Full reasoning-based audit of all 10 zones. 11 findings, all confirmed real,
zero false positives. 5 fixed now, 6 deferred to a justified backlog.
API-SERVERS-001 (HIGH) — DELETE /v1/servers/:id orphaned the container
The route deleted the DB row but never stopped the Docker container — it
kept running forever on its host port, still serving traffic with the
user's secrets baked into its env. The takedown path got stopContainer in
an earlier commit; this sibling path was missed. DELETE now tears the
container down first. Verified: deleted 'gfgfg' — container 23e0c55c gone,
:4110 connection-refused after.
INFRA-001 (HIGH) — SECRETS_ENCRYPTION_KEY zero-default usable in production
The AES-256-GCM key defaults to 64 zeros and passes the min(64) check. A
prod deploy that forgot to set it booted silently with every secret
encrypted under a public key. config.ts now throws on boot when
NODE_ENV=production and the key is still the placeholder. Verified: prod
boot with the zero key is REFUSED.
API-SERVERS-002 (MEDIUM) — WS build stream had no authorization
GET /v1/builds/:id/stream streamed build logs with no auth, while its REST
twin checks orgId. Now authenticates from the session cookie and rejects
builds outside the caller's org. Verified: no cookie -> 'unauthorized';
cross-org build -> 'not_found'; own build -> streams (no regression).
OAUTH-001 (MEDIUM) — authorization code consumption was not atomic
The 'already used?' check and the 'mark used' write were separate
statements — two requests racing the same code could both mint tokens.
Now a conditional UPDATE ... WHERE consumed_at IS NULL RETURNING; the
loser of the race gets zero rows and invalid_grant.
OAUTH-002 (MEDIUM) — 'plain' PKCE accepted, contradicting AS metadata
The AS metadata advertises code_challenge_methods_supported: ['S256'] but
/oauth/authorize accepted 'plain'. Authorize is now z.literal('S256') and
pkceVerify dropped the plain branch. Verified: authorize with plain -> 400.
Deferred to backlog (documented in TEMPLATE_SECURITY_AUDIT.md is template-only;
this audit's findings are in the commit + certification):
GENERATOR-001 — secrets via docker -e (visible in docker inspect); needs
--env-file rework
RUNNER-001 — generated containers run as root; needs USER node + build
re-test
AUTH-001 — no rate limit on magic-link / oauth register; needs
@fastify/rate-limit
GENERATOR-002— allocatePort check/bind race; low, self-heals on rebuild
AUTH-002 — expired magic_links/sessions/oauth rows never purged; needs
a cron
FEATURES-001 — tool-call metering not wired (metrics always 0); Sprint 4
by plan
|
||
|---|---|---|
| apps | ||
| packages | ||
| scripts | ||
| .env.example | ||
| .gitignore | ||
| biome.json | ||
| BuildMyMCPServer_MASTER_PROMPT.md | ||
| CHOICES.md | ||
| docker-compose.yml | ||
| package.json | ||
| pnpm-lock.yaml | ||
| pnpm-workspace.yaml | ||
| README.md | ||
| TEMPLATE_SECURITY_AUDIT.md | ||
| tsconfig.base.json | ||
| turbo.json | ||
BuildMyMCPServer
Describe your tool. We host the server. AI uses it.
Prompt-to-production MCP servers with OAuth 2.1 and Streamable HTTP. Production-grade infrastructure for hosting Model Context Protocol servers your AI clients (Claude Desktop, Cursor, ChatGPT) can install with a copy-paste snippet.
Quick start
# 1. Install
pnpm install
# 2. Copy env. Defaults work for local dev. Set ANTHROPIC_API_KEY if you want real generation.
cp .env.example .env
# 3. Boot everything
pnpm dev
pnpm dev will:
- Load
.env. docker compose up -d --waitpostgres + redis.- Push the Drizzle schema (
drizzle-kit push --force). - Start the full stack in parallel: web (Next.js, :3000), api (Fastify, :4000), generator (BullMQ worker).
Then open:
- Dashboard: http://localhost:3000
- API: http://localhost:4000/health
Click Start building, enter your email, copy the magic-link URL printed to the
api terminal output, paste it in your browser. You land on /dashboard. Click
New server, paste a prompt, and watch the build stream live over WebSocket.
If ANTHROPIC_API_KEY is unset, the generator returns a deterministic mock spec
(an echo and a now tool) so the full end-to-end flow stays demoable.
If Docker is unavailable, the build will fail at the deploy step with a clear error.
Otherwise: a fresh container is launched on a host port from
RUNNER_PORT_RANGE_START…RUNNER_PORT_RANGE_END, the server is marked live, and the
dashboard renders install snippets for Claude Desktop, Cursor and ChatGPT.
Architecture
See BuildMyMCPServer_MASTER_PROMPT.md for the full specification and CHOICES.md
for decisions made during this Sprints 1–3 build.
apps/
web/ Next.js 15 dashboard + marketing landing
api/ Fastify control plane (auth, server CRUD, OAuth 2.1 AS, JWKS, WS stream)
generator/ BullMQ worker — Claude → spec → render → docker build → local deploy
runner-template/ Hosted MCP server template (Streamable HTTP + OAuth 2.1 RS)
packages/
db/ Drizzle schema + client
auth/ Magic-link + session
types/ Shared Zod contracts
Scripts
| Command | Effect |
|---|---|
pnpm dev |
Bootstrap + parallel dev for web, api, generator |
pnpm dev:no-docker |
Skip docker-compose (assumes postgres + redis already up) |
pnpm build |
Turbo build all apps |
pnpm typecheck |
Turbo typecheck all apps |
pnpm lint |
Biome check |
pnpm lint:fix |
Biome check --write |
pnpm db:push |
Push schema to postgres (drizzle-kit) |
pnpm db:generate |
Generate SQL migration files |
pnpm db:migrate |
Apply pending migrations |
pnpm stop |
docker compose down |
Acceptance check
After pnpm dev is up:
http://localhost:3000renders the landing page.http://localhost:4000/healthreturns{ "ok": true }.- Sign in via magic link (URL printed in the api terminal).
- New Server → paste prompt → live WebSocket stream
queued → generating → building → deploying → live. - If Docker is running, a container is launched and
http://localhost:<port>/mcpresponds 401 + WWW-Authenticate without a token, 200 with a valid token issued by/oauth/token. - Install snippets render with copy buttons for Claude Desktop, Cursor, ChatGPT.
Repo conventions
- TypeScript strict, zero
any(Biome lintsnoExplicitAnyas error). - ESM-only, Node 20 LTS.
- Conventional commits.
- Tailwind v4 (
@import 'tailwindcss'). - Geist + Geist Mono.