_test_... python smoke_test.py

Exercises all three CSC gates (reality, policy, throttle), the backwards-compat shim, and the recent-decisions resource. Pass = CSC governance is live over MCP.

Configuration

Now Claude can call CSC before executing actions.