Yaw Labs' own 15 servers for the Model Context Protocol. Pick your client, paste an API key where needed, copy-paste to install.
Browse the full catalog of 85 MCP servers Yaw MCP can install →
Yaw MCP - MCP orchestrator CLI. Runs every MCP server locally from a JSON file you control. Token-budget aware: dispatch ranks servers against the current task and loads only what's needed instead of every tool description. Free for personal use. See yaw.sh/mcp for the recommended npm install -g path.
npx -y @yawlabs/mcp
Lint your AI agent context files, MCP server configs, and session data against your actual codebase. Catches broken paths, wrong commands, stale context, and token waste. Includes built-in MCP server.
npx -y @yawlabs/ctxlint
MCP spec compliance test suite. Tests any MCP server against the MCP specification (2025-11-25 revision). CLI tool and MCP server for automated validation of tool schemas, error handling, and protocol behavior.
npx -y @yawlabs/mcp-compliance
Manage your Tailscale tailnet from AI assistants. Admin-API tools covering devices, ACLs, DNS, auth keys, users, webhooks, posture management, and Tailscale Services, plus opt-in local-CLI diagnostics. HuJSON formatting preservation and ETag-safe ACL updates. Full setup guide →
npx -y @yawlabs/tailscale-mcp
npm registry intelligence for AI assistants. Package search, security audits, dependency analysis, download stats, version comparison, and org management.
npx -y @yawlabs/npmjs-mcp
MCP server for SSH operations with built-in diagnostics. Execute commands on remote hosts, transfer files, manage tunnels, and troubleshoot connectivity issues from any MCP client.
npx -y @yawlabs/ssh-mcp
Query PostgreSQL from AI assistants. Read-only by default (writes opt in via ALLOW_WRITES=1); extended-query protocol closes the stacked-query SQL injection class. 23 tools: schema introspection, EXPLAIN with optional HypoPG hypothetical indexes, pg_stat_statements diagnostics, lock inspection, role/privilege awareness. Drop-in replacement for the deprecated @modelcontextprotocol/server-postgres.
npx -y @yawlabs/postgres-mcp
Electron.js MCP server. IPC scaffolding, security auditing, build tooling, and development intelligence for AI assistants working on Electron apps. Pairs with electron-optimize, our drop-in utilities library for temp file cleanup, window bounds validation, startup timing, and cache management.
npx -y @yawlabs/electron-mcp
Manage Caddy web servers via the admin API. Configure reverse proxies, manage TLS certificates, update routes, and control Caddy instances from AI assistants.
npx -y @yawlabs/caddy-mcp
HTTP fetch with guardrails. SSRF protection (blocks private IPs, RFC 1918, cloud metadata endpoints), HTML-to-markdown, reader-mode extraction, metadata / link / sitemap / RSS-Atom parsing, and robots.txt verdicts. Designed for AI assistants that need to read the web without becoming a vector for blind-SSRF attacks against your internal network.
npx -y @yawlabs/fetch-mcp
Call any AWS API from AI assistants. One generic aws_call tool covers the full CLI surface, seven aws_resource_* tools wrap Cloud Control API for generic CRUD across hundreds of resource types (including a diff that simulates JSON-Patch updates locally before they hit AWS), and a device-code SSO flow handles mid-session token expiry without dropping you to a terminal.
npx -y @yawlabs/aws-mcp
Manage your LemonSqueezy store from AI assistants. Products, variants, orders, subscriptions, license keys, customers, discounts, webhooks, and checkout links.
npx -y @yawlabs/lemonsqueezy-mcp
Inspect and operate Redis from AI assistants. SCAN-based key exploration instead of a blocking KEYS, TTL / memory / keyspace introspection, slowlog and INFO health checks, and a DBA advisor that flags risky patterns before they turn into an incident.
npx -y @yawlabs/redis-mcp
What is actually true in this Terraform working directory. Reads the provider schemas pinned in your .terraform.lock.hcl so agents stop writing arguments that do not exist, were removed, or are read-only, plus your saved plans, redacted state, local and installed modules, and what a provider upgrade would break. Never runs terraform init. Full setup guide →
npx -y @yawlabs/terraform-cwd-mcp
What is actually true in this Ansible checkout. Reads the option specs of the modules you have installed so agents stop writing options that do not exist in your collection version, plus task-argument checks, role interfaces, redacted inventory, play structure, effective config, requirements drift, and collection-upgrade impact. Read-only by construction: it never runs a play, never connects to a managed host, never supplies a vault secret. Full setup guide →
npx -y @yawlabs/ansible-mcp
Fifteen MCP servers means fifteen install commands, fifteen configs to keep in sync, and fifteen things that can break - and that is on one client. Multiply by every MCP client you use and the JSON pile grows fast. Yaw MCP - pre-installed in Yaw Terminal, or npm install -g @yawlabs/mcp standalone - is one CLI that runs every MCP server locally from a JSON file you control, no account required for personal use. yaw mcp install <client> wires up whichever client you use, then keeps every server in one place.
All 15 servers are published on npm and maintained by Yaw Labs. Fourteen are MIT-licensed open source; the fifteenth is the Yaw MCP orchestrator (source on GitHub).