Stable Baseline — MCP Server

The simplest, most complete, end-to-end agent-managed company brain.

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How to use Stable Baseline

Pick the surface that matches how you work — every option talks to the same handlers, the same auth, the same data:

196 tools across 18 categories. Same brain, same Knowledge Graph, same RBAC — every surface.

One workspace where humans and any MCP-compatible AI agent — Claude Code, Cursor, Windsurf, VS Code, Warp, OpenCode, Antigravity, OpenAI Codex, ChatGPT Developer Mode, Gemini CLI/Extensions, and more — co-author living documents (Markdown-native with a rich superset on top), 40+ visual diagrams (Mermaid, BPMN 2.0, D2, PlantUML, GraphViz, ELK architecture, sequence, state, ERD, Gantt, Excalidraw freehand), plans, timelines, tasks, improvements, and a self-learning Knowledge Graph that IS the company brain.

Lean, fast, secure, and affordable — flexible enough for one person organising a personal mind, through to small businesses, growing businesses, and enterprise.

196 MCP tools across 18 categories let an agent drive end-to-end: sign-up → billing → org/workspace/project → members → teams → permissions → brain scope → docs → diagrams → whiteboards → plans, all without a human touching the UI.

Endpoint

https://api.stablebaseline.io/functions/v1/cloud-serve/mcp

Transport: Streamable HTTP (with SSE fallback) Auth: OAuth 2.1 with Dynamic Client Registration, or Bearer API key (sta_*) Discovery manifest: https://stablebaseline.io/.well-known/mcp.json

Quick start

Mint an API key (skip OAuth)

1. Sign up free — no credit card
2. Go to Settings → MCP keys and click Generate
3. Copy the sta_... key

(Or skip this — every client below also supports interactive OAuth on first call.)

Claude Desktop

Edit ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):

{
  "mcpServers": {
    "stable-baseline": {
      "url": "https://api.stablebaseline.io/functions/v1/cloud-serve/mcp",
      "headers": {
        "Authorization": "Bearer sta_YOUR_KEY"
      }
    }
  }
}

Or use the Claude Desktop OAuth flow — set just url and Claude will prompt you to authorize on first call.

Claude Code

claude mcp add --transport http stable-baseline \
  https://api.stablebaseline.io/functions/v1/cloud-serve/mcp \
  --header "Authorization: Bearer sta_YOUR_KEY"

Or via OAuth:

claude mcp add --transport http stable-baseline \
  https://api.stablebaseline.io/functions/v1/cloud-serve/mcp

Cursor

~/.cursor/mcp.json:

{
  "mcpServers": {
    "stable-baseline": {
      "url": "https://api.stablebaseline.io/functions/v1/cloud-serve/mcp",
      "headers": { "Authorization": "Bearer sta_YOUR_KEY" }
    }
  }
}

Windsurf

~/.codeium/windsurf/mcp_config.json:

{
  "mcpServers": {
    "stable-baseline": {
      "serverUrl": "https://api.stablebaseline.io/functions/v1/cloud-serve/mcp",
      "headers": { "Authorization": "Bearer sta_YOUR_KEY" }
    }
  }
}

VS Code (Copilot Chat)

.vscode/mcp.json (workspace) or user settings:

{
  "servers": {
    "stable-baseline": {
      "type": "http",
      "url": "https://api.stablebaseline.io/functions/v1/cloud-serve/mcp",
      "headers": { "Authorization": "Bearer ${input:sta_key}" }
    }
  }
}

Other clients

Recipes for Warp, OpenCode, Antigravity, OpenAI Codex, ChatGPT Developer Mode, Gemini CLI/Extensions, and a generic recipe are at stablebaseline.io/docs/mcp/setup.

What you get

Full live catalogue: stablebaseline.io/docs/mcp/tools

Highlights

• End-to-end agent-managed: agents drive sign-up → billing → org/workspace/project lifecycle → members → teams → permissions → Knowledge Graph scope. No human touching the UI.
• Living documents: AI-native rich-text editor (CDMD = Markdown + inline diagrams, data tables, media, version history, real-time multi-author edits).
• Visual diagram creation & editing: 40+ types — AI-generated, diagram-as-code, or freehand.
• Plans, timelines, tasks, improvements & bugs: Day/Week/Month/Quarter/Year zoom Gantt, drag-to-reschedule, dependency cascades.
• Self-learning Knowledge Graph (Enterprise): auto-built from every doc/plan/improvement; read by every connected agent. Stops hallucinations around gaps. Run one brain workspace-wide, one per department, or one per project — RBAC end-to-end.
• Compliance Readiness (Enterprise): scans against OWASP ASVS, NIST SSDF, CIS Controls, ISO 27001, SOC 2, TISAX. Readiness only — not legal advice, not an attestation.
• Bring-your-own-agent — no lock-in: any MCP-compatible client.
• Credit-cost preview ritual for every spending operation: previewX → confirm token → applyX.

Auth