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Claim a working subdomain in one call — A, CNAME and TXT records. No domain to buy, no account.
About
Claim a working subdomain in one call — A, CNAME and TXT records. No domain to buy, no account.
Remote endpoints: streamable-http: https://sitey.my/mcp
Security Report
This MCP server for managing DNS subdomains demonstrates solid security practices with proper authentication, input validation, and permission scoping. The codebase uses parameterized queries to prevent SQL injection, implements rate limiting for anonymous users, and validates all DNS record inputs. Minor code quality issues around error handling breadth and some logging patterns prevent a higher score, but no critical vulnerabilities or dangerous patterns were identified. Supply chain analysis found 11 known vulnerabilities in dependencies (0 critical, 4 high severity).
4 files analyzed · 17 issues found
Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.
Permissions Required
This plugin requests these system permissions. Most are normal for its category.
How to Install & Connect
Available as Local & Remote
This plugin can run on your machine or connect to a hosted endpoint. during install.
Documentation
View on GitHubFrom the project's GitHub README.
sitey.my
Free subdomain service for developers. Get a subdomain in seconds — no credit card, no hassle.
Features
- Instant DNS — A, CNAME, and TXT records, live in seconds
- Google sign-in — No passwords to manage
- REST API — Programmatic access via /api/v1/
- Renewals — Subdomains are lent for a period and kept with one click
- Free — No cost, no catch
How long a subdomain lasts
| Owner | Period | Reminders |
|---|---|---|
| Signed-in user | 3 months | 14 days, 3 days and the day it expires |
| API key / agent | 1 month | none — expires_at comes back with every read |
Renewing resets the clock from today. A subdomain that stops loading is not removed: we write to tell you it has gone dark, and that is all.
Quick Start
- Visit sitey.my
- Sign in with Google
- Type a subdomain + IP address → done
REST API
Programmatic access for developers and AI agents.
Base URL: https://sitey.my/api/v1
sitey.one and the www. hosts redirect here (308 for /api/*, so POST bodies survive).
Authentication
| Mode | Auth | Limit |
|---|---|---|
| Anonymous | None (IP-based) | 3 subdomains |
| API key | Authorization: Bearer styo_xxx | Unlimited |
Get an API key: sign in at sitey.my → Dashboard → API Keys.
Endpoints
| Method | Path | Description |
|---|---|---|
| GET | /domains | List available root domains |
| GET | /check/:subdomain/:domain | Check availability |
| POST | /subdomains | Create A or CNAME record |
| GET | /subdomains | List your subdomains |
| PATCH | /subdomains/:sub/:domain | Update record value |
| DELETE | /subdomains/:sub/:domain | Delete subdomain |
| POST | /subdomains/:sub/:domain/renew | Extend before expires_at |
| POST | /subdomains/:sub/:domain/txt | Create/update TXT record |
| DELETE | /subdomains/:sub/:domain/txt/:prefix | Delete TXT record |
Example
# Check availability
curl https://sitey.my/api/v1/check/demo/sitey.my
# Create subdomain
curl -X POST https://sitey.my/api/v1/subdomains \
-H "Content-Type: application/json" \
-d '{"subdomain":"demo","domain":"sitey.my","type":"A","value":"1.2.3.4"}'
For AI Agents (MCP)
AI agents can use free-domain-mcp — an MCP server that wraps this REST API.
claude mcp add --transport http sitey https://your-mcp-server/mcp
Tech Stack
- Runtime: Node.js + Fastify
- DNS: Self-hosted BIND9 (authoritative nameserver)
- Database: MySQL
- Auth: Google OAuth2 + JWT
How It Works
- User (or API call) requests a subdomain
- Server validates input + checks availability
- A/CNAME/TXT record is appended to the BIND9 zone file
named-checkzonevalidates →systemctl reload namedapplies- DNS is live within seconds
We run our own authoritative nameservers (ns1.sitey.one, ns2.sitey.one) — no third-party DNS provider.
Use Cases
- Deploy a side project to
myapp.sitey.my - Give hackathon demos a real URL
- Automate domain setup via REST API or MCP
- Share staging environments with teammates
Support
License
Reviews
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