MCP Comparison · 2026
Cloudflare vs Fly.io MCP Server
Comparing Cloudflare and Fly.io as MCP servers? Cloudflare (manage dns, workers and domains) is best when dns record management on cloudflare zones. Fly.io (manage fly.io hosting) is best when local flyctl users who want agent access. Both run as Model Context Protocol servers and can coexist in the same client. Updated 2026.
Side-by-side specs
Pulled from each MCP's verified fact sheet.
| Cloudflare | Fly.io | |
|---|---|---|
| Primary function | Manage DNS, Workers and Domains | Manage Fly.io Hosting |
| Maintainer | Cloudflare | Fly.io |
| Pricing | Freemium | Freemium |
| Setup complexity | Medium · ~5 min | Medium · ~5 min |
| Transport | Streamable HTTP | Streamable HTTP, SSE |
| Auth model | OAuth 2.1 | API key |
| License | Apache-2.0 | Apache-2.0 |
| Language | TypeScript | Go |
| Latest version | latest | latest |
| Compatible clients | Claude, Cursor, VS Code, Any MCP client with remote-server support, Cloudflare accounts | Claude, Cursor, VS Code, Zed, Neovim, Windsurf, Fly.io accounts |
| Last verified | 2026-10-20 | 2026-08-19 |
Which one should you pick?
Decision rubric drawn from each MCP's documented strengths.
Choose Cloudflare
- DNS record management on Cloudflare zones
- Worker deployment and rollback
- Domain search, check and registration via the Registrar API beta
Choose Fly.io
- Local flyctl users who want agent access
- Managing Fly Machines from chat
- Deploys, scaling, secret rotation
Pick something else if…
- Unattended DNS changes on production domains
- Remote-only or team deployments (no hosted MCP)
Feature breakdown
Key capabilities each server ships out of the box.
Cloudflare
- Hosted at https://mcp.cloudflare.com/mcp — OAuth with permission selection, or a bearer API token
- Code Mode: `search`, `execute` and `docs` over ~2,500 API endpoints
- DNS records, zones, Workers, R2, KV, D1, Pages, firewall
- Registrar API beta: domain-search, domain-check, registrations (Registrar write permission)
- Sixteen further single-purpose remote servers (docs, bindings, observability, DNS analytics, Radar, …)
Fly.io
- Built into flyctl — no separate install
- HTTP transport on port 8080 (configurable)
- SSE + streaming modes available
- Auto-config flags for Claude, Cursor, VS Code, Zed, Neovim, Windsurf
- `fly mcp inspector` for debugging
Install snippets
Open the detail page for ready-to-paste config for every major client.
FAQ
Cloudflare vs Fly.io: which MCP server should I use?
Pick Cloudflare when dns record management on cloudflare zones. Pick Fly.io when local flyctl users who want agent access. Cloudflare is built for manage dns, workers and domains, while Fly.io focuses on manage fly.io hosting.
Can I run both Cloudflare and Fly.io together?
Yes. MCP clients run each server as a separate process and surface every server's tools simultaneously, so you can install both and let your agent decide which to call. Be deliberate with auth scopes when stacking servers.
How fresh is this comparison?
Updated for 2026. Cloudflare's last verification: 2026-10-20. Fly.io's last verification: 2026-08-19. We refresh detail-page facts on every catalog rebuild.
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