mcp-anvil 0.1.0

Scaffold, audit, and inspect Model Context Protocol (MCP) servers from the CLI.

MCP Anvil

Scaffold, audit, and inspect Model Context Protocol (MCP) servers from the CLI. The missing toolbox for MCP server authors.

mcp-anvil new <name>      # scaffold a new server      (free)
mcp-anvil audit <path>    # security + health audit    (paid)
mcp-anvil inspect <path>  # live tool playground       (paid)

Why MCP Anvil

Every shipped MCP server in 2026 reinvents the same plumbing: manifest, auth, tool-name hygiene, security audit, local debugging playground. Anthropic's official MCP Inspector is bare-bones; JetBrains' plugin is IDE-bound. Nothing ties scaffolding, auditing, and inspecting into one tool.

MCP Anvil fills that gap. It bundles:

• Production-grade templates for Python and TypeScript (Rust + Go later) — working sample tools, manifest, tests, Dockerfile, README.
• A security audit built from the published MCP fault taxonomies (arXiv 2506.13538, arXiv 2603.05637) plus AgentDojo-style injection probes.
• A live tool playground that beats the official Inspector on polish: fixture saving, response diffing, token + cost estimation, record/replay.

Install

pip install mcp-anvil        # or: pipx install mcp-anvil  (recommended)

Python 3.11+ required.

Quickstart

mcp-anvil new my-first-server --lang python
cd my-first-server
mcp-anvil inspect .

Pricing

Tier	Price	What you get
Free	$0	new command, all templates, all features
Personal	$29	+ audit + inspect, 1 year of updates
Team	$99	+ 5 seats, priority audit rules

Purchase via Polar.sh (handles VAT/sales tax). Source-available; see LICENSE.md.

Status

Alpha. v0.1.0 scaffolds the CLI surface and design. Real implementations land per the 4-week build plan.

License

Commercial license — see LICENSE.md. One license per developer. Forking, modifying, and shipping in client work all OK. Re-selling the kit itself is not.

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