Mintlify vs Fly.io
Beautiful docs + AI search — used by Anthropic, Cursor, Perplexity
vs. Run your app close to users, globally
Pricing tiers
Mintlify
Hobby
$0. 1 editor. Unlimited pages. Mintlify subdomain. Community support.
Free
Pro
$150/mo. Custom domain, analytics, versioning, 10 editors. Commercial use.
$150/mo
Growth
$550/mo. API playground, OpenAPI, 25 editors, advanced analytics, SSO.
$550/mo
Enterprise
Custom. Dedicated support, HIPAA, SAML, custom integrations, large teams.
Custom
Fly.io
Pay-as-you-go
No monthly fee. Machines billed per second. Free allocations: ~3 small shared machines + 3 GB volumes.
$0 base (usage-based)
Shared CPU 1x — 256 MB
Entry VM. 1 shared vCPU, 256 MB RAM. ~$2.02/month continuously on.
$2/mo
Performance 1x — 2 GB
Dedicated 1 vCPU, 2 GB RAM.
$32/mo
Reservation — Shared (1 yr)
$36/year for $5/mo credit (40% savings).
$36/mo
Shared CPU 8x — 16 GB
8 shared vCPU, 16 GB RAM.
$89/mo
Performance 16x — 128 GB
Dedicated 16 vCPU, 128 GB RAM.
$1014/mo
Enterprise
Custom. Dedicated capacity, SLA.
Custom
Free-tier quotas head-to-head
Comparing hobby on Mintlify vs pay-as-you-go on Fly.io.
| Metric | Mintlify | Fly.io |
|---|---|---|
| No overlapping quota metrics for these tiers. | ||
Features
Mintlify · 15 features
- AI Chat — User-facing AI assistant trained on your docs.
- AI Search — Semantic search across docs.
- Analytics — Page views, search queries, CTR.
- API Playground — Try API endpoints from docs (OpenAPI).
- Custom Domain — docs.yourco.com.
- Custom Theming — Logo, colors, fonts, branding.
- Git Sync — Build on push to GitHub/GitLab.
- i18n — Multi-language docs.
- MDX — Markdown + React components.
- Multi-version Docs — Support /v1, /v2, /v3 side-by-side.
- OpenAPI Generation — Auto-generate docs from spec.
- Pre-built Components — Cards, Callouts, Tabs, CodeGroups, Accordions.
- SEO Optimized — SSR + structured data.
- SSO — SAML + OIDC (Growth+).
- Syntax Highlighting — Shiki-based, 100+ languages.
Fly.io · 14 features
- Auto Stop/Start — Machines auto-stop when idle, start on request (like scale-to-zero).
- Certs — Let's Encrypt + wildcard certs managed.
- Fly GPU — A100/L40S/A10 on-demand GPU machines.
- Fly Kubernetes (FKS) — Managed Kubernetes on Fly machines.
- Fly Machines — Firecracker microVMs. Start in <1s. Run any Docker image.
- Fly Postgres — Managed Postgres via Supabase partnership (2024). Also legacy self-run Postgres …
- fly-replay headers — Route request to another region at app level.
- Fly Volumes — Persistent SSD attached to a Machine. Encrypted at rest.
- Global Anycast — Single IP routes to the closest region automatically.
- LiteFS — Distributed SQLite with primary/replica across regions.
- Private Networks — 6PN WireGuard mesh. Connect machines across regions privately.
- Secrets — Encrypted env vars propagated to all regions.
- Tigris (partner) — S3-compatible storage for Fly apps. By partner.
- Upstash Redis (partner) — Managed Redis via Upstash.
Developer interfaces
| Kind | Mintlify | Fly.io |
|---|---|---|
| CLI | mintlify CLI | flyctl CLI |
| REST | — | Machines API |
| GRAPHQL | — | Fly GraphQL API |
| OTHER | AI Chat Widget, Analytics Dashboard, API Playground, MDX + mint.json, Mintlify Dashboard | Fly Postgres (wire) |
Staxly is an independent catalog of developer platforms. Some links to Mintlify and Fly.io may be affiliate links — Staxly may earn a commission if you sign up through them, at no extra cost to you. Pricing is verified against vendor pages at publication time — reconfirm before buying.
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