mcp-crew — Agent Personas for Claude
Zero API Cost Agent Fleet via MCP. Transform Claude into specialized roles — CEO, CFO, CTO, CMO, PM, Analyst, Support, Creative Director — with domain-specific frameworks, decision models, and memory integration.
Why mcp-crew?
Agent Fleets are expensive. Every agent needs its own LLM API call. mcp-crew takes a different approach:
- Zero extra API cost — Runs within your existing Claude subscription
- Memory-integrated personas — Each persona auto-loads your business context via Nex Memory
- Battle-tested prompts — Extracted from 20+ production agents with domain-specific frameworks
- Works everywhere — Claude Desktop, Claude Code, Cursor, VS Code, any MCP client
Quick Start
Option 1: Remote Server (recommended)
Add this URL in your MCP client:
https://crew.studiomeyer.io/mcp
Sign in with your email. All 10 tools are immediately available.
Option 2: Claude Code CLI
# Clone and build
git clone https://github.com/studiomeyer-io/mcp-crew.git
cd mcp-crew && npm install && npm run build
# Add to Claude Code
claude mcp add mcp-crew -- node dist/server.js
8 Built-in Personas
| Persona | Category | Frameworks | Use When... |
|---|---|---|---|
| CEO | Business | OKR, Eisenhower Matrix, 3-Question Decision Check | Strategy, prioritization, delegation |
| CFO | Business | 11 SaaS Metrics (CAC, LTV, MRR, NRR, Rule of 40), Unit Economics | Financial analysis, pricing, ROI |
| CMO | Business | AARRR Pirate Metrics, Content Distribution Matrix, SEO/GEO | Marketing, content, growth |
| PM | Business | RICE/ICE Scoring, Jobs-to-be-Done, PRD Template, User Stories | Product decisions, feature prioritization |
| CTO | Tech | ADR Template, DORA Metrics, Tech Debt Quadrant | Architecture, code review, tech decisions |
| Analyst | Ops | SWOT, PESTLE, Porter's Five Forces, Source Credibility Matrix | Research, competitive intelligence |
| Support | Ops | Escalation Decision Tree, 5 Response Templates | Customer communication, documentation |
| Creative | Creative | Brand Voice Spectrum, 10 Headline Formulas | Design direction, copywriting, brand |
Every persona includes: domain frameworks, few-shot examples, anti-patterns, chain-of-thought thinking process, and cross-persona handoffs.
10 Tools
| Tool | Description |
|---|---|
crew_guide | Help and onboarding (5 topics) |
crew_list | List personas by category |
crew_activate | Activate a persona with optional business context |
crew_deactivate | Return to default Claude |
crew_status | Show active persona + duration |
crew_feedback | Rate persona performance (1-5) |
crew_create | Create custom persona (saved to ~/.mcp-crew/) |
crew_delete | Delete custom persona (built-in protected) |
crew_workflow_list | List multi-persona workflows |
crew_workflow_run | Run a workflow (sequential persona chain) |
3 Workflows
Workflows chain multiple personas for complex tasks:
- Strategy Review — CEO analyzes → CFO evaluates financials → CTO checks feasibility
- Content Pipeline — CMO drafts → Analyst fact-checks → Creative polishes
- Product Launch — Analyst researches → PM writes PRD → CEO decides → CMO plans marketing → CTO reviews tech
Each workflow step uses the full persona prompt with all frameworks and decision models.
Memory Bridge
When connected with StudioMeyer Memory, personas auto-load your business context:
- CFO knows your last pricing decisions and revenue numbers
- CEO knows your strategy and open goals
- Analyst knows your competitor research
- PM knows your feature backlog and user feedback
Custom Personas
Create your own personas via tool or file:
crew_create(
name: "legal",
displayName: "Legal Advisor",
prompt: "You are a Legal Advisor focused on GDPR, contracts...",
tags: ["legal", "compliance"],
memory_queries: ["legal", "contracts"]
)
Custom personas are saved to ~/.mcp-crew/personas/ and loaded instantly.
How It Works
mcp-crew delivers detailed system prompts via MCP. When you activate a persona:
- The persona's full prompt is loaded (role, frameworks, anti-patterns, examples)
- Memory queries are injected (if Nex Memory is connected)
- Business context is appended (if provided)
- Claude adopts the role with full tool access to your other MCP servers
No extra LLM calls. No API keys. Just better prompts.
vs. Alternatives
| mcp-crew | DollhouseMCP | Ruflo | |
|---|---|---|---|
| Personas | 8 (domain frameworks) | 150+ (generic) | 60+ (swarm) |
| Memory Integration | Yes (Nex Memory) | No | Own (AgentDB) |
| Extra API Cost | $0 | $0 | $$$ (multi-agent) |
| Frameworks | RICE, DORA, AARRR, SWOT... | None | Template-based |
| Setup | 1 URL | npm install | npm + wizard |
Pricing
Free. All 10 tools, all 8 personas, all 3 workflows, custom persona creation. No limits.
Links
- Server: https://crew.studiomeyer.io
- Health: https://crew.studiomeyer.io/health
- Docs: Full documentation
- Memory: https://memory.studiomeyer.io
- Studio: https://studiomeyer.io
License
MIT
Built by StudioMeyer — AI-First Digital Studio.